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Prev Professional Automotive Repair Technical Discussions for June 7, 2011
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1998 BMW 740iL 4.4L MIL Lamp on, high idle VIN: WBAGJ832XW
This vehicle is started idling most of the time at 2000 RPM in park/neutral and about 1300 RPM in Drive (vehicle typically idles at about 700 RPM park/neutral. Code for IAC-P0505. Do not have a scan tool that will read live data or do bi-directional controls f... Trouble codes: P0505 (Idle Air Control System), P0733 (3rd Gear Ratio Incorrect)
2005 BMW 645Ci 4.4L MIL Lamp on VIN: WBAEK73445
Hello BMW Techs: We have a car that has returned for the thermostat again? We have a bulletin SI B 12 15 05 out of Alldata that states to replace the wiring harness and temp sensor if the car returns with the same code for thermostat! Has anyone run into this ... Trouble codes: 2EF4
2006 BMW 325i 3.0L Warning ligh VIN: WBAVB135X6
car came in with brake warning 'BRAKE' lit red and service required symbol displayed. according to owners manual this combination means brake pad (or sensor) failure. pads & rotors were worn. replaced front & rear pads & rotors, installed new sensors and tried...
1991 Cadillac DeVille 4.9L Poor Idle Quality, MIL Lamp on, no communication VIN: 1G6CD53B7M
Vehicle idles rough/misfires, service engine soon and service vehicle soon lights are on, fuel mileage data inop, and speedometer inop. These things all happen at the same time and it is intermittent. Usually happens at start-up, sometimes only lasts a minute ... Trouble codes: 52 (PCM Memory Reset)
2002 Cadillac Seville STS 4.6L Windows, Door Locks VIN: 1G6KY54912
Caddy came in with no windows operating and R/R window 1/2 way down. No door lock operation from inside switch. Window lock switch would not operate, no green light. At one time when my tech removed the master switch from the door panel, the drivers window wou...
2004 Cadillac SRX 3.6L Compressor VIN: 1GYEE63754
Car came in with AC working sometimes, we sucked it down found it wasn't low, recharged, found Compressor was not engaging. Tested Relay found Missing signal to relay, if jumped Compressor engages. Replaced relay just to be safe. Very odd is if you press the A...
1992 Chevrolet Lumina 3.1L fuel injectors VIN: 2G1WL54TZN
i need help! i have been pulling my hair out for 2 weeks on this car i have intermittent spark and i have no ground on my injecters both sides light up the test light evan when unpluged obviously no noid replaced inition mod. and crank sensor checked crank sen...
1998 Chevrolet Malibu 3.1L fuel/temp gauge VIN: 1G1NE52M9W
customer brought car in with the fuel gauge and temp gauge not working. i checked fuses and found the fuse in the underhood fuse box marked A/C-BFC blown. replaced fuse and everyting went back to working. the vehicle worked fine for a couple days then came bac...
2000 Chevrolet Monte Carlo LS 3.4L Passlock VIN: 2G1WW12E0Y
We have a 2000 Chevrolet Monte Carlo that came in with a lock cylinder that was siezed up. We replaced the lock cylinder and ignition switch and the vehicle will not start. We have power coming out of the switch to the pcm but no command coming out of the pcm....
2000 Chevrolet Express 3500 7.4L Misfire, MIL Lamp on VIN: 1GBJG31J9Y
Customer came in with this class C motorhome 7.4 engine with a check engine light on. check codes code p0300 random cyl. misfire found #1 cylinder showing misfires and #8 showing some misfire counts but not as much. Scoped tested vehicle found that plug wires ... Trouble codes: P0300
2001 Chevrolet Silverado 2500 6.0L abs control unit VIN: 1GCEK29UX1
hey fellow hair-puller-outers! i have a chevy truck here with a cranky a.b.s. system... occasionally (sometimes commonly) the abs is activated and all three wheel speeds match on data from 20 m.p.h. right down til 2 m.p.h. where the scanner stops displaying ac...
2002 Chevrolet Impala 3.4L Starting, lighting, instrument panel VIN: 261WF52E32
This is a stumper for me. This car came in with occasional no start and interior and exterior lights flashing. When you open the doors with the ignition key on, the courtesy lights flash rapidly and the instrument panel goes crazy. The daytime running light sy...
2003 Chevrolet S10 4.3L Poor Idle Quality, Hesitation VIN: 1GCDT13X73
After the hard miss was fixed by the tune up the low power issue is still present. The truck will barely pull on to a drive-on lift. Power braking (push both brake and throttle to the floor) the engine won't go over 1000 rpm. I scoured IATN and found that so... Trouble codes: P0300 (Random Misfire)
2003 Chevrolet S10 4.3L Poor Idle Quality, Cuts out, Stall VIN: 0123857013
truck stalled in driveway for customer, picked up, started right up and drove until stalled a mile from shop would start and backfire a little with very low idle 2-300 rpm Code PO101B was in the computer replaced maf sensor and pigtail ran perfect for about 5 ... Trouble codes: P0101
2004 Chevrolet C5500 Kodiak C5U042 6.6L can only go 30mph VIN: 1GBE5C1114
Unknown history, other than the alternator was recently rebuilt. The speedometer registers about 80 mph when you are only doing 30 or 40. Then the governer kicks in and doesn't allow faster speeds. The various modules, PCM, ABS, all indicate the same speed as ...
2005 Chevrolet Equinox LS 3.4L Cooling fan VIN: 2CNDL13F85
Vehicle came in with cooling great at cruising speed but at a stop or in town driving the a/c did not cool. We found that the high cooling fans were not coming on. At first we thought it might be the control head and we replaced with dealer and had no change. ...
2006 Chevrolet Express 3500 4.8L R.H. Wheel speed sensor circuit VIN: 1GCHG39V56
Vehicle came in with ABS light on steady. Retrieved DTC C0040 R.H. front wheel speed sensor circuit fault. Cleared and drove vehicle while graphing. R.H. wheel speed signal erratic. DTC re-entered every time restarting vehicle. Inspected harness. Found No prob...
2007 Chevrolet Suburban 1500 LTZ 6.0L rear lift motor VIN: IGAFK16387
the rear lift motor wont come on when i look @ data pertaing to this door it shows no change to any data to this door lock or un lock open or closed
2007 Chevrolet Tahoe LT 5.3L No Start VIN: 1GNEK13067
Hi, we have a Tahoe here that has turned into a real problem child! Our customer went to start it one day & it wouldn't crank so they tried to jump it. Still no crank! They then had it towed to our local Chevy dealer because they thought they had some warranty... Trouble codes: U0121 (Lost Communication With Anti-Lock Brake System ABS Control Module), U0140 (Lost Communication With Body Control Module), U0100 (Lost Communication With Engine/Powertrain Control Module ECM/PCM), U0073 (High Speed Communication Bus)
2001 Chrysler Town & Country (Van) Limited 3.8L Misfire VIN: 2C8GP64L61
This van came to us after the dealer replaced the #6 injector and that did not fix the misfire. The dealer said that the fuel rail was clean with no signs of rust. The misfire is only at idle and goes completely away above 1500 rpms and only comes back at idle...
2006 Chrysler PT Cruiser GT 2.4L airbag light on VIN: 3C3JY55E86
i have a 06 pt with multiple communication codes. complaint is airbag light on, no drivability concerns. i have codes u1414,u1415,u0025, u0019,b191f,b192f,u1923. tests indicate the totally integrated power module to be defective.not much of a test procedure pr...
1998 Dodge Grand Caravan SE 3.3L cluster VIN: 2B4GP44RXW
Customer was driving along, lost cluster operation and intermittant wiper operation. Upon inspection, found no communication with bcm. Bus wires 2.5 volts (DC) power and grounds good to BCM. Suspect BCM. Cannot source a bcm aftermarket or from the dealer. Anyo...
2001 Dodge Dakota 4.7L transfer case VIN: 1B7HG2AN81
four wheel drive will not engage
2001 Dodge Ram 3500 Truck 5.9L Mechanical VIN: 1B7MF33741
I have a 2001 dodge 1 ton 4x4. The side cover (push rod cover ) Gasket leaks. I just need some assistance. Does anyone have some simple procedures to r&r the gasket? There is nothing in alldata or shopkey for this. I can see what should be removed. I just do n...
2002 Dodge Ram 2500 Van 5.9L No Start, Stall VIN: 2B7JB21Z02
This is third time vehicle has returned for stall & no start in 18 month period. Each time towed in. First fix was coil on 12/4/09. Second fix was crank sensor, coil & ecm on 4/4/11. Vehicle returned on 6/1/11 stalled and no start and giving erratic spark. Rep...
2006 Dodge Ram 1500 Truck ST 4.7L No Start VIN: 1D7HU18N76
this is going to be is intermitte. does not crank. customer told me it did,nt start. when it was towed to my shop it didn't crank. had no power to starter. so i went to starter relay. put power to starter it cranked but did not start with key on. so i...
2007 Dodge Caliber SE 1.8L Misfire VIN: 1B3HB28C67
There is a definite misfire going on but have not had the issue of code PO00B before which is the variable valve timing phase issue. The oil was extremely dirty which I guess can cause some problems with the solenoid, change oil and filter and no change. Other... Trouble codes: P0300, P0303, P000B
2009 Dodge Durango SLT 4.7L stays running VIN: 1D8HD38P49
Complaint is that the vehicle will stay running intermittently when ignition is turned off and brake pedal is depressed. Once the brake pedal is released the engine will shut off. When the vehicle stays running all accessories and gauges work also, until brake...
2009 Dodge Grand Caravan SE 3.3L Win Module VIN: 2D8HN44E19
We have replaced WIN Modlue and are trying to reprogram module and keys. We have a Launch scanner, OTC Scanner and Snap On Solus. Can any of these reprogram the WIN Module and keys???
1965 Ford Mustang 4.7L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 5F9A703942
Hello fellow techs, This nice 65 Mustang GT with 110k original miles came in with a coolant leak at the timing cover, the vehicle ran well when it came in. We pulled the timing cover and as suspected the old school nylon covered timing gear was mostly in the o...
1990 Ford F-150 XLT Lariat 4.9L No Start, Hesitation VIN: 1FTEF14Y1L
Customer has a 1990 F150 with a 4.9 that will not start if it sits over night or all day. I have tried both fuel tanks with no change. Fuel pressure and volume are good. Spark is good. I can give a shot of carb. spray into throttle body and it will immediate... Trouble codes: 13 (Cant control idle at low RPM), 25 (No Knock signal during KOER test)
1994 Ford F-350 XLT 5.8L Pressure Solenoid VIN: 1FDKF37H7R
Truck broke down / tow in. Key On - constant spark, constant fuel pump, inside of PCM absolutely smoked - no data, no injection pulse. All grounds test good. All under-hood fuses and wiring good. I started to test all computer outputs, relays and solenoids f...
2000 Ford Expedition XLT 5.4L No Start VIN: IFMPU16L8Y
this truck was here before me but i have it now what i have notice is that the theft light is on when cranking.history states that the key was broken so it got towed here and that's when the fuel pump was put in didn't work so it got towed to the dealer and th... Trouble codes: B1845
2002 Ford Explorer Sport Trac XL 4.0L 3-4 shift VIN: 1FMZU77E12
This vehicle came in with shift concerns. PO734 and PO735 codes. We removed the pan, very clean fluid, very clean pan.I can operate all the shift solonoids with a scan tool and they all 'click'. When I bring EPC up you can hear it work.I swapped SSA solonoid w...
2003 Ford F-250 Super Duty XL 6.0L Power windows VIN: 1FTNX21P33
Thanks in advance for your help guys. This truck got me going in circles. The customer installed a DVD/Stereo on this truck and now it drains the battery within a couple of days. The main issue is that the illumination for the power window buttons stay on all ...
2004 Ford E-450 Super Duty 6.0L cooling system VIN: 1FDXF46P64
There are small bubbles in the de-gas bottle with turbo unplugged. Plugged back in and accelerated the bubbles increase dramatically. With the turbo unplugged the engine will never overheat. With the turbo plugged in the engine will overheat quickly and the de...
2006 Ford Expedition Eddie Bauer 5.4L Unknown VIN: 1FMPU18596
This truck makes a clunk or pop type noise (only one) when stopping and turning right at the same time. Must be going 30-40 mph then apply brakes and the moment you start to turn it pops once loudly. Nothing i have done so far has made any change in the noise ...
2006 Ford F-150 King Ranch 5.4L no power VIN: 1FTPW14556
This ford is sluggish/under powered on accel.On road test it feels exactly like restricted exh. symptom. No codes & data looks ok w/ driving with exception of spark adv.,which will drop close to 0 or slightly neg. at times.Has a slight tap from rt. side valve ...
1991 Honda Civic DX 1.5L Bosal muffler warran VIN: 2HGED6350M
My question is whether any of the other iatn technicians have had a similar experience with Bosal warranties? The customer is annoyed with me because he believes that I frauduently encouraged him to purchase a worthless warranty. I want to alert other technic...
1998 Honda Prelude 2.2L Crank no start VIN: JHMBB6244W
The problem car is having is when you first get in the car to start it, it cranks and cranks and won't start unless you turn key back to full off position and then it will start right up. And if you cycle key from off to run and off to run twice it fires righ...
2000 Honda Passport EX 3.2L Plywheel VIN: 4SBCK58W4Y
Would appreciate any help on alieviating this problem and what to look for as to what could be the problem with breaking flywheels on honda passports.i service all vehicles and i'm not a honda tech.
2003 Honda CR-V EX 2.4L Pressure VIN: SHSRD78873
Good morning, IATN. I have a 2003 Honda CRV with a compressor/pressure issue. The customer brought the car to use last week complaining about no A/C. We brought the car into the shop and check it out. We found the A/c compressor was in-opt. We than went ahead ...
1991 Jaguar XJS 5.3L Poor Idle Quality, Cuts out, Stall VIN: SAJTW4847M
This Jaguar came in for a steering malfunction, to much play in the wheel. Found that steering rack was bad an replaced it. Drove car to have it aligned, about 30min away, and back. When I got back the engine was hot and it would start but then instantly die. ...
1999 Jaguar XJ8 4.0L MIL Lamp on VIN: SAJKD6048X
I have several 1999 thru 2003 jaguar xj8 sedans that have triggered the p0442 code for evap valve. I have replaced both the canister close valve and the purge valve and check for leaks and found no leaks. I have swapped computers and traced wiring and can not ... Trouble codes: P0442
2004 Jeep Grand Cherokee Limited 4.0L Trans VIN: 1J4GW48544
Hi guys, I really got a problem here. We put a tranny in this jeep months ago. It came back in with a problem that it would neutral out in passing gear going uphills at about 50 to 55mph. By the way it's from Lasper. Anyway went through some diag. with Jasper ...
2005 Jeep Grand Cherokee Limited 5.7L Electronic VIN: 1J8HR58205
I have this Jeep here that sets a P0700 in the PCM and P0888 in the TCM P0888 - transmission relay always off. Customer states that when driving and decerating from 4th gear it will stick in 3rd and not upshift until he cycles the key. He states that this will...
1997 Mazda Protege DX 1.5L Brake Pedal VIN: JM1BC1417V
Hello iatn tech i have this mazda protege the brake pedal feels like it has no assist. I replace brake booster,front pads rotors,blled brake and adjusted rear brakes.i feel like a retard at this point.i read a post early about slide pins and brake hoses being ...
2004 Mercedes-Benz C240 4Matic 2.6L brake lights VIN: WDBRF81JX4
The brake lights on this car intermittently will be stuck on when the key is turned on. Stepping on the brake pedal does not turn them on or off. Other times they won't work at all. Sometimes they work like they should. My problem is that I can't find the brak...
1991 Nissan 300ZX 3.0L No Start VIN: JN1RZ26H1M
hello iatn world.i have gotten myself into a good situation and now need your help to get myself out.this wonderful car has been sitting for a year or more and was towed to me to get running and repair a hand full of other small issues.checked oil,coolant and ... Trouble codes: 21 (ignition signal malfunction)
2001 Nissan Sentra GXE 1.8L MIL Lamp on VIN: 3N1CB51D41
This vehicle will set the ck eng lamp after a while of use with a code P0154. The scanner says bank 2 sensor 1. When I look at the wiring diagram the diagram calls this particular sensor B1S1. Anyway, when the car is started the sensor reads .255 for about 20 ... Trouble codes: P0154
2002 Nissan Sentra GXE 1.8L camshaft VIN: 3N1CB51D22
This car came in with a dead miss I suspected an ignition coil no luck Did a leak down test found cylinders 3 and 4 leaking and low compression on both 3 and 4 Head gasket was blown between 3 and 4 pulled head sent out to machine flat reinstalled head The comp...
1998 Pontiac Grand Prix GTP 3.8L MIL Lamp on VIN: 1G2WP1217W
Hello, and Thank you for your time. Customer Brings in the car with SES on, code P0122. He has replaced the TPS twice. After clearing the code, It takes about two weeks for the code to reappear. With the code cleared, you cruise down the highway at about 50m... Trouble codes: P0122 (Tps sensor circuit low voltage)
2000 Pontiac Sunfire SE 2.2L Cuts out VIN: 1G2JB1247Y
Hi I have this 2000 Pontiac Sunfire That came in with a crank sensor error. The car will start and idle fine but when you give it any gas it will stall and set the crank sensor error.The customer put new plugs, wires, coils, and an ignition module on it and ha... Trouble codes: P0336
2005 Pontiac Aztek 3.4L shift lever VIN: 3G7DA03E85
Hi guys I don't work with this interlock system at all. On this sometimes the shifter will not move and then the next time you try it it works just fine. Sometimes when trying it the brake pedal does not need to be pushed and the lever will move. But most of t...
1993 Porsche 911 Carrera 2 3.6L No Shift VIN: WPOCB2965P
We have been working on this 911 with the tiptronic trans for over a month, with no sucess. The customer had it at the local porsche dealer whom told him it needed a new transmision control box. We ordered a new one. Same part # as old one and we have no chang...
1995 Saab 9000 Aero 2.3L ABS and TCS light VIN: YS3CH65R1S
Vehicle came in with abnormal braking. Found vehicle would pull to the left during hard braking. Measured braking force at all wheels and found 50 bar at all calipers except right front caliper. Suspected a bad ABS hydraulic unit. Replaced complete hydraulic u...
2003 Saturn L200 2.2L No Start, Cuts out, erratic guage readin VIN: 1G8JU54F43
Thanks in advance for any help offered. This one is interesting. Vehicle problem became noticible when speedometer stopped working (intermitant condition). Shortly after, vehicle had intermitant start-up problem (ultimately starting). Wrench light would illumi... Trouble codes: U1000 (Class II serial data link malfunction), U1088 (Lost Com. with SDM), U1016 (Lost Com. with ECM), P1631 (Theft deterent fuel enable signal not correct), P1599 (Engine stall detected)
2001 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH6756Y
Tested for proper voltage and ground according to snap-on solus troubleshooter. Testing showed faulty air assist solenoid (known as iac valve by other manufacturers). Originally, the idle was low and engine tried to stall. After repair, idle quality was much b... Trouble codes: P1207 (Air Assist Injector Solenoid Valve Circuit Low INPUT)
1995 Toyota Camry LE 2.2L Cooling Systems VIN: 4T1SK12E2S
hello camrie 2.2 boiling over when you shut the engine off has a new radiator some other shop the coolant resivor has a leak the over heat is intermitant fans are working i am thinking head gasket maybe radiator cap dought it thermostate? system looks clean ne...
2000 Toyota Tundra 3.4L Valve Cover VIN: 5TBBT4815Y
the vehicle data menu did not give me the 4.7L v8 option, which this one is. NOT a v6!! the valve covers have a plate covering the spark plug tube seals and this plate seems to be riveted or bradded into the valve cover. the plate has to be removed to remove t...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 Buick Regal LS 3.8L Stall, MIL Lamp on VIN: 2G4WB52K8W
Well, it seems like we can ship this one finally. many of you hit it right on the head, we had a damaged wire from previous valve cover gaskets we changed. on the front valvecover, the 3x reference wire had a small pinch which had exposed the wire, and just so... Trouble codes: P0706, P1361, P1362, P1374.
1989 Chevrolet S10 2.8L Manual Low VIN: 1GCCT14R6J
The input drum was broken and causing the binding. Also found that the governor valve was stuck. Replaced input drum and governor and so far all is good. Thanks for the replies.
1995 Chevrolet C3500 7.4L not switching fuels VIN: 1GKC34N5SJ
Thanks,Ernest and Ron for replies.It looks like I will need just a DPDT toggle switch to interrupt the gasoline fuel pump, and as Ernest pointed out, two relays to deactivate the TBI injectors.The propane system is not yet fixed as supervsors haven't decided y...
1996 Chevrolet Monte Carlo LS 3.1L Stall VIN: ZG1WW1ZMXT
The problem turned out to be a faulty new ignition module. Thanks to those who responded.
2003 Chevrolet Tahoe Z71 5.3L acuator VIN: 1GNEK13283
dave you were right customer was workin under the dash hooking up some aftermarket stuff and one of the plugs on the right side of the dash became un seated thanks for the help calibrated the doors like it said on all data and everything started workin properl...
2006 Chevrolet Malibu LS 2.2L shift VIN: 1G1ZT51F56
Thanks to all that replied. had some great tips.We drop the trans valve body and clean it out (wasnt dirty). Road test, code took a while to come back. We notice that on harsh driving it tends to shift rigid and thats when the code will pop up. So we pour in a...
2005 Dodge Stratus R/T 2.7L thermostat housing VIN: 1B3EL46R65
Customer declined repair on this vehicle After we installed the new OEM Part (thermostat Housing) Ran this unit for a prolonged time in shop and outside (100 degrees yesterday) Unit had all fans working properly - when this unit hit about 209 degrees on temp ...
1987 Ford Ranger XLT 2.9L high idle VIN: 1FTCR14T2H
although there were some useful tips, this problem still wont go away. everything that was mentioned was tried but this vehicle still acts up only after seems that there is a stray voltage spike sent to the iac on warm start up, if the key is shut off ...
1996 Ford E-350 Econoline Club Wagon XL HD 5.8L ign/start switch VIN: 1FBJS31H9T
Thanks for all the help. What a community of helpful people!!! I feel silly, but the solution was a new fuse #7. I checked the fuses three weeks ago and all were good. The starter solenoid was original and didn't have a healthy click to it, so I replaced it...
1997 Ford Aerostar XLT E4WD 4.0L Hesitation, Misfire, MIL Lamp on VIN: 1FMDA41X2V
this thing only allows one update so im going to close this out for now. we put dye in the coolant heated it up and pressurized it, next morning the pressure was gone and there was a little puddle of coolant under the van, the timing cover was leaking out t... Trouble codes: P0303.
1997 Ford F F700 7.0L No Start, Stall VIN: 1FDPF70JXV
For what it is worth, I got this truck fixed. It had a bad(aftermarket) distributor(imagine that). The truck shop had come to pick it up, and it stalled and wouldn't restart, so I went through my testing again, and it came down to a bad distributor. On t...
1999 Ford F-250 Super Duty XL 7.3L Clutch Pedal VIN: 1FTNX21F1X
Fixed... the Gas truck has a longer master cylinder pushrod
2006 Ford F-150 King Ranch 5.4L MIL Lamp on VIN: 1FTPW12525
Many of you were right(and I figured you were because the alterative was too coincidental). The trans shop pinched the wiring harness causing the DTC to set and turn "ON" the MIL. I finally talked the customer into bringing the truck back to the trans shop a... Trouble codes: P0141 (Heater circuit Bank 1 post cat sensor), P0161 (Heater circuit Bank 2 post cat sensor).
1994 Honda Accord EX 2.2L oil leak VIN: 1HGCD7251R
Thanks for the 21 replies. Bryan, Bobby, Serge, Kenneth, Tony, Benjamin, Chris, John, Tommy, David and Joe all told me about the vtech solenoid. I did look for that and there was none. Savon said about the rear main, I checked it and it was ok. Ron and Cgarles...
2003 Hyundai Tiburon GT 2.7L steering wheel/car VIN: KMHHN65F23
well only had to wait a week to get the parts here but two new axles fixed this blankety-blank-blank car LOVE to find parts for cars that are this uncommon i was pretty certain it was the axles but based on the "feel" test i would have been partly guessin anyw...
1999 Jeep Grand Cherokee Laredo 4.0L Surge VIN: 1J4WGW58S2
2005 Jeep Wrangler Unlimited Rubicon 4.0L incoplete moniters VIN: 1J4FA64S15
checked wiring to nvld switch and found frayed wire rubbing against frame. repaired and one monitor run later all good. thank you for those who replied Trouble codes: P0456.
1999 Lexus RX300 3.0L no 4th tcc VIN: JT6HF10U7X
Well I got 8 replies and it was apparent that regardless of the test results we did the first thing to do was replace Knock Sensor.I ordered the parts from dealer also the wiring connector and gaskets and a bypass hose according to the tech at dealership he re...
2004 Lincoln Aviator 4.6L abs VIN: 5LMEU88H44
Thanks guys for the excellent suggestions. The vehicle came in on Monday and we replaced the master cylinder pressure switch, which seems to be a Ford only item. The test drive proved ineventfull (which wasn't a suprise) and we haven't heard back from the cust...
1966 Mercedes-Benz 250SE 2.5L Poor Idle Quality, Hesitation, Misfire
The most common response by members was to check for a stuck piston below the fuel fitting in the mechanical pump. Our problem was a sticking check valve (located above the piston) that was not doing its job alowing the fuel to be sucked back into the pump ins...
2000 Mitsubishi Montero Sport LS 3.0L No Start, Poor Idle Quality, Surge, Cuts out, Stall VIN: JA4MT31H1Y
2000 Nissan Sentra XE 1.8L Spark knock VIN: 3N1CB51D8Y
First this vehicle ran great no missfire or weak cylinder all we had was a spark knock. So we had one of our other shops look at it and they said they thought that someting was washing cylinder number one. e brought the car back and removed spark plugs and add...
2006 Nissan Titan SE 5.6L Back up Alarm VIN: 1N6BA06B96
Got the wiring diagram out for this one and started checking powers and grounds. Customer stated later that the sonar had quit working shortly after a harness had been replaced for the LR door. At first I thought no way should that effect the sonar system but ...
2004 Pontiac Grand Prix GT2 3.8L ABS brakes VIN: 2G2WS52264
Took a [...] time to diagnois, customer took vehicle on vacation w/ problem not fixed. This vehicle does not have removeable sensors to take apart and clean, not an option. Vehicle would not set a specific hard code even testing 3 different appointments in the ...
1999 Porsche Boxster 2.5L whistle/whine VIN: WP0CA2984X
Well...The noise went away and hasn't come back. I guess this is more of a summary than a fix. I called the client a few days after the posting as to when he was going to have us re address the issue, he came in for something else and hasn't had the problem si...
2004 Porsche Cayenne 3.2L No Start VIN: WP1AA29P14
yes the car is fixed,thanks for the replies,I always appreciate them,I knew it was going to be something dumb,and that is what it was First unbeknownst to me my noid light was burned out so I was getting injector pulse,but no I wasn't.What is this you s...
2006 Porsche Cayenne S 4.5L 1-2 shift VIN: WP1AB29P56
sorry for taking so long, but I would like to thank Craig and Avinash for their input. The vehicle is not repaired but we discovered why there was a code for the Tiptronic conrol module. I took craigs advice and checked out the module, while taking it out for...
1984 Toyota Tercel SR5 1.5L Mechanical VIN: JT2AL35W0E
Concluded that a 4ac head will not work on a 3ac block
1998 Toyota Corolla CE 1.8L Hesitation, Cuts out VIN: 1NXBR12E2W
Thank you guys for responses. Actually we scoped the oxygen sensor under a light load and it showed bad patterns. I can say the new sensor solved the problem - customer drives the car for 10 days now with no problem.
2001 Toyota 4Runner Limited 3.4L MIL Lamp on VIN: JT3HN87R31
Just wanted to thank all of you that responded to my help request! I tested bank 1, sensor 1 A/F sensor heater circuit with my ohm meter. Sensor tested open, no resistance at all. We replaced this sensor with a OEM part and cleared the CEL. Vehicle was test dr... Trouble codes: P1135.
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