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Prev Professional Automotive Repair Technical Discussions for May 13, 2011
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1994 Acura Integra LS 1.8L No Start VIN: JH4DC4457R
This car was handed over to me with a new distributor, ign switch, and main relay. After a 10-20 minute drive, and following shutting the car down, vehicle will sit for 10 minutes then fail to start, much like a failed main relay. This problem is very intermit...
2002 Audi S6 Avant 4.2L a/c compressor VIN: WAUXU64B52
Dont work on alot of these but i find myself navigating pretty good through these audi/vw's. I have a audi with no a/c clutch operation. it has electronic climate control. i find that i have no ground signal coming from the climate control head to the relay. i...
2003 BMW 745Li 4.4L no gear at all VIN: WBAGN63423
now does the same thing , when warm does not go in gear .no codes
2006 BMW X5 3.0i 3.0L MIL Lamp on VIN: 5UXFA13586
check engine light on has 1 code P1191 EC O2 sensor Bank 2 before cat converter trimming What does this mean? Do not have the info on it thanks you Dick [...] Trouble codes: P1191 (EC O2 sensor Bank 2 before cat.), 236 (BMW code for same above)
2006 BMW 330xi 3.0L 4x4 VIN: WBAVD335X6
The idrive box shows the 4X4 ! symbol with thw service symbol. also the traction light is on ( triangle with a circle and last the brake light is on. The only thing so far we saw the brake sensor cable broken and yet to fix.(just saw that). otherwise we have c...
1998 Buick Park Avenue 3.8L No Start VIN: 1G4CW52K5W
This vehicle was brought in on the hook. The customer complained of hearing a loud popping sound then vehicle died and would not start. The vehicle cranks but makes an abnormal sound, almost like the timing is way off. It attempts to fire but will not run. Tes...
2004 Cadillac CTS 3.6L 3-2 Coastdown VIN: 1G6DM57794
Customer states this started only recently, has owned car since new. When cold, & I have verified this, you get a pronounced 3-2 coastdown clunk, goes away after driving about 5 miles. There are no DTCs, I've reset trans adapts, drove cold with scanner & see...
1982 Chevrolet C60 C6D062 5.7L Excessive Emissions, Poor Fuel Economy VIN: 1GBG6D1A3C
I'm normally an Import guy, but I was talked into this by a friend. Carburetor fills until fuel is running out the jets. Overhauled carb, no help, installed another needle and seat from another source, no help. Have studied float, float level and operation car...
2002 Chevrolet S10 4.3L Misfire VIN: 1GCCS19W82
hello there, I have no clue whats wrong with this truck. 02 s10 w/4.3. It has a misfire code(p0300). #3 and #6 misfire @ 1800rpm and i have no clue why. I replaced the crank sensor and added shims but no luck! Whats crazy is that when i remove the brake booste... Trouble codes: P0300 (Misfire random)
2004 Chevrolet Impala 3.4L Instrument Panel VIN: 2G1WF52E54
Several weeks ago this car came in to our shop. The customer stated that the speedometer didn't work. As soon as I climbed in the car I noticed that none of the gauges worked. I did a gauge sweep test with the Tech 2, and they all started to work. Perhaps this...
2004 Chevrolet Silverado 1500 Z71 5.3L Fuel gauge VIN: 2GCEK19TX4
This truck has a fuel gauge stuck on Empty. I first checked for gauge operation by unplugging connector at fuel tank and grounding sensor wire. Still no movement on gauge. Checked all fuses- good. All other gauges work properly. Replaced the cluster with a rem...
2001 Chrysler 300M 3.5L 1-2 Downshift VIN: 2C3AE66G61
Sometimes when you come to a slow stop 5 mph, it feels like it downshifts really hard from 2nd to first. any data pids i can monitor to try and fix this problem? I checked for tcm updates but it is up to date. is there an accumulator for this trans or a sticky...
2004 Dodge Ram 2500 SLT 5.9L No Start VIN: 3D7KU28C24
While not a diesel tech, I usually fix them ok. But this one has been strange. Truck was towed in. Died on the road. Customer reports the truck was exhibiting hard start and rough idle prior to failure. I found it cranking ok. Initially when cranking the motor... Trouble codes: P0480 (Fan clutch), P0243 (Waste gatecontrolcircuit)
2007 Dodge Caliber SXT 2.0L Stall VIN: 1B3HB48B57
Ive got this 07 dodge cliber that stalls after the engine warms up. all sensors read normal, no codes. runs fine until stall. checked fuel pressure 57 psi. found out that the fuel pump is shutting down causing engine to die. I dont have much information on thi...
1994 Ford Ranger XLT 3.0L all gauges and charging VIN: 1FTCR1446R
no matter what it will not put out 14 volts with new alternater installed and new battery. all fuses look good and turning on stuff or loading changes nothing. checked voltage at alternater and it was same as voltage and yl/wht wire had 12 volts with key on bu...
1998 Ford Ranger XL 2.5L trempeture gage VIN: 1FTYTR10C7
vehiculo tempeture gage fluctuates frton cold to a midlle while driving ... olso noticed when ruber up to 3000 rpm nedle move to a midlle , graduly slow down the rpm to idle the nedlle goin down olso. any ideas apresiate...
1999 Ford F-150 5.4L Poor Idle Quality VIN: 1FTRX18L2X
Hello all, Just did head gaskets on this Ford due to an oil leak. All went well, however now it runs rough at an idle. Runs great down the road. I have tried an egr valve and both bank 2 oxygen sensors, based on my LTFT, bank 2 is compensating for a lean cond...
2000 Ford F-250 Super Duty XLT 6.8L 4x4 VIN: 1FTNW21S7Y
This vehicle has no 4 wheel drive. At first the 4x4 light on dash would come on driving down the interstate without the 4x4 being engaged.Then it would work occasionally when switching from 2 to 4 wheel drive. Now when turning the switch from 2 high to 4 high ...
2006 Ford E-350 Super Duty 5.4L MIL Lamp on VIN: 1FTSS34L56
I have checked all the basics with the dtc. The p2197 code has returned. I switched the sensor with known good one and the reaings from b1s1 remain the same. Trouble codes: P2197
2006 Ford Taurus SE 3.0L Hesitation, Surge, Cuts out VIN: 1FAFP56U36
This ones got me. This problem is more prevelent when the weather is hot but can duplicate on cooler days once warmed up. It hesitates or bucks when shifting but no codes. acted like ignition miss so did complete tune/ also swapped coil with known good one. If...
2006 Ford Freestar SE 3.9L Hesitation, Misfire, MIL Lamp on VIN: 2FMDA51616
Customer says engine was misfiring,pinging and loss of power.When I first scanned PCM and pulled those codes shown.STFT was +40 to 50% increase on both banks and No LTFT's at all,looked to be disabled? The fuel pump duty cycle is 100% all the time.Fuel pressur... Trouble codes: P0171 (Lean bank 1), P0174 (lean bank 2), P0511 (IAC error), P2195 (O2 signal biased stuck lean bank 1), P2197 (O2 signal biased stuck lean bank 2)
2007 Ford E-250 4.6L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1FTNE24WA7
This van came in running rough,missing,on several cylinders.set a code for p061b and mass air flow circuit high,p0103. Went to aldata and read the digram and perform the test and it came up replacing the mass air flow sensior,so i did.replaced all spark plugs,... Trouble codes: P061B, P0103 (Mass air flow circuit high)
2004 GMC Envoy XL SLE 4.2L torque convertor clutch VIN: 1GKET16S34
Hello gentlemen, this 04 envoy acts like it needs a reflash, but I can find no new calibration to fix this intermittent TCC lockup problem. As long as you drive 70mph or faster the slip rpm is less than +5. At 69mph or below the convertor goes in and out of l...
2006 GMC Canyon SL 2.8L ignition key VIN: 1GTDT19646
The battery goes dead on this truck at times because you can turn the key off and pull it out of the vehicle and the truck will still keep running or at times it will just act like the key is in the on position when you pull it out with the engine off the dash...
1995 Honda Civic LX 1.5L Speedometer VIN: 1HGEG8550S
Hi folks, I have been trying to figure out why the speedo on this car keeps intermittently reading too slow, or bouncing. Sometimes it will be reading slow and then bounce up to the correct reading. We have tried two other used instrument clusters with basica...
2007 Honda CR-V LX 2.4L tire psi- TPMS VIN: JHLRE48327
We have a 2007 honda crv. This vehicle came for inspection and the customer stated that his (TPMS) lamp was on in fact it was . We got the codes 32-35-36 ordered a tpms sensor and replaced the left rear sensor. We used a snapon verus to re code the sensors. du...
1995 Isuzu 4700 466CID repair procdure VIN: 1HTSCAAP0S
i am trying to replace rear govonor cover gasket on a bosh injector pump 6 bolts hold cover on and linkage is atached to cover and pump how do they come apart to replace this gasket we have no info here.dealer told us this was a simple hour and a half job i no...
2002 Jaguar X-Type 3.0L MIL Lamp on VIN: SAJEA51C72
Car came in as a no start had no fuel pressure we replaced the fuel pump it then ran fine one week later no start again fuel no pressure again or varying pressure up and down down to 10 psi we installed another pump and it starts up fine after a few seconds th... Trouble codes: P0191
1988 Lincoln Mark VII LSC 5.0L Drivetrain VIN: 1LNBM93EOJ
I'll try to keep this short.Customer has P.O.S 88 lincoln mk vii with a healthy 5.0 he also has an 83 lincoln with a broken 302 w/carb he wants me to swap F.I.5.0 into 83 chassis. am i crazy to try this? i know i will have to overcome fuel pressure and linkage...
2007 Mazda B3000 3.0L Steering VIN: 4F4YR46U07
Customer complained of steering wheel shudder. Took it out for a drive and whenever I hit a pothole, steering shudders wildly until vehicle is slowed down. Found power steering pressure like leaking and replaced. Took it out for a drive again and the same thin...
1999 Mercedes-Benz CLK320 3.2L Noise VIN: WDBLK65G9X
I have this mercedes that has a "humming" noise after it is driven for a short while. It starts making the noise at light cruise (30 mph) and then after it gets good and warm it will make it at idle. Some times it will not make it at all. The noise was coming ...
1998 Mercury Villager GS 3.0L Excessive Emissions, Misfire, MIL Lamp on VIN: 4M2ZV111XW
Keep in mind nissan engine!! anyway about 2 weeks after tune-up car came back with customer complaint of running rough, cel on but no misfire codes present, only p0100-maf code & p0325 knock sensor circuit b-1, suspected & removed egr valve and tested, opens a...
1998 Pontiac Sunfire SE 2.2L No Start, Stall VIN: 1G2JB5243W
This car was brought to us for start and stall within seconds. Found 2 DTC P1629 and U1016. We were able to get vehicle to start if you turned the key in a certain position. Replace Cylinder lock with sensor and key, reprogrammed key. Vehicle will still not st... Trouble codes: P1629 (Theft Deterrent System Fuel Enable Circuit Incorrect Signal Detected During Crank.), U1016 (U1016 - Loss of Class 2 Communication with VCM.)
2004 Pontiac Grand Prix GTP 3.8L Abs Module VIN: 2G2WR52474
I have a 04 Grand Prix GTP that has a code CO550.ABS,red BRAKE and trac lights on.The flow chart from Alldata is short and sweet.If code is current which it is no further diagnosis required-just replace EBCM.A new one was $1200.00.Due to cost customer asked me...
2005 Subaru Outback Limited 2.5L Poor Idle Quality VIN: 4S4BP62C35
the car came to me for cv axles, belts and fluids. after returning the car to the customer, she said there was a bad vibration that wasnt there before. the vibration is pretty bad. it occurs while at a stop, in gear with the brake pedal applied. i tried runnin...
2004 Toyota Sequoia SR5 4.7L brake light VIN: 5TDBT48A44
got this customer that has a intermittent brake light on the dash that comes on. it is random some times when starting the vehicle it will be on and stay on till the key is cycled off and on agian.other times it will come on while driving. dont know if any oth...
2007 Toyota Corolla CE 1.8L Misfire, MIL Lamp on VIN: 1NXBR32E47
Looking for help on this Corolla and also on a 2000 model. Both cars have returned multiple times with repeated coil failures on #1 cylinder. We have no spark, but power and signal to coil. The 2000 model's owner has a son that is a tech at a Mississippi Toyot... Trouble codes: P0301
1998 Volkswagen Beetle TDI 1.9L mil VIN: 3VWBF61C1W
ichanged the t belt and it would not start i didnt lock the pump pin all the way in and it moved a little i fixed that i gave the car back no it returned with code p1248 on my quick code checker i need with this car bad plz thanx in advance
2000 Volvo S80 2.9 2.9L cam timing VIN: YV1TS94D1Y
Help me out volvo techs, had to put a vvt unit on the intake side cam, i think my cam some how got out of sink(turned) on me and dont think i have the vvt unit in the right spot did the whole alldata procedure for installing and removing belt,marked all my cam...
2001 Volvo S60 2.4T 2.4L Reduced Performance VIN: YV1RS58D71
When driving down the city streets the car slows to around 10 mph and the dash indicated Reduced performance. You have to turn the car off to get it to reset and then you are good to go until the next time. During normal operation the car has a slight hesitat...
2006 Volvo S60 2.5T 2.5L Hesitation, Cuts out, Stall, MIL Lamp on VIN: YV1RS59226
This vehicle came in on 04/11/2011 with cutting out and lack of accelleration. We found codes ECM925C---THROTTLE VALVE SIGNAL TOO HIGH DTC IS FOUND ACTIVE. ECM120C---AIR MASS SIGNAL TOO HIGH DTC IS FOUND NOT ACTIVE. ECM9200---THROTTLE POSITION (TP) SENSOR FAU...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 328i 2.8L Safety VIN: WBAAM5331Y
Thank you for all your replies, I have ordered a different connector so that I can read the codes, and I am waiting for the part.
1995 Buick Park Avenue 3.8L Stall VIN: 1G4CW52K4S
Cleaning the IAC and Throttle Body seems to have cleared the stalling issue up. THanks everyone for the assistance. Trouble codes: P0325 (Ign system problem Elec SPark Control ESC Failure), P0705 (PRNDL Switch Failure).
2004 Cadillac XLR 4.6L MIL Lamp on VIN: 1G6YV34A24
Hi guys, sorry it took so long, finally got this one out of the shop but its still not 100%. Changed the throttle body and the car no longer kicked codes on startup. It actually doesnt do it very often at all anymore, only sometimes at WOT on the highway! None... Trouble codes: P1101, P0068.
1996 Chevrolet Blazer LS 4.3L heater or dash VIN: 1GNDT13W1T
Thanks to everybody,never disapointed with iatn members.We are held in high regards by my customers.This was something I doubt I would have knowned.I pulled the hose off the heater core and filled the rad,and just as it was explained that worked.Thank you all....
2000 Chevrolet Tracker 2.0L Input Speed Sensor VIN: 2CNBJ13C4Y
narrowed down to replacing the ECM-ordered one from out of state salvage yard who forgot to ship it-customer got p.o.ed and took it without fixing it-thanks for all the replies-if she brings it back will post fix
2004 Chevrolet Silverado 1500 Z71 5.3L 1-2 and 2-3 shifts VIN: 2GCEK19TX4
Well I am happy to say that this vehicle is fixed. Thanks for all the replies. The suggestions to check the MAF sensor were right on. After driving the truck with the sensor unplugged the pressures went to normal. I tried cleaning the sensor but that didn'...
2005 Dodge Ram 3500 SLT 5.9L clutch? VIN: 3D7MS48C95
Thanks to all for the advice on the clutch.Since the vehicle is usable we are in a go slow mode while we discuss with Valero what will be done with the brand new clutch setup.
2000 Ford F-550 Super Duty XL 7.3L Poor Idle Quality, Misfire VIN: 1FDAF56F6Y
i want to thank everyone that replied,with all your help its fixed there was 2 problems found #5 injector had failed, after running engine with vc off #5 injector oil spout wasnt dumping oil like the other ones,so that took care of the misfire,went for a test ...
2003 Ford F-250 Super Duty Lariat 6.0L No Start, Cuts out, Misfire VIN: 1FTNW21P63
Sorry for the long delay have been very busy, finally got back to this POS, pressurized system found we had 3 leaking injectors and both stand pipes were leaking, replaced these items truck fired right up and runs great, just goes to show even though the high ... Trouble codes: P2263, P0102, P0113, P0401, P0403, P0404.
2003 Ford Explorer XLT 4.6L Wheels VIN: 1FMDU74W73
This truck has been gone for 2 weeks now without a squawk. Lug nuts,seats, and hub flanges all look OK. Not oblong or wallowed out. It appears that corrosion build up in the pilot hole and on the hub pilot is interfering with installation. Cleaning way up ins...
2005 Ford F-150 Lariat 5.4L overretarded timing VIN: 1FTPW12545
Thanks to every one of the technicians that lent their knowledge to repair this truck. From the replies we got, we now know that the most common cause for this concern is the flow of oil in the system. Alex from Virginia has a lot of experience on these engine... Trouble codes: P0022 (over retarded cam timing bank 2).
2006 Ford Escape XLT 3.0L Driveshaft VIN: 1FMCU93126
Customer decided after all he would spend the money. New $733 drive shaft. Vibration gone!!! Thanks for all the help everyone.
2007 Ford Fusion SE 3.0L Electronic VIN: 1FORDFUSIO
Like 3 0f the 4 replies said replace the evap sensor Sooo pulled the dash baqck out and replaced the sensor and it fixed it Thank you for the replies except for the 4th one he tried to sell me ford info
2008 Ford Edge SEL 3.5L pass inner tie rod VIN: 2FMDK38C28
you can do it just like any other accessable rack. i was quoting the customer and wanted to make sure we didnt need to quote the 6 hours rack removal. all aftermarket labor manuels said rack removal and i just wasnt sure thanks
2009 Ford F-150 XLT 5.4L Poor Idle Quality, Cuts out VIN: 1FTPW12V09
Well after playing with this truck I replaced both front 02 sensors and had no change. Found a few misfires on diffrent cylinders so tried changing some coils and plugs on the ones showing misfires. All this was to no avail. The customer opted to take the truc... Trouble codes: P0135.
2004 GMC C5500 Topkick C5C042 6.6L No Start VIN: 1GDE5C1134
we finally got a scope and within 10 minutes found the crank sensor was going in and out, after further, we have found that the exciter ring on the crank has broke off. we have ordered the part, and will be finishing the repair soon. we are confidant that this... Trouble codes: P0374.
2008 Jeep Patriot Limited 2.4L No Start VIN: 1J8FT28W58
My sincere thanks to the 3 replies I got. The first reply lead me to check the wiring harness under the plastic cover next to the front seat on the drivers side for a junction of wires that might have corroded. All the wiring was immaculate. The other 2 replie... Trouble codes: P161B.
2000 Land Rover Range Rover HSE 4.6L Eas VIN: SALPV1644Y
Thanks for all the help. Sorry I'm such a dummy. It was the thermal switch in the compressor. When this switch opens it interupts the ground to terminal 16 at the EAS ECU so the ecu shuts off power to the comp. relay. Its very simple to test. The large 4 term....
2004 Lexus RX330 3.3L Poor Fuel Economy VIN: 2T2HA31U34
I did disconnected the battery for an hour to let him try and he call me back after a week and the gas mileage getting better but he still want to go to dealer to get the computer update.Thanks for all the help. Trouble codes: P2197.
2001 Lincoln Continental 4.6L No Start VIN: B2H4S63JG4
thanks to all who replied exp robert and bryan you guys helped me a lot as it turns out i looked for the 5 volt the way that bob said to no aval so i followed bryan and powered up the coil and it ran so using a shamitic i went though the frist splice and then ...
1999 Mercury Tracer GS 2.0L No Start VIN: 1MEFM10P2X
It was indeed a connector that came loose. I was gonna test wires for opens at bulkhead connectors to engine. I found that one of the two at right strut tower was broken and not holding together tightly. Pushed it in and the beast started. It looked securely c...
2007 Mini Cooper 1.6L No Start VIN: WMWMF33587
the fix for this vehicle was timing had jumped 3 teeth off. Reapaired and all is well now. Thanks for all the replies Trouble codes: 2968 (inlet camshaft sensor).
1986 Nissan 720 2.4L No Start, bat was hooked up ba VIN: JN6ND16S6G
help was redundent of what we wrote we had a second bad used computer, "BUT OF COURSE" it came off a running truck, SURE IT DID. Trouble codes: 23 (normal with a no start), 24 (normal with a no start).
2006 Nissan Titan LE 5.6L Poor Idle Quality, Surge VIN: 1N6AA07AX6
Had to do: 1. Acc Pedal Release Relearn 2. Throttle Valve Closed Postition Relearn and 3. Idle Air Volume Relearn(had to do all 3 steps manually as I don't have a Consult II). Must do these 3 relearns in this order IF the TB, MAF or Accel Pedal assembly are ... Trouble codes: P0102 (Mass or Volume air flow circuit LOW), P0113 (IAT sensor circuit 1 HIGH).
2002 Saturn Vue 3.0L Fuel Gauge VIN: 5GZCZ63B52
Put in a new BCM and all is well.Only Gm can over complicate a fuel gauge.
1998 Subaru Forester L 2.5L Misfire VIN: JF1SF635XW
fist i want to say thanks 4 the help douglas you are the man i watched that circuit shut off then replaced iac valve and all is good thank you so much jimmy
1994 Toyota Camry 3.0L Cooling Passages VIN: J2ESV228H3
sorry it took so long but this vehicle was on the back burner while i took care of the daily workload in my one man shop. as a reminder this is a 1987 camry with a 3sfe 2.0 not a 94 v6. the cooling system is just fine after the treatment of clr i spoke of in t...
2006 Toyota RAV4 2.4L compressor VIN: JTMZD33V76
concluded that the compressor has failed. customer declined the repair. no fix. thanks for the info
2008 Toyota RAV4 Limited 3.5L Electric Magnetic Coupler VIN: JTMBK31V68
Thanks to those who replied The bearing noise I had was coming directly from the ft of the rear diff. out of the electro magnetic coupler. The ft bearing was bad in it..I could not find a replacement bearing anywhere. I installed a used diff w/coupler w/25k o...
2001 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWPD63B91
The problem turned out to be the timing chain tensioner was deffective. Replaced the tensioner and chain and that solved the problem. Thank you very much for yor help! Trouble codes: P0011.
2001 Volkswagen Passat GLS 2.8L MIL Lamp on VIN: WVWRH63B11
I really didnt do anything other then remove the LDP, test and reinstall it so even though the light is still off I am calling it "not fixed" for now. The replies can be summed up like this: 1)purge valves much more common than LDP assemblies. 2)tap test purge... Trouble codes: P0442.
2004 Volkswagen Jetta TDI 1.9L Misfire VIN: 3VWRR69M64
Thanks gents for all your help. Cam lobe wore off due to oil starvation. Customer is going to have head rebuilt with cam as a kit for approx $1500 vs new at $3000,i left the decition in his hands, not mine !! Thankyou. Trouble codes: 16791 (Egr sensor circuit b low), 16683 (Turbo underboost).
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