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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 18, 2008
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Open Help Requests for All Makes and Models
Help Request Answers
1993 Acura Legend LS 3.2L Misfire, MIL Lamp on VIN: JH4KA7678P
car came in missfiring with code 15.looked at alldata,they had me ohm testing wires that showed all checked good. i then replaced both parts, the ign. mod new from dealer and a used ecu. any and all help will be appeciated. Trouble codes: 15 (ign. signal output)
1994 Acura Legend L 3.2L pressures VIN: JH4KA7657R
this car came in a while back an a tech here replaced the evap core due to leak at the same time he did a expansion valve and drier car was gone a couple of weeks and back with complant of after diriving for a hour ac quits cooling got the car to act up and ho...
2000 Acura TL 3.2L Surge, Misfire, MIL Lamp on VIN: 19UUA5667Y
Vehicle has bad miss sometimes under light acceleration. Also at cruising speeds has a slight surge. Replaced all spark plugs with OEM brand and replaced cylinder 1 and 5 ignition coils. Still get a slight miss but cannot get a MIL, even after driving it for 2... Trouble codes: P0301 (cylinder 1 misfire), P0305 (cylinder 5 misfire), P1456 (evap. leak), P0300 (random multiple cylinder misfire)
2002 Acura MDX 3.5L Excessive Emissions, Hesitation, Misfire, MIL Lamp on VIN: 2HNYD18252
Vehicle has intermittent misfire on cylinder #1 and #4; tried new coils-no change. Freeze frame data shows misfire on cylinder #1 at 0 mph-idle. Short term fuel trim at -3.9 percent and long term trim at -4.7 percent. Intermittently you can feel mis-fire at fr... Trouble codes: P0300 (random misfire), P0301 (cylinder 1 misfire), P0302 (cylinder 4 misfire)
2001 Audi Allroad Quattro 2.7L air suspention VIN: WAUYP64B11
Hello adi techs !!! This audi came in to the shop with the air suspension lamp on.All four corners of vechile are bottom out. on visual inspect i can see that the lr air strut in completely deflatted and the other three have some air in them. the compressor d...
1998 BMW 740iL 4.4L airbag VIN: WBAGJ8328W
I removed drivers door panel and airbag to acess latch for outer door handle. After reassembly of door airbag light stays on ( and will not clear even after disconnecting the batery ). I did turn ignition on to move window position while airbag was not connect...
1998 BMW 328i 2.8L gauges VIN: WBABK7328W
Hi guys with BMW experience,have this 98 328is conv/car tow in water pump broken damage rad.replace all parts ,car would not start due to after market alarm(customer did not know about alarm)remove alarm car starts instrumet has no temp ,gas,rpm,odo also get m...
1998 Buick Park Avenue 3.8L High Idle Speed VIN: 1G4CW52K3W
The intake was replaced because it exploded. After the body shop installed the new one the vehicle wouldn't crank over. All the moduals communicated with the Tech II except the ECM. All the power and grounds checked so I bought a service unit from GM and insta...
1996 Chevrolet C1500 Suburban 5.7L Hesitation, Misfire VIN: 1GNFK16R6T
Help, my own truck is killing me! What started out as a very intermittent glitch that was barely noticeable has turned into cylinders misfiring and the truck still drives but is not much fun to drive anymore. I have mostly cyl. #4 misfiring but they all will d... Trouble codes: P0300
2000 Chevrolet Astro 4.3L RAP (retained acc. pwr) VIN: 1GNDM19W2Y
Main problem that I need help with is RAP (retained accessory power) system is not working. Followed flow chart to determine BCM is faulty. Replaced BCM and had reflashed without fixing problem. There is an update flash for the BCM RAP circuit, but no bulletin...
2001 Chevrolet Tracker LT 2.5L radiator VIN: 2CNBJ63471
Hello, hopefully someone has come across this before. Vehicle came in with a broken seam on the radiator, also had a brown sludge like substance in the radiator. I thought it was an trans oil cooler leaking on the radiator. So I replaced the radiator and t-sta...
2002 Chevrolet Malibu 3.1L Temp gauge VIN: 1G1ND52J22
the radio, A/C comp, temp gauge will go dead at times, can restart 10 to 15 times again before the problem reapears. Any time these systems are down if you use the power door lock switch they will all come back online. Checked voltages for power and ground to ...
2002 Chevrolet Express 3500 5.7L batt light VIN: 1GCHG35R92
Vehicle came in with an intermittent batt light on. Replaced alternator and it came back with same problem. After reading the posts on the aftermarket alternators, I replaced with another new unit. The alternators are "new generation" units that I have had ver...
2004 Chevrolet Silverado 3500 6.0L rotors pads calipers VIN: 1GBJC34U44
Hello fellow IATN members. We have a 3500 Chevy box truck. The truck is eating up rear pads rotors and calipers every 3000 miles. The truck returns to the shop with a blown out caliper and the rear disk rotors split into two pieces. Just wondering if anybody h...
2004 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC12F44
Here we go again.No start,Intermitant.this car will start for weeks at a time.seem to be losing power to fuel pump.no codes and when running 55psi fuel pressure.I was able to get a no start one time only and had no fuel pressure.next time turning the key start...
2004 Chevrolet Tahoe LS 4.8L vehicle is possibly in reduced power mode, but does not show on display VIN: 1GNEC13V34
need to know if anyone has dealth with such a problem, as mentioned in the repair history?
2005 Chevrolet Colorado Z85 LS 3.5L Radio/power windows VIN: 1GCDT136X5
After truck is shut off and all systems powered down.The Radio will power back up.The "Raps" (Retained Accessory Power Relay) is being powered back up so there is also power to the windows and wiper switch.Customer also complained of the horn honking on its ow...
2005 Dodge Caravan SXT 3.3L Misfire, MIL Lamp on VIN: 1D4GP25R15
Van came in from local used car dealer with SEL on and rough idle-lot owner said it ran good when he sold it but we have no history-buyer brought back the day after he bought it-the lot owner tried switching injectors with another cylinder-replaced coil pack-w... Trouble codes: P0300 (Random misfire), P0305 (Misfire 5 cylinder)
1994 Ford F-150 XL 5.0L water pump bolts VIN: 1FTEF15N8R
Morning all-This thing came in on the hook.The customer decided he was going to change his own water pump and save a buck or two.Well that ship sailed!Broken bolts and a broken T cover.My problem is trying to find the bolts.Ford cant come up with anything beca...
1994 Ford Ranger STX 3.0L No Start, Poor Idle Quality, Hesitation, Stall VIN: 1FTCR14U9R
Here is a strange one to ponder and I have a question as well. This little Ranger came in yesterday with a turn over no start after it was warmed up. It never really stalled it just didn't want to start back up after it was turned off. After confirming the pro... Trouble codes: 113 (Intake air temp input high), 118 (ECT input high), 122 (TPS low input), 123 (TPS high input)
1995 Ford Windstar GL 3.8L brakes VIN: 2FMDA5140S
This van came in with a complaint of soft, low pedal. The pedal was very low and soft. Adjusted rear brakes brought the pedal up very little. Replaced master cylinder to correct bleeddown. Ok, the pedal doesn't bleed down now, but still very low(almost on floo...
1996 Ford E-150 Econoline 5.8L MIL Lamp on VIN: 1FDEE14H6T
Hey guys, Last week this E150 came in with the check engine light on. Pulled code p0385, misfire dection sensor failure. Suggested replacing sensor. Back this week with same code. Did code reset and raised rpm's above 1500 three times, code reset itself. Check... Trouble codes: P0385
1999 Ford Explorer Sport 4.0L mil light for airbag VIN: 1FMZU24EXX
air bag light blink on took back to dealer couple days light came on dealer cleared out codes but still had a memory code B1994 B1869 dealer has no clue the snap-on com. B1994 DRIVER SIDE MNT ABG OPEN CIRCUIT B1869 AIR BAG WARNING INDICATOR LAMP CIRCUIT OPEN ...
2002 Ford E-350 Econoline 5.4L master cyl VIN: 1FDWE35L82
we replaced the master cylinder 4 times on this truck in the last 6 months the first three were remans the last was a new one. every 30 to 45 days this truck comes back with the front half of the master by-passing, we try bleeding it with a power bleeder each ...
2004 Honda Pilot EX 3.5L cant pump fuel VIN: 2HKYF18514
hello techs,im reopening this post please ready the info carefully.as i can only update once.this vehicle is a 2004 honda pilot,3.5-v6 auto.53,000 miles.the customers complaint is they can't pump fuel while at the gas station.the handle justs clicks and pump f...
1994 Infiniti Q45 4.5L Power Assist VIN: JNKNGO1D7R
I've learned quite a bit about this system working on this car. Basic complaint: power steering assist goes away after 5-10 minute drive. Let the car cool down, power steering works OK again for a few minutes. Mitchell, of course, has zero info. regarding Act...
1952 Jeep M38 134CID Wiring harness VIN: 0000228085
I have a nicely restored Willy's M38 Jeep here that was not completely reassembled. It is still a 24 volt system. The new wiring harness is in the vehicle, but not hooked up to much outside of the dashboard. All of the terminals of this harness have numbered a...
1993 Jeep Wrangler Sahara 4.0L trans shift VIN: 1J4FY49S6P
Having a problem with transmission hard to get into gear intermittently. Seems to be most noticeable in 2nd 1st and rev. Had trapped air in system and bled out worked good for few miles and same thing. The clutch kit and slave cylinder was put in about six mon...
2001 Jeep Grand Cherokee Limited 4.7L engine VIN: 1J4GW58N91
This jeep came to me with broken timing chain and cyl head damage. Replaced engine with used from 2002 Durango 4.7. Cranks like firing order is wrong and will not start although it tries to, and backfires through intake. Not setting any codes while cranking, b...
1992 Lexus LS400 4.0L Cuts out, Stall VIN: JT8UF11E7N
hello all .i have 92 lexus that seems to be cycling the fuel pump on then off again.car surges and dies at times .was diag be another tech for fuel pump.well i have been asked to look at to makes sure he was correct.so i researching this i find that it should ...
2003 Lexus GS430 4.3L timing belt VIN: JT8BL69S63
Hi All, I'm replacing the timing belt on this car (maintanance) and can't find any information in mitchell for cam seal replacement. I have the front portion of the gear off, but can't see how to get to the seal. I've noticed other posts on this subject and t...
2005 Lincoln Town Car Signature 4.6L vents VIN: 1LNHM81W45
There is no air flow from the dash vents, it will switch between floor and defrost. I can not find any postings or TSB's for this problem, have tested the body computer- no codes. Information hard to get. I do not want to explorer into the dash if I do not nee...
2000 Mercedes-Benz ML430 4.3L Misfire, MIL Lamp on VIN: 4JGAB72E9Y
This car started with just a slight misfire on accel and MIL light came on- it had 3 of the 4 codes listed above. We cleared the codes and road tested. #6 came back, we replaced plugs and wires on that cylinder and everything was fine. It came back missing wor... Trouble codes: P0305 (Misfire 5), P0306 (Misfire 6), P0307 (Misfire 7), P0308 (Misfire 8)
1998 Nissan Altima GLE 2.4L Starting VIN: 1N4DL01D8W
hey everyone i just installed a moter in this car and it wont start i have fuel spark and injector pulse ichanged plugs wires cap rotor and the distributor i have 150lbs compresson in3 cylinders and 100 in one it cranks fine sounds like it dont have fuel or sp...
2002 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31A62
2004 Nissan Frontier XE 2.4L Hesitation, Surge VIN: 1N6DD26T34
This is my truck. When taking off from a dead stop it has low power intill over half throutle then it takes off and runs normal But still not full power. I think it is the throutle switch. I was setting the timing and the switch was disconected to set the timi...
1984 Pontiac Fiero SE 2.5L Engine VIN: 1G2AF37R7E
This vehicle had the engine rebuilt a while ago and had been operating normally. The vehicle was invlolved in a collision and the engine saw very high RPM, according to the customer, due to the clutch having been depressed while the engine was floored. Since t...
1987 Saab 9000 S 2.0L Surge, Stall
hi saab tecs could sure use your help. this old beauty has been acting up for a while only now it is more consistent. upon cold startup the idle will fluctuate and then die. it takes several key cycles to get the car to idle, and as of late, its been really s...
1999 Saab 9-5 3.0L rev limits in gear VIN: YS3EF43Z0X
Good Morning!! Thanks in advance for your help. This vehicle if brought to approximately 4,000 RPM in any gear or neutral will rev limit by cutting fuel. RPM appears correct on scan tool, scan data shows correct gear selected. Due to the lack of information in...
1996 Subaru Legacy GT 2.5L connecting rod VIN: 4SEBK6755T
dissasembled motor and didn't note orientation of connecting rod I know what rod went where but not which side faced forward the dealer and manual said "mark faces front of motor " but which mark are they talking about is unclear if anyone has had one of th...
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG28K8X
hi tech, 99 camry setting code p0401 within 2 days after clearing. the egr is opening above idle and when i put vacuum on the egr the engine died at idle,which i believe a will functioning egr system.it look very basic system,but i think i'm lost on this one. ... Trouble codes: P0401 (insufient egr flow)
2001 Toyota Celica GTS 1.8L vvt-l VIN: JTDDY32T81
hello there---hope someone has seen this-I have a Celica gts with code 1693 VVT-L closing malfunction but I have a whine similar to a low P/S at the rear of the head where the VVT-L mech is located-anyone familiar with this? g
2000 Volkswagen Jetta GLS 2.0L a/c clutch signal VIN: 3VWSC29M7Y
vw techs. this jetta came in w/ no a/c concern. check of vehicle showed no power to comp. clutch. check of wiring diagram showed signal comes from cooling fan module.the power feeds on 14 pin t4 and t9 are fine. the ground on t6 is fine.all power feeds to the ...
2002 Volkswagen Jetta GLS 1.8L Blue smoke VIN: 3VWSE69M02
I think I have a bad turbo seal but would like another opinion. Under very hard acceleration, probably under max boost, I haven't checked, there is a lot of blue smoke out of the exhaust. It will actually lose power, make an odd "cracking" noise (this is the b...
1994 Volvo 940 2.3L Trunk latch/lock VIN: YV1JS831XR
The lock cylinder and mechanism sounds like it's working. The key lock feels as if it's rod is still connected to the latch. The problem is the handle rotted out and we can not get in to the trunk. Does any body have a way of "breaking-in" to the trunk that ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 328i 2.8L trans control module VIN: WBAAM5334Y
thanx to everyone who replied,all were good suggestions.Scott confirmed that the mdk was another term for the trottle body.i replaced it and it took care of 3 codes,then the cam sensor was replaced and all of the engine codes were taken care of.the trans compu...
1983 Cadillac DeVille 4.1L Hesitation VIN: 1G6AD6989D
1998 Chevrolet Malibu 3.1L #1 Misfire VIN: 1G1NE52MOW
Thanks to all the replies that I got. Many commented about problems with head gaskets. So while I had the intake manifold off I applied compression into clyinder through plug hole and gurgling can from coolant ports in heads. I pulled the heads and sure enoug...
2002 Chevrolet Silverado 2500 HD 6.6L No Start, Poor Idle Quality VIN: 1GCHK29112
Thanks to all the 11 chaps who sent in replies on this one,you were all bang on with your diagnosis a couple of injectors were leaking around the solenoid area, not easy to spot even with oil dye and a black lamp and flying blind without a Tech 2.The customer ...
2002 Chevrolet Impala LS 3.8L MIL Lamp on VIN: 2G1WH55K42
The vehicle is fixed,new MAf sensor cured it. As I said in my help request,I put a new pigtail on because the readings would be all over the board when I wiggled it. Readings were better after the pigtail,but it would sometimes read o grams per second after re... Trouble codes: P0102.
2005 Chevrolet Equinox LT 3.4L abs VIN: 2CNDL63F65
Well guys, Alex [...] had a great idea,(wish I'd thought of it, it seems so simple) swap l/f and r/f sensor circuits right at ebcm and road test to set code and see if it follows sensors. So that is just what I did. Drove vehicle 130 miles and no code return...
2008 Chevrolet Uplander 3.9L Reverse lights VIN: 1GBDV131X8
Thanks for all the help everybody. We installed a relay in the left rear corner of vehicle, used the key on circuit for the rear AC blower (Yellow wire) to energise the relay, connected the hot side of the backup alarm to the reverse light wire and grounded th...
2001 Chrysler PT Cruiser 2.4L shuts off VIN: 3C4FY4BB51
hey guys sorry it took so long to close this i was working on it mostly in between jobs. I recieved alot of great replys for this one. Robert from Texas was right about the fishy engine in this. It was actually from a 98 Stratus i found out( but it still work...
2000 Dodge Stratus SE 2.4L drive axle VIN: 1B3EJ46X0Y
Well friends this one was a situation where we dont know who else has worked on the vehicle.Anyways it happened to be the hub bearing on the left side.The customer had both front hub bearings replaced 6 months ago.Just goes to show that we never know what para...
2006 Dodge Charger SXT 3.5L cooling fans VIN: 2B3KA43G56
because of my concern about the 17.2 volts across the boost terminal i sent the car to the dealer where the diagnosis was both fan blades were broken and rubbing against the shroud causing the motors to burn up, dealer replaced the complete fan assembly (motor...
1991 Ford Ranger Custom 2.3L hard start VIN: 1FTCR10A3M
i tested fuel pressure it was good and some said pcv valve issues..i ended up putting a new iac in and on cold start up it ran good customer took truck and has been using for about 3 weeks with no problem. thanks to all that replied. Trouble codes: 41 (ego not switching).
2002 Ford Taurus LX 3.0L engine VIN: 1FAFP55U22
thank you to everyone who helped and gave their input. Out of the 43 replies that i got for this problem id say about 40 of them all said to check the cam syncro. All of you were right, thats exactly what it was. I cant believe that i have never run into this ...
2003 Ford Escape XLT 3.0L Misfire VIN: 1FMYU93193
I would like to thank all those of you who responded to my help request. Unfortunately I was not able to repair this vehicle. The customer decided to take the car to the dealer. This is what I do know about this vehicle. I had fuel and spark. the new spark plu... Trouble codes: P0300, P0304 (Misfire cyl 4), P0306 (Misfire cyl 6), P0316 (Misfire occurred in first 1000 rpm).
2003 Ford Taurus LX 3.0L climate control VIN: 1FAHP56S93
thank you for your replies. it does appear,like all of you said, that the dash control was at fault. i am really surprised that no more than 3 members had experienced this same problem. Ray
2005 Ford F-250 Super Duty Lariat 5.4L Hesitation, Misfire VIN: 1FTSX20565
Thanks to all that replied.After coming up empty,I thought I would retrace everything the other shop had done and see if they left anything loose or out of place.Turns out they did. After pulling on all the harnesses and vacuum lines,I checked all the Ignition... Trouble codes: P0301, P0305.
1992 GMC G2500 Rally STX 5.7L Poor Idle Quality, Cuts out, Stall VIN: 2GTEG25K2N
1995 GMC Jimmy SL 4.3L No Start, Cuts out, Stall VIN: 1GKDT13W5S
well, we ended up replacing the fuel pressure regulator. we drove this thing for about 20 miles without so much as a stumble. we let it sit and run for about a half hour and drove it some more. no problems. we asked the customer about the fuel filter and he ad...
2000 GMC Jimmy Diamond Edition 4.3L 4x4 light on VIN: 1GKDT13WXY
found some corrosion at module. replaced module and wiring pigtail. all is well now. thank you for all the replies.
2000 Jeep Grand Cherokee Laredo 4.7L cyl 7and8 VIN: 1J4G248N5Y
we took off the valve cover on one side and rocker fell off we put it back on and then did other side . same thing rocker fell out . but on the side of cylinder 8 the rocker did not fit in tightly like the other side on cylinder 7 . we put back valve covers a...
2001 Kia Rio 1.5L MIL Lamp on VIN: KNADC123X1
Kia is one pain when it comes to the turbine and vss sensors. The codes I had were one for each and after replacing the turbine sensor the vss came back yet the speedo and cruise were working. I sent it off the dealer for a computer reprogram and it is now o... Trouble codes: P0501, P0717.
1999 Lincoln Town Car Executive 4.6L a/c evaporator VIN: 1L1FM81W5X
Hey, thanks for all the information on removing the evaporator from this car. I had a hard time getting the side cover onto the housing but found a quarter inch wood shim pushed it away from the firewall and it snapped right in. Thanks
2001 Lincoln Town Car 4.6L Starting VIN: 1LMHM81WX1
vehcile had PCM flashed and started right up, not sure if it was the used IC that was put in the vehicle that put the pcm into antitheft mode. new PATS key was made also.
1992 Nissan Sentra SE 1.6L engine misfire VIN: 1N4EB32H7P
i am closing this because i have not had time to investigate further--we got really busy and it will be a while before we get back to it--THANKS for all that replied
2001 Oldsmobile Silhouette Premiere 3.4L cruise control VIN: 1GHDX23E91
Hey, all. I have found the fix thanks to your help. As I was removing the air filter box, I found 4 wires in the pcm harness that were rubbed through. I found this in the harness as it comes out of the pcm and loops to the inside of the left head light. I repa...
2001 Toyota Echo 1.5L Poor Idle Quality, Stall, Misfire VIN: JTDBT12381
Thank You for the excellant help. It turned out to have several problems. The first post on the vacumn leak was a good idea but I forgot to mention we had smoked it for leaks already. We replaced the vvt gear because it set the code and had a ratlle sometimes.... Trouble codes: P1349.
2002 Volkswagen Passat GLX 4 Motion 2.8L Poor Idle Quality, Cuts out, MIL Lamp on, EPC Light On VIN: WVWTH63B92
This vehicle was repaired with a new throttle body assembly. While several people reported these being available on the aftermarket, all of our usual sources were on a severe backorder, so we purchased one from Volkswagen (PN: 078-133-062-B). 3 of our 4... Trouble codes: 18265 (Load Signal Error Message from Engine Control), 17950 (Throttle Actuation Potentiometer Range/Performance), 18047 (Accelerator Pedal Position Sensor 12 Range/Performance), 17579 (Throttle Actuation Potentiometer Signal 2 Range/Performance).
2002 Volkswagen Beetle GLS 2.0L No Start, run circuit issue? VIN: 3VWCK21C42
Thanks to all that have helped with this. The intermittent "run circuit" problem was a wire to the ignition switch had corroded. I dropped the steering column trim and looked at the electrical switch for the ignition and found the wire that was not behaving. I...
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