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Prev Professional Automotive Repair Technical Discussions for February 26, 2010
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Help Request Answers
2003 Acura MDX 3.5L PCM communication VIN: 2HNYD18673
The two main issues with this crank no start vehicle is immobilizer light flashing and no pcm communication. As you already know the immobilizer cannot be reset without communication with the pcm. One Honda tech told me if the immobilizer is bad it can shutdow...
2002 Audi A4 Quattro 3.0L Misfire, MIL Lamp on VIN: WAULT68E72
Hello Audi specialists. This Audi is driving me insane. I'm running out of ideas and I need your help. This car will set misfire codes for the left bank only. Usually for cylinders #4 & 6, sometimes cylinder #5 too. The coils have been replaced by the dealer a... Trouble codes: P0304 (Misfire Cyl 4), P0306 (Misfire Cyl 6)
2003 Audi A4 Quattro Avant 1.8L Cooling Systems VIN: WAUVC68EX3
Hello Techs We have an Audi here that is driving us crazy.It came in with a complaint of engine overheating.After running the engine in the shop for a short time(less than ten minutes)the temp gauge would go all the way to hot.The system was full of coolant w...
2004 Audi A4 3.0L Hesitation, Misfire, MIL Lamp on VIN: WAULT68E44
looking for some help with this audi lack of power misfireing onn bank2 intake manifold runner was stuck vacuum actuators inop., replaced intake driver unit cleared all codes misfire codes and lack of power come right back. found compression higher on bank 2 t... Trouble codes: P0300, P0304, P0305, P0306, P1147 (oxygen sensor regulation bank 2), P1130 (fuel trim bank 2 lean)
2006 Audi A4 2.0L oil level warning VIN: WAUBF78E86
We've replaced the engine in this car because it had one burned valve in #4 and a heavily score cylinder in #2. All went well and the car runs fine. However, the engine oil level message lights up, but ONLY when a gear is selected. It goes out again when Park ...
1995 Buick Regal Gran Sport 3.8L Mechanical VIN: 2G4WF552L0
Hello fellow techs. Hopefully someone can shed some light on this problem child. The car came in with a severe oil leak. Found that timing cover gasket was leaking. Replaced timing cover gasket. Also replaced front crank seal, oil pan & gasket. After reassembl...
1997 Buick Park Avenue Ultra 3.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4CU5211V
For a short while customer complained that in wet weather it would buck and misfire on occasion. It needed a tune up and I found arcing and deterioration of the coil pack so I replace all three with module, wires and plugs.(fuel and air filter was done last mo... Trouble codes: P0300 (Random cylinder misfire)
2005 Buick Allure CX 3.8L Stall VIN: 2G4WF532Y5
At this time, vehicle of course not acting up, only code is the above for bank one sensor one o2, problem is intermittent stall, happens on startup, happens when slowing down, no regularity to the problem, may not act up for weeks, settles right down after res... Trouble codes: P0131
2000 Cadillac Seville STS 4.6L Parasitic Draw, Batt dies in 2 hours VIN: 1G6KY5496Y
Around every three minutes the fuel door will pop open and the draw will go to 1.8A. The battery has been replaced, main battery ground cleaned and secured under seat, positive terminal is tight and clean, cleaned connection at battery junction box under the h...
2001 Chevrolet Prizm 1.8L Wipers VIN: 1Y1SK52801
Toyota techs please help me!!! This Prizm is one of our own, The wipers will turn on with out warning and then run constanly. If you turn the wipers on they also will never shut off. Sometimes its good for days other times the wipers are on right after start u...
1999 Chrysler Town & Country LX 3.8L Electronic VIN: 1C4GP64L5X
About 5000 miles ago the transmission was replaced, shortly after the customer returned complaining that the vehicle would not shift out of second gear and the speedometer and tachometer would jump also the engine would seem to skip, it does this intermittentl...
2005 Chrysler Town & Country LX 3.3L No Start, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C4GP44R35
All Chrysler techs--help. Van came in yesterday on a tow truck with complaint of no start. Sent a bunch of kids out to push it in. Ended up starting right up and he drove it in. since then it has started everytime we tried it. Drives good as well. Check engine... Trouble codes: P0129, P0300, P0068, P2074, P0344
2008 Chrysler Sebring 2.4L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1C3LC46K08
The customer states the vehicle will run fine and ocassionaly kill when started or while coming to a stop. The concern seems to be intermittent. When the concern is happening the vehicle at times will restart and other times will only crank with a no start con... Trouble codes: P2107 (Electronic Throttle Control Processor)
1999 Dodge Ram 1500 Laramie 5.9L No heat VIN: 3B7HF12Z7X
I've got this dodge pickup that won't get warm. It runs between 155 and 160 degrees. My scan data matches the gauge preety well. It's got a code for the engine stays cold too long. when it's 40 degrees outside it'll keep it warm in the truck, but when its in t...
2000 Dodge Neon High Line 2.0L No Start VIN: 1C3ES46C3Y
Vehicle died while driving,it will not crank most of the time. At times it will try to crank but sounds like starter is kicking in and out, asd relay sometimes rattles some times nothing. I can not communicate with PCM,service engine light is as intermittent a...
2003 Dodge Durango SLT 4.7L Temperature VIN: 1D4HR38N83
We have this Durango that will not blow cold out of the passenger vents and blows cold out of the drivers vents but not cold enough. It has the dual zone controls. We have replaced all 4 actuators with no improvement. We have evacuated and recharged the system...
2000 Ford F-150 5.4L Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy VIN: 1FTRX17L0Y
this truck is kickin my a@#. so far it only has an evedent problem when its cold, )40 f. it idles rough, as if to have a vaccum leak. but i have tried every trick in the book to find one and cant, i have checked all the usual suspects to no avail. pcv hoses, e...
2001 Ford Taurus SE 4-Valve 3.0L neutral at stops VIN: 1FHFP55X2G
This one is new to me. When vehicle warms up and you come to a stop idling in drive, the car will go out of gear and back in and out just sitting there. It will go in when you step on the gas and it bang in kind of hard. The transmission shifts great in all th...
2004 Ford F-150 FX4 5.4L fuel gauge VIN: 2FTRX18W24
the fuel gauge (analog) reads half tank at all times. we removed the tank and tested the sending unit and it tested good for the correct ohm's readings when placed in the full and empty positions. no broken baffle's in tank all wiring seems clean and not damag...
2004 Ford Explorer XLT 4.0L abs module VIN: 1FMZU73K74
car came in for abs light. codes in system u1900 controlr area network communications receive malf. b2900 vehicle identification number missmatch p21o6 throttle actuator control system forced limited power. i have no communication to abs module
2004 Ford Crown Victoria Police Interceptor 4.6L No Start VIN: 2FAFP71W14
Car came in for no start.Car cranks but wont start.Have fuel pressure No injector pulse or spark.What strange is when you turn key on check engine light flickers as does battery light and fuel pump stays on.Isc motor also makes a clicking noise.Disconnect isc ...
2006 Ford Expedition XLS 5.4L Surge, Cuts out, Misfire, MIL Lamp on VIN: 1FMPU175X6
TEST DROVE, RESET P0305 QND P0171 ON HARD Accel. bucks. pops, skips on wide open throttle. #5 compression 125 psi running. Customer(used car dealer) wanted Ford dealer opinion, Ford reccomended all plugs and coils after diagnosis. We replaced all plugs with fo... Trouble codes: P0305 (misfire 5 under load), P0171 (lean bank 1 under load)
2006 Ford F-150 XLT 5.4L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1FTPX14586
Hello to all and i want to say thanks to everyone's help up front. This truck actually came to us with a drivability concern of a misfire when accelerating under heavy load. We had to try for over an hour to get it to set a code. We've got a p0307 and trying t... Trouble codes: P0307
1999 Jaguar XK8 4.0L Srs VIN: SAJGX2040X
Aloha, Just replaced the evap core in this xk8, now we have a srs light on for low battery voltage ( also flashes a code 12) no info on mitchell as to what code 12 is, but the ids says the restraint module has a low battery fault. Probably just because i had ...
2002 Jaguar X-Type 3.0L head gasket? VIN: SAJEA51C82
This vehicle smokes white on cold start up. Runs poorly for the first minute. Vehicle runs normaly after that. code P0171 is the only generic code reteived. I applied 16psi to the cooling system overnight, no pressure drop in the am & no coolant in the cylinde...
1992 Jeep Wrangler 2.5L clutch VIN: 2J4FY19P1N
i have a 92 jeep wrangler that drives perfectly normal cold but once it gets completly warmed up the clutch wont release. the pedal feels normal. But with the pedal down and the engine running you cant shift the trans. I have replaced the master cylinder think...
2002 Jeep Liberty Limited 3.7L side mirrors VIN: 1J4GL58K92
Help Jeep Techs! This jeep came back from the dealer for cylinder head/ gasket replacement (severe overheat) with side view mirrors inoperative. After a period of time the mirrors would move in and out but not up and down. Now the driver side functions properl...
2005 Jeep Grand Cherokee Limited 5.7L starter VIN: 1J4HR58225
Howdy Boys n Girls, Very good custome comes in once a year or so to have every thing fixed/maintained on his vehicle. This is the first time we have seen this truck. He called and said it wouldnt start but Auto Zone said his battery was fine. We towed it in an...
2005 Jeep Grand Cherokee Laredo 4.7L tpm VIN: 1J4HS48N35
This Jeep has intermittent TPM fault indicator. The only code is C1504 tire pressure sensor 4 internal fault. Sounds simple enough, ordered a new sensor from dealer, but that is where simple ends. I am having trouble identifying location of sensor 4. I removed...
2003 Kia Optima LX 2.4L No Start VIN: KNAGD12603
Customer brought the car in, running fine, wanted spark plugs installed and a power steering leak checked out. I replaced the plugs and then the car wouldn't start. I found that there was no spark out of the plug wires. There were no codes but the scan tool wa...
2004 Kia Sedona LX 3.5L evap codes VIN: KNDUP13104
I have an evap code p0446. I have performed all the electrical and diagnostic procedures that KIA has set forth on their tech website. The pscv and ccv valves have been checked and replaced with new parts from kia and problem persists. All of the harness conne... Trouble codes: P0446
2001 Mazda Tribute DX 2.0L MIL Lamp on VIN: 4F2UU07B71
e Hello All, This Mazda came in for an emission failure - scan pcm and find one code stored - PO453 - Fuel Tank Pressure Sensor High. Replaced in line pressure sensor, cleared codes and code PO453 comes back with in a few minutes of driving. Scan to pid read ... Trouble codes: P0453
2002 Mazda MPV LS 3.0L Egi Inj Fuse VIN: JM3LW28A42
This is my brothers van. Just stalled one day and wouldn't restart. I checked the vehicle and found the EGI INJ slow burn 40amp fuse burnt. When I test the circuit it has a dead short to ground. If I pull the engine fuse it is no longer shorted, however I beli...
2006 Mercury Mountaineer Premier 4.6L Misfire VIN: 4M2EU48846
2006 Mercury Mountaineer Premier AWD 4.6L 3V Vehicle exhibits: -Misfire like symptoms on cold start up (about 10 seconds then clears up) -Very intermittently, will be running fine then misfire for a few seconds and then run fine again.(usually around idle - ...
2006 Mitsubishi Lancer Evolution MR 2.0L Steering gear? VIN: JA3AH86C46
Hello Group, We replaced the clutch in this car in october 09. The owner lives in LA, and we're in Oregon. He called today complaining that there was about 3" of play in the steering wheel and it makes a clunk when he hits a bump while turning. He thought we ...
2000 Nissan Maxima GLE 3.0L Speedometer VIN: JN1CA31D9Y
The speedometer doesn't work on this car. I have checked power and ground to cluster and all are ok. I did the diagnostic check and all gauges sweep. This car does not have a speed sensor in the transaxle. Alldata shows pin 15 on the cluster going to the speed...
2001 Opel CORSA C 1.4L Cuts out, MIL Lamp on VIN: WOLOXCF081
Hi,Members This 1 came in with SES Light ON and the customer explain me that sometimes before stopping the car the engine start to surge and immediate stop - but she could start it again. I used my scan tool and got these DTC's - P0400 and P1405. I found that ... Trouble codes: P0400 (EGR system-flowmalfunction/hoseleakblockage...), P1405 (Exhaust gas reciculation valve position sensor malfunction)
2000 Pontiac Grand Am SE 3.4L Cooling Systems VIN: 1G2NF52E4Y
Hi,need some help have this pontiac came back to me twice owner says it will overheat on them sometimes,I have not got it to overheat on me I can turn fans on with scanner low speed and high. When I hold rpm over 2000 in bay within 5 minutes at 219 degrees ste...
1999 Saab 9-5 2.3L unknown VIN: YS3ED45E1X
This vehicle has low air flow in all positions, only when the engine is running. When engine is not running, just key on, air flow seems to be ok at all positions. Start engine and air flow will drop very noticably at all positions, floor, defrost, or in your ...
2001 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZH52811
this is the third time this saturn has been in for check engine light in a year.all three times it has been smoke tested.first time it tested tight,and customer indicated that she might have fueled up a couple of times with car running.she didn't realize that ... Trouble codes: P0442
1997 Subaru Impreza Outback 2.2L MIL Lamp on VIN: JF1GF4857V
light is on with code p1507 idle control system malfunction, checked for any air leaks did not find any , replaced idle air control valve like computer said to , the car will run great as long as the engine light is off, as soon as it comes on it starts runnin... Trouble codes: P1507
2008 Subaru Impreza 2.5i 2.5L Heater VIN: JF1GDG6755
Thanks for reading this post... This Impreza has very poor heating at best. Blower works fine. Heater core seem quite hot(Painfully hot) to the touch, (you can feel the pipes and part of the end tank). However actual heat coming out of the vents is poor at bes...
1997 Suzuki Sidekick JLX Sport 1.8L Hesitation, Cuts out, Stall, MIL Lamp on VIN: JS3TD21V1V
Hello looking for suzuki help. This sidekick with 1.8l engine was running badly, no power on accel intermittant stall and rough run also miss fire,Installed new plugs and corrected miss fire, engine code 103 mass air sets and engine quit when wiggle testing ma... Trouble codes: 103 (mass air high)
1996 Toyota Corolla 1.6L No communication VIN: 2T1BB02E7T
Our customer brought this car in because it failed the OBD2 I/M emissions test for a "communication failure" fault. We scanned the car with a Snap-On Modis and Launch Infinite and had no communication difficulties whatsoever. We were able to read codes (none),...
1996 Toyota 4Runner 2.7L valve train VIN: JT3HN86RXT
is there any tsb's or known issues for valve noise on this motor, anybody know of problems.i am pulling my hair out,vehicle was noisey when it came in for head gaskets.also found right intake cam advanced one tooth.reset timing during head gasket repair adjust...
2001 Toyota 4Runner SR5 3.4L No Start VIN: JT3HN86RX1
thanks in advance for your help. does this vehicle have an inertia switch like the fords? component locator in mitchell doesn't list one for this car. if so, where is it. crash wasn't bad enough to set off airbags. damage was limited to the right front turn si...
2002 Toyota Highlander 2.4L Stall VIN: JTEGD21A02
Here is the deal. This truck will start and run/idle fine 90% of the time. Intermittently when you go to start the truck it will start but immediately die/stall.This will happen after it has been driven and reached running temperature sometimes and sometimes i...
1984 Volkswagen Vanagon Campmobile 1.9L 3rd gear VIN: WV2ZB0257L
hello. This is my personal van. I have attempted a rebuild on this transmission due to a problem with first gear not engaging properly. After finding a bad accumulator cup o ring I replaced that and did the friction disks as well. The problem I am having now i...
2005 Volkswagen Golf GL 2.0L MIL Lamp on VIN: WVWZZZ1KZ5
Hello Fellow spanner turners, dont do many Golfs and this one is giving me a hard time. It is a 2.0 litre FSI Direct Injection model with BLX engine.In the course of work carried out fuel pressure regulating valve, situated in high pressure fuel pump,was unnec...
2003 Volvo XC90 T6 2.9L skids inoporative VIN: YV1CZ91H53
One owner car; the transmission went into limp in and indicator went dark. Customer complains of shifting to park and still being in drive. Shifts normal after restart. Came in with error message for skids, at times the error for brake system failure appears. ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 BMW 330i 3.0L Hesitation, Surge VIN: WBAEV53433
With Dustin's help, it put us in the right direction. The intake air control valve was not working, and needed replaced. also the inside of the intake was filthy. customer approved valve but not the fuel induction service. problem seems to be 98% better. with ...
2003 Chevrolet Silverado 2500 HD 6.6L Misfire VIN: 1GCHK23163
Well I was able to finish the diagnostics, the company decided not to replace the faulty radio so I reinstalled it leaving it unplugged. Now that I could run an injector balance test the results were almost no smoke with #4 injector cancelled. I think that #4 ... Trouble codes: P1223 (injector 1 driver circuit voltage), U1800 (pcm lost communiction with ficm).
2005 Chevrolet Venture LS 3.4L rf speed sensor VIN: 1GNDV03E95
HI guys sorry for the delay. Thanks to all who took the time to reply it did turn out to be a break along the wire harness to the rf wheel speed sensor. Problem is now solved thanks again to every one who provided help.
2008 Chevrolet Trailblazer LT 4.2L remote security VIN: 1GNDT13S58
Thanks to all; As most replies suggested I had the programming done at the dealer, as my scan tool would not do the job. I did get a couple that said some could be accessed though dash controls, but I already had the job done so I did not get to find out. I wi...
2008 Chevrolet Silverado 2500 HD LT 6.0L Turn signals VIN: 1GHCHC29K6
Thanks again for you reply. Chester and Dusting mentioned the BCM. The BCM has individual power for each of the turn signals so I went and check all the voltage coming out from the BCM to the turn signals and guess what, there was no voltage to the front right...
1998 Dodge Stratus 2.4L charge/ battery light VIN: 1B3EJ46X1W
got the light to come on finally, checked voltage at alternator was charging good, 14.8, but reading from modis from pcm was jumping from 13.8 to 15.2 very erratically, switched ign off and back on voltage showed steady at 14.4/14.8. replaced pcm with a rebuil...
2005 Dodge Durango SLT 5.7L light on VIN: 1D4HB48DX5
thanks to all who replied-in talking to dodge there is a recall on that instrument cluster (service writer i spoke with had no info as to why) so off to dodge it goes, but the odd thing is this vehicle was not equipped with tpms (by the vin !!!), thanks again ...
2001 Ford Escape XLS 3.0L Unknown VIN: 1FMYU04161
Still no fix. We loosened ALL mounts, put in drive and reverse a couple times, and retightened mounts. Vibration is still there. Noticed that vibration is also there in park just gets worse in drive and reverse at idle so I am wondering if problem is not mount...
2003 Honda Odyssey EX 3.5L leaks oil VIN: 5FNRL18973
I first want to thank John from CA, who was first of three to suggest that we had stripped head bolts. Turned out we had four that were bad at the rear of the head. I asked him what he did and he put helicoils in the holes. This is a rather tricky job to do...
2004 Hyundai Sonata 2.4L Timing belt VIN: KMHWF25S24
Found that replacement NAPPA belt was shorter that the oe in the NAPPA timing belt kit. After engine ran tensioner measured .260" OEM manual spec is .220" to .350". Timing belt was a lot harder to put on than the first one. Now doing battle with Gates rep. C...
2008 Infiniti EX35 3.5L Cuts out VIN: JNKAJ09E78
Thanks all of you for any help especially to James [...] who addressed the problem! It was sticky exhaust VVT unit who is not hydraulic like all other variable camshaft systems. This one has magnetic clutch and it only retards camshaft when powered. Advance i...
2002 Jeep Liberty Sport 3.7L 1-2 shift VIN: 1J4GL58K22
Continued to trace wiring and found part of wiring harness that runs under radiator with black electrical tape. Turns out vehicle was in accident several years ago. Found corroded wire, repaired and restored trans controls. Thanks!
2004 Kia Sorento LX 3.5L Poor Idle Quality, MIL Lamp on VIN: KNDJD73324
The customer has decided to drive the car and see if the problem gets worse or better. The hard start after warm soak issue has corrected itself. Will post any information if the problem gets worse or the customer returns the car for further testing. Thanks to... Trouble codes: P0305 (Misfire 5).
2004 Lexus LX470 4.7L horn VIN: JTJHT00W74
So some guys asked if I had checked the clock spring YES We did But what I ACTUALLY asked is this "we think it is soldered to a circuit board IS THAT RIGHT ??? ANYONE ??? ANYONE ??? " NO ONE actually answered the question... a simple YES !! THE RELAY IS IN...
2002 Mazda Millenia S 2.3L engine VIN: JM1TA22292
ok found noise to be is supercharger had to borow a set of electric ears from a buddy, road tested and at 3krpm noise we were hearing is from supercharger. cust is going to get rid of car they have invested to much into it this year. thanks so much for all o...
2000 Mercury Sable LS 3.0L No Start VIN: 1MEFM55S1Y
ok this one was crazy...i changed the cam and crank sensor just for the heck of it,the junk yark engine had looked as if it had sit for awile so i took the plugs out of the old motor and put them in the new engine and begain cranking after running the battery ...
1999 Nissan Maxima GLE 3.0L Misfire VIN: JN1CA2107X
Thanks to all who responded. Replacing the ignition coils solved the problem.
2001 Nissan Altima GXE 2.4L MIL Lamp on VIN: 1N4DL01D51
sent car to dealer for flash update...car has not reset p0134 and does not run rough after cold start like it was...still has the bias voltage , though...if it resetes code ,computer will be replaced Trouble codes: P0134.
2006 Nissan 350Z 3.5L flywheel VIN: JN1AZ34D56
everyone was right about the small dowel and we must have not noticed this because we were trying to hurry. second time around we could tell we were wrong and i made the assumption that the flywheel would only bolt up 1 way. thanks for all the help. sorry abou...
1997 Oldsmobile Aurora 4.0L Misfire, Poor Fuel Economy VIN: 1G3GR62C9V
thanks to everyone who replied. i cleaned the inj. fuel trims are almost normal.missfire are gone.i told customer to drive it for a week then bring back.will ck.fuel trims again.may also clean inj.again. thanks to everyone. Trouble codes: 300 (missfire).
1997 Suzuki Sidekick JX 1.6L Engine timing VIN: 25STD03V6V
Well this was a strange one, I did have the timing ok as per the book. The fuel pump died in the middle of the job. The first time I checked I had perfect pressure and volume. Finally after getting frustrated I went back and started again from square one, this...
1998 Toyota Camry LE 2.2L alarm VIN: 1T12345849
believe security module to be problem was getting ground signal at module when cycling drivers door lock cylinder to unlock. so what I did to fix was bridge unlock input for right and left door at module this would disarm alarm and unlock all doors at with onl...
1999 Volkswagen Jetta GL 2.0L starter VIN: 3VWRC29M8X
I should apologize for not posting more detail on this Jetta. Some people were confused about early 1999 Jettas vs late 1999 Jettas, this being a later model. Some people thought I had a starter problem instead of a comfort module problem. In any event, the...
2001 Volkswagen Passat GLS 1.8L Reverse VIN: WVWVD63B11
Thank you to all that supplied help. The vehicle had internal transmission damage that was not noticed during any of the previous O/H. Customer choose to not have additional repairs done to the vehicle.
2000 Volvo V70 X/C AWD 2.4L poor acceleration VIN: YV1LZ56D4Y
found main power cable going to fuse box in engine compartment was over heated due to poor contact which there is a tsb on this but also the wire melted into wire leading back to engine ecu causing 90% of the running problem the car still has a intermitent pro...
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