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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 6, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
1994 Acura Integra LS 1.8L Cuts out, Poor Fuel Economy VIN: JH4DC445XR
Thanks in advance for your input. Diagnosing this '94 Integra 1.8L - Everything is stock. The condition is this engine will "cut out and in" when being run at 3500 rpm. Feels like a rev limiter. I have a immediate return DTC P0335 CKP Malfunction. I know th... Trouble codes: P0335 (CKP Sensor Malfunction)
1999 BMW 528i 2.8L Blower Motor VIN: WBADM5337X
I am reposting this bmw, i replaced the control head with a used unit after installing used unit it had codes 35,37,38,39,40,73,75,also the blower was inop but i could watch data on scan tool and it looked ok, i tryed to clear codes but could not so we sent cu...
2003 BMW 330Ci 3.0L A/C System VIN: WBABS53493
A/C pressure too high for this ambient temp of 97 degrees F, and there is NO cooling whatsoever. The Compressor turns on normally & is quiet, condensor fan is operating. I initially though the system was over charged so i evacuated, vacuumed, & recharged to sp...
2007 BMW 335i 3.0L fan always on high VIN: WBAWB73537
Hi guys, This 07 e92 had an EKP module replaced for low voltage to fuel pump and i programmed it with latest software using autologic. Voltage going to pump is now normal(12 volts), although current draw seems high at 12 amps and rpm is low as well at 6500 rpm...
2004 Buick Park Avenue Ultra 3.8L left rear power window VIN: 1G4CU54164
This 04 buick will intermittently roll the left rear window down with no input from any of the switches. there is usually only one person in the vehicle at the time it happens and he knows that he is not accidentally hitting the switch. we have never been able...
1961 Chevrolet Corvair Truck 95 2.4L clutch VIN: 1R124S1175
this is beyond my years...thanks in advance for reading this! I have a corvair that refuses disengagement. from all i can gather this is a later style clutch?? in that the flywheel is recessed and the p.p. is diaphram finger style with ring gear. the disc is 9...
1995 Chevrolet S10 LS 4.3L starting VIN: 1GCCS19W2S
Here we go. A week ago I changed the fuel tank due to a leak. With the age of the vehicle it seemed like a good idea to change the pump and sender too. Customer took vehicle no problems till today. They went to the store and when they came out it wouldn't star...
2001 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7GG26X41
Hi fellow techs. Iv'e got a winner. Throws throttle code all the time. I have tested harness mutiple times for shorts to power.Cleaned and load tested all grounds to PCM and engine to body. Cleaned batt cables tps signalwire has 5.0 volts unhooked from sensor.... Trouble codes: P0123
1988 Ford Bronco II Eddie Bauer 2.9L Contamination VIN: 1FMCU14T2J
Last year we flushed the cooling system because it was contaminated and sludgy. We put new antifreeze in after the flush and sent the car out. It has come back now with the same contamination in the cooling system. We have run a block check on the system and ...
1992 Ford Explorer Eddie Bauer 4.0L 3-2 Downshift VIN: 1FMDU34X0N
Customer seldoms drive vehicle but says that if you let it shift up to 3rd, come off throttle and reapply, it downshifts to 2nd and stays there for some time. Replaced valve body, modulator, vac hoses, grind down pin 60 thousands and then installed c-3 modulat...
2003 Ford Explorer Limited 4.6L air box
Hi Everyone. I have this explorer that intermittently has a very loud vibration of the air filter box. It does it at idle and driving along. The vibration will come and last about 10-15 seconds and go away. Once it does go away the idle drops and fluctuates fo...
2004 Ford F-150 XLT 4.6L Timing chains VIN: 1FTRF12W74
Iím about to replace the timing chains and related components including the cam sprockets on this 4.6L engine. The factory manual says to first remove the camshaft roller followers, I assume to prevent the valves from hitting the pistons while doing the job. I...
2004 Ford F-150 Lariat 5.4L Stall, MIL Lamp on VIN: 1FTPX12504
vehicle came in not running had broken rocker arm lifter and bent valve. remove pass head machined the head and replaced cam full valve job piston had light shallow scratches dare to say gouges on top but very light. replaced all guides and reused chains and t... Trouble codes: P0340
2006 Ford Freestyle SEL 3.0L Limp Mode VIN: 1FMZK02176
This cvt transmission will randomly drop into limp mode. cycle the key, and it will drive fine. has codes p0641, u0001, u0101, and u0401. seems like the tcm (inside the mechatronic unit in transmission)? or could it be in the harness to the pcm? this car has 1...
2008 Ford Crown Victoria 4.6L rear wheels VIN: 2FAFP71V98
This car has me stumped, under hard braking the rear wheels lock up. You can hear the pump turn on when the wheels lock up but it doesnt release the rear wheels. The car goes into a slide untill you let off the brake. Scan tool shows good wheel speeds, fronts ...
2009 Ford F-150 Platinum 5.4L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FTPW14V19
This vehicle came in for a check engine light. Ran codes and found that it was running rich, checked fuel trims and long term both banks was at -25% short term fuel trim was at -5-8%. While looking through data I found the PID for alcohol was at 77.1% alcohol.... Trouble codes: P0172, P0175
2002 GMC Sonoma SLS 4.3L No Start VIN: 1GTDT13W82
This truck has been by us now 3 times and is driving me bonkers. Every time it comes in it is a no start but it starts every time I try it. Customer states that it starts and dies muliple times with no security lite and no codes. If it sits long enough will re...
2005 Hyundai Tucson GLS 2.7L Speedometer/Odometer VIN: KM8JN12D55
Once again thankyou all for your time, we have this tucson that reads way slower and way less miles than it should.. The pcm, trans and abs read accurate. However the bcm and speedo are approximately 25% off. We think its in the bcm. We are going to try and up...
1991 Jaguar XJS Classic Collection 5.3L Poor Idle Quality, Surge VIN: SAJTW4845M
Customer stated that once his vehicle warms up, the rpm will rev up to 3000 and down to 800 really. While driving on city speed, you don't even have to step on the gas, vehicle will go on its own slowly increasing the speed. I did try to warm up the vehicle, p...
2008 Mazda 5 Sport 2.3L steering wheel shake VIN: JM1CR29308
a short history, at first this vehicle would randomly start shaking at highway speeds, it seemed to happen more when going up a hill and with slight turning of the steering wheel. he had 4 new tires installed on the vehicle, still shakes, he had 2 new frt rims...
2004 Mercury Mountaineer 4.0L fill up VIN: 4M2ZU86K24
HELP!!! boss needs this one fixed asap Vehicle has already been sold. will not accept gas from gas pump. have replaced charcol cannister and vent valve. checked fill tube and found restriction(debris of some sort) freed up restriction and still no fix. any ide...
2002 Nissan Maxima SE 3.5L No Start VIN: JN1DA31DX2
ok here it goes were so confused at this point,this car was towed in to our shop a day ago for a cranks but wont start, customer was driving this vehicle wwent into a store when they came out it just cranked but would not start,the service engine does NOT come...
2004 Nissan Xterra XE 3.3L A/C Compressor & Low pressure hose VIN: 5N1ED28T84
Hello Nissan/ A/c Guru's, Have a strange one here. This Nissan Xterra for some reason freezes the low side line while driving. At idle it doesn't do it. Only when the Rpm kicks up. I figured it was the thermo switch in the evaporator case. In the past I have h...
1997 Plymouth Grand Voyager SE 3.3L No Start VIN: 1P4GP44R6V
Help I have been working on this vehicle trying to find a intermittent driveability problem. Every once and awhile the engine would mis-fire and sometimes backfire. Pryer to this visit I had already replace the crankshaft sensor. The fuel pressure was good wit... Trouble codes: P0171, P1494, P1495
2004 Saturn Vue Red Line 3.5L AC Compressor Operation VIN: 5GZCZ63414
I have this lil Cruck beating me down, hoping someone can help. This Trucks AC Compressor won't stay engaged if the Blower Speed is set at anything greater than speed 2. The AC On/OFF Switch snowflake will light up on Blower Speed 1 or 2 and the AC System work...
2000 Toyota MR2 Spyder 1.8L No Start, Cuts out, Stall, MIL Lamp on VIN: JTDFR3202Y
Vehicle came in with no start concern. Found will start cold but once engine heats up, engine will die. If I try and restart without shutting key off, engine just cranks won't start. If I cycle key to off then attempt to restart will crank and start then die r... Trouble codes: P0351
1999 Volkswagen Jetta GLX 2.8L Surge, Cuts out VIN: 3VWTE29M2X
customer compains of no power and stalls and runs rough. scan codes and diffenent codes appear every time. these codes seem to come back everytime..checked fuel pump relay circuit. seems o.k. but having a hard time reading schematics to find what voltage shoul... Trouble codes: P0343, P0102, P1425, P1435, P1115, P1639
2000 Volkswagen Beetle GLX 1.8L MIL Lamp on VIN: 3VWDD21C2Y
Car came from auto auction with coolant in the oil with evidence of previous cylinder head repair (hack job) just performed, cylinder head bolts were loose ect. Removed head and sent to machine shop to be pressure tested, resurfaced, valve job ect. Installed h... Trouble codes: 17748 (VW code crank/cam allocation)
2001 Volkswagen Jetta GLS 1.8L Starts And Stalls VIN: 3VWSC29M71
This vehicle sits for a 6-8 hour peroid and will start then stall imediately,you can not press accelerator to keep it running.I've towed it into the shop and start and runs perfectly! The check engine light is on and we cant scan to ECM or any modules.There is...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 323i 2.5L Misfire VIN: WBAAR3341Y
Well, we still have not fixed this vehicle. I had several replies to this that included looking into the mechanical condition of the vehicle, using a different brand of coils, checking the wiring harness and the crankcase vent system. The owner of the vehicl... Trouble codes: P0303 (Misfire Cylinder 3), P1250 (Fuel too low), P0304 (Misfire Cylinder 4), 1E, F0 (Misfire Cylinder 3), F1 (Misfire Cylinder 4).
1998 Chevrolet Monte Carlo Z34 3.8L Rocker Arm VIN: 2G1WX12K5W
Fixed: We replaced the oil filter with OEM PF-47 and went to 10w-30 from 5w30. Next test drive no more noise. Thank's for all your help
2000 Chevrolet Tracker 2.0L Brake "rattle" VIN: 2CNBJ13C5Y
Thanks to all who have replied, I greatly appreciate your assistance. One item I had failed to mention is that the tires are pretty fresh Uniroyal Tiger Paws and were rotated when I did the L/F caliper & anchor & R/F hardware, and the problem still sta...
2008 Chevrolet Cobalt LT 2.2L Remote door VIN: 1G1AL58F88
Well after a couple of sleepless nights I got it and it was a fact of trying to get things done to quickly. Thanks Matt I plugged in the old bcm and checked my rpo codes and found that I accidently selected a RPO that I shouldnt have. Thanks for the insight...
2001 Chrysler Town & Country EX 3.8L HVAC Blower VIN: 2C8GP54L41
Thank you for the advice. We were able to replace the blower and electronic resistor without removing dash.
2007 Chrysler PT Cruiser Touring 2.4L Cooling Fan VIN: 3ABEY58B87
The problem was a bad new part right out of the box. Thanks for all of your replies, some of you however need to read the orginal text a little closer. Too many suggested what I had already done. Thanks again.
1999 Dodge Ram 2500 5.9L Power Steering VIN: 1B7KF2360X
Thank you all again for your time and input, Sorry to take so long to close. We got alot of replys that this is normal condition with this rig, also got a reply of an aftermarket pump with higher pressure. unfortunately someone at the shop deleted it while we ...
2008 Dodge Ram 2500 SLT 6.7L Door Locks VIN: 3D7KS28A28
Thank You to all that replied! This was fixed by installing a brand new cluster from Dodge however i ordered the new cluster with the "highline" option ( power locks, keyless entry, etc) New cluster came programmed, plugged it in and everything worked as it sh...
1991 Ford F-150 Custom 5.0L 2 ,3 shift and up VIN: 1FTEF14N1M
thanks for every one . i had good fun with this truck. remove trans send to trans shop came back after 7 days reinstalled back together. no change in shifting. call trans shop said remove valve body send to tans shop they send another used valve body reins...
2000 Ford F650 7.2L charging VIN: 3FDNF65A6Y
Well, I havent "Fixxed this one yet. It is a Fleet Vehicle, and has not returned to me yet. On a Brighter note... it is STILL Running! Thank you for all of your help! IATN Is Awesome! Fred
2001 Ford Ranger XL 2.3L Surge, Misfire VIN: 1FTYR10D91
Thanks to all that attempted to help- all ideas you sent were followed up on plus a bunch of our ownwith no positive outcome. The customer will live with this slight surge untill it gets worse and hopefully at that time we will see a change in data that will p...
2005 Ford F-450 Super Duty Lariat 6.0L shift solenoid a VIN: 1FDXF46P55
Thanks to those who replied and got me back on the right track with this one.Randy nailed it with it being a hard part failure,it was a break at the laser weld in the coast cluth drum below the piston.Hydraulic pressure could not apply clutch piston due to maj...
2005 Ford Excursion Eddie Bauer 6.0L No Start, Stall, Misfire, MIL Lamp on VIN: 1FMSU45P85
This truck has not acted up since I opened this request. Thanks for all the help and I will post further when it does act up. Trouble codes: P0269 (Cyl 3 contribution/ balance fault).
2006 Ford F-150 XLT 5.4L steering has no assist VIN: 1FTPW14536
Thanks to everyone for the advice. I ended up installing another Cardone rack. It's been a week and so far no complaints.
2006 Ford Escape XLS 2.3L Poor Idle Quality, Hesitation, VIN: 1FMCU02Z96
Hey guys thank you for your input. While I was working on the vehicle I had been suspecting that the ignition timing was incorrect but I couldn't find the info I needed to verify it. So I checked the mechanical timing and it checked out ok. I smoked the intake...
1991 Honda Accord EX 2.2L Seems to be in limp home VIN: 1HGCB7668M
Sorry I am late closing this help request I wanted to make sure that the repair worked during the time I was on vacation. I have called the customer and they said that the trans. and the car are working fine. Then I got an ear beating on the fact that I marke...
1997 Jaguar XK8 4.0L Cuts out, Stall VIN: SAJGX2743V
The problem is apparently not very common based on the replies. I have not had a lot of time since I posted to spend on this car. but the main thing I have found is the problem seemed to go away when I disconnected the wiring to the alternator and allowed it... Trouble codes: P1609 (internal fault), P0200, P0100, P1300, P2100.
1999 Jeep Grand Cherokee Laredo 4.0L Unknown VIN: 1J4G258S3X
Thanks for all of the replies. It turns out that the crank sensor shorted and shut down all communications with all modules Again thanks for all the replies
2008 Lexus RX350 3.5L Tpms VIN: 2T2GK31UX8
My tech installed the new factory sensor in #3 tire and still couldn't get it to initialize. He tried jumping the correct pins in the ALDL with no good result. I took it to the Yota dealer and for $80, they fixed it. We need to get better at this stuff fast.
2003 Lincoln LS 3.0L bangs into reverse VIN: 1LNHM86S63
thanks to all for the great info this one is fixed we sent pcm to a local rebuilder got it back i istalled it same problem.very fustrated i called my local ford dealer and orderd a oe one put it in programed and that fixed it thank you all neal [...]
2002 Oldsmobile Intrigue GX 3.5L System Flow VIN: 1G3WH52H12
Thanks to all for the help. This customer has decided not to fix the car,We have found that there is no blockages,Flushed entire system with nitrogen. The compressor worked on the original car but mabey not good enough. (lesson to self:DON'T PUT USED COMPRESSO...
1998 Subaru Legacy Outback 2.5L air bag VIN: 4S3BG6853W
We did replace the control module and it solved the problem. Did not get anyone reporting they had the same problem and fixed it with a control module or replaced the module and it did not fix it. The consensus was if you have the code, replace it.
2004 Volkswagen Jetta GL 2.0L no communication VIN: 3VWRK69M44
Well this one is finally fixed but not soon forgotten. thank you for all the replys and the info on the k-line. Sorry for taking so long to post on this, this is one of our used car and was purchased from auction in very rough shape (it has not had an easy ...
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