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Prev Professional Automotive Repair Technical Discussions for October 3, 2011
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Help Request Answers
2007 Audi A4 2.0L Unknown VIN: WAUAF78E47
First this is a CVT trans. Customer complaint was car felt like it was slipping in gear. I drove the car and felt nothing the first time .The second drive going up hill at about 60 mph it felt like the car came out of gear for a few seconds then went back into...
1997 BMW 740iL 4.4L Stall VIN: WBAGJ8329V
HI guys this car when get in hot after (30 mail) loos the power & shifting problem ( time)& you have to drive with sport gear
2004 BMW 525i 2.5L Cuts out VIN: WBANA53574
The customer states that this car is cutting out at idle and will restart, and while driving on the highway the rpms will drop and he said it feels like the brakes or something is holding it back. I can't fault it at this tme. Last week he brought it in with t...
2005 BMW 525i 2.5L KL15 is not being switched in the CAS VIN: WBANA53525
Customer compalint is the car has no crank no start, cluster is blank and only has the key symbol showing when you try to start the car. Also the Control Display (CD) is blank and at times the when you push the button on the MASK radio the CD will work for a...
2005 BMW 645Ci 4.4L Battery VIN: WBAEK73435
Hey fellow techs. Got this 05 BMW 6.45 Ci, towed in. Customer stated vehicle needs a battery. Verified problem, needs battery to start with. Talked with BMW parts to order a battery, was told by parts guy that battery needed to be coded to vehicle otherwise wo...
1995 Buick Riviera 3.8L PCM Failure VIN: 1G4GD2216S
We have been working on this Riviera for years, and it still is in good shape.The problem has been repeat PCM failures. First we had a start and stall problem with a code P0101. 2nd we had no alternator output. 3rd we had no cruise control. PCM replacement has... Trouble codes: P0101
2007 Cadillac DTS 4.6L right power window VIN: 1G6KD57YX7
The right passenger window works intermittantly. Replaced driver's master switch. Works intermittantly on both switches. No dtc's in bcm.
1993 Chevrolet S10 Blazer 4.3L Surge VIN: 1GNCT18Z8P
Hello fellow Techs. This S10 Blazer has been in and out of several shops and almost every thing has been done. The condition is @ 37 to 40 mph and about 1700 rpm you feel a slight surge condition. You can power through it and you don't feel it before or after ...
1996 Chevrolet Astro 4.3L No Start, no serial data VIN: 1GNDM19W2T
this van will not start in moist conditions. it however will not run now. found there to be no fuel pressure. checked for good connection on all components ie relay center, fuel pump. all good. no power going to pump (2 sec pulse or on crank.). oil pressure se...
2000 Chevrolet Malibu 3.1L 7x crank VIN: 1G1ND52JOY
no signal at 7x crank signal to ICM. New sensor, harness to ICM Ohmed good no spark no start. 24x sensor data consistant need to find signal to start sequence all live data within specs ecept 7x software has b een updated(flashed)
2000 Chevrolet K3500 5.7L No Start, 6 Ignition Modules VIN: 1GBJK34R3Y
This is my first go around with this truck - Since new engine was installed 2 months ago, the truck has gone through 6 ignition modules. It has new secondary components, cap rotor wires plugs & coil. Has solid ground at module terminal C. Charging voltage is 1...
2003 Chevrolet Silverado 2500 HD 6.6L dome lights VIN: 1GCHK23103
left rear door ajar on all the time dome lights stay on also checked lf rear door sw with ohm meeter and check good-door switch is open when door is closed and ground or closed when door is open the rt rear door checks the same if i check volts with a meeter o...
2005 Chevrolet Astro 4.3L Blower Motor VIN: 1GCDM19X35
Blower motor not working on high. Checked out all components and no other problem found. Power going to harness but not going to blower motor on high.
1994 Dodge B250 5.2L no tcc engagement VIN: 2B6HB21Y3R
I am working on this van that came in for front brake repairs. While it was here customer complained of no tcc engagement. I checked for codes and found none. Looking at scanner to see if the tcc was being commanded I noticed crazy data info on the display e.g...
1999 Dodge Intrepid 3.2L 2-1 Down Shift VIN: 2B3HD56J7X
Intermitantly hard down shift from 2nd to 1st ck data stream 3 times and all is will shift perfect for 3 weeks then he will get a hard downshift from 2nd to 1st then all is good for awhile.wish i hard more info but that's all iv got at this time.
2000 Dodge Grand Caravan 3.3L cooling system VIN: 1B4GP44R0Y
Hello again This 2000 dodge grand caravan came in overheating only under load, guage will go up to 3/4 of the way. At idle temp guage is perfect. Performed head gasket check looking for carbon in cooling system, fluid did not change color indicating it is not ...
2000 Dodge Grand Caravan SE 3.8L No Crank No Start VIN: 1B4GP44LXY
We thought that the alarm had been set so we locked and unlocked the van the van started right up and we called a happy customer and sent him on his way. Well it got towed for 30 miles to the shop this morning and a not as happy customer said that they tried e...
2000 Dodge Grand Caravan 3.3L trans not shifting VIN: 2B4GPB4G0Y
car came in on hook for no start ,,found bad fuel pump got it started after test driving engine light came on and trans started not shifting..hooked up solus scanner found p0750 l-r solenoid problem...i cleared codes but it comes rght back after driving...i tr...
2005 Dodge Grand Caravan 3.3L A/C lines VIN: 1D4GP45R15
Does anybody have the part number for the rear a/c evap delete kit? I couple people on IATN are claiming that it is available from the dealership and caps the lines under the passenger floor board. Also include new stickers. Thanks in Advance, Chris
2005 Dodge Caravan SE 2.4L Interior Lamps, Radio, Doorlocks VIN: 1D4GP25R05
need help on this one, this 05 caravan has electrical issues, the radio does'nt work at all, has nothing, the electric doorlocks will only work with the key on, the interior lamps wont work when you open the doors unless the key is on, when you turn the key to...
1999 Ford Mustang SVT Cobra 4.6L Oil Leaks VIN: 1FAFP46V0X
Good morning fellow IATN Techs. I have here a 1999 Cobra with a Naturally Aspirated 4.6L 32 Valve 4.6L engine that is showing signs of oil leaks. I see coming from the passenger side of the vehicle, below the exhaust header. Its dripping oil onto the starter, ...
1999 Ford F-150 5.4L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 2FTRX18COX
Truck has a very rough idle and customer says that the idle drops at stops. I cant verify the nearly dying at stops. After intake gasket repalcement the only dtcs to come back were p1131 and p1151 o2 indicates lean with p0401 egr insufficant flow. Before gaske... Trouble codes: P0171, P0174, P1131, P1151
2000 Ford Windstar 3.8L illumination/dimmer VIN: 2FMZA5J47Y
Thanks to all reply's in advance. The instrument and control [radio, light switches, headlamp switches, etc...] illumination lights are always on. Dimmer has no effect at all for illumination lights, even when unplugged. Instrument panel has no codes. Code wi...
2003 Ford F-150 XLT 4.6L No Start VIN: 1FTRW07613
I am a Volvo mechanic and not familiar with the Ford systems, this is a family members vehicle. After a hot soak it is a crank no start. Turn the key, fuel pumps buzz and the vehicle will start and die. Fuel pumps do not continue to run after ignition. Vehicle...
2004 Ford Expedition XLS 5.4L starter VIN: 1FMZU72E54
hi guys i have this exploer in the shop for a no crank problem i can jump the starter relay and it will crank it seems i am not getting the ground signal from the pcm so i checked the wire from the pcm to the relay and that is good also the voltage from the tr...
2005 Ford F-350 Super Duty Lariat 6.0L Misfire, hard cold start VIN: 1FTWX31P05
This is a good customer he has gas vechiles that I work on for him. I'm not right up on diesel so any help that you can give me is great thanks. On this truck when it is cold it starts hard and runs runs ruff and has no power until it warms up then runs good I... Trouble codes: P0266 (cylinder 2 contribution balance)
2005 Ford F-250 Super Duty XLT 6.0L Hesitation, Surge, Cuts out, Misfire, bucks VIN: 1FTSX21P25
hi all 6.0 ford diesel guys kinda need some help. customer said that this truck shakes when driving up hills when i drove it up and down some hills for about 24 mins eventually it will start to buck and jerk or the best description i have is that it shakes lik... Trouble codes: P0341
1999 Honda Civic DX 1.6L Misfire VIN: 2HGEJ6612X
pulled valve vover and checked for week valve springs. No week valve springs. Trouble codes: P0301
2003 Honda Accord EX 2.4L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 3HGCM56373
This honda came from another shop. They replace used engine. Runs rough and rich. There is code po122,po108,po113. Replaced map sensor from old engine. Did not make any diference.remove spark plugs all plugs were black runs too rich. No response on throtle. An... Trouble codes: P0122, P0108, P0113
2002 Hyundai Elantra GLS 2.0L Shifting VIN: KMHDN45D72
Two days after changing the transmission fluid with Hyundai SPIII and replacing the front brakes and cv axles, the transmission started shifting very harsh, both upshifts and downshifts. The mil is not on, but I can't check for codes because the ecm will not c...
1999 Jeep Grand Cherokee Limited 4.0L security system VIN: 1J4GW68SXX
This Jeep sets the above codes and intermittantly will have a start stall caused by the skim security system. The security light is on some and off some. I have checked the wiring in the column and connections. All appears ok. I have wiggle tested the wiring a...
2006 Kia Optima LX 2.4L MIL Lamp on VIN: KNAGE12386
We checked the Oil Control Valve and it appears to be operating (we pulled out and inspected no debris on the valve and actuated it manually both out of the car and with it running. Note engine did die at idle.)Internally this engine is clean after we pulled t... Trouble codes: P0011 (a camshaft position-timing over-advanced or system performance bank 1)
2006 Lincoln LS Sport 3.9L Power Windows VIN: 1LNFM87A26
Vehicle came to us with passenger door power window which will auto up but than come down aprox. 4 inches. Even if you hold switch in the up position, same symtom happens. Tech. went threw reprogram procedures with same symtom. No service codes present. Data s...
2002 Mazda 626 LX 2.0L Trans VIN: 1YVGF22C12
When in drive or reverse there is a loud constant clicking noise from the left front axle input area. This will do it on the rack while brakes applied and steering wheel in any position. We replaced the axle with a new axle with no change. Replace the trans wi...
2003 Mercedes-Benz ML350 3.7L No Start VIN: 4JGAB57E13
Hello MBZ Techs, We have got a winner with no codes to lead us in the direction. We have a situation where the car quite and was towed in to our shop. We hooked it up to our DAS and we have no codes... the car cranks but doesn't fire. We have fuel pressure and...
2003 Mercedes-Benz E500 5.0L Malfunction VIN: WDBUF70J83
Vehicle came from another shop, they tried to reset the "Service Inspection" somehow they did not clear anything but managed to get more info on the display. Display in cluster - "Main inspection performed on time ?" & "Emmissions Inspect. Performed on time?" ...
2005 Mini Cooper S 1.6L Starting VIN: WMWRH33545
Vehicle was driven into the shop, the customer stated the wipers were going off and at random without doing anything. He stated that he replaced the battery. The car has never started for me since it got to the shop,won't crank. I pulled codes and there is no ...
2008 Mini Cooper S 1.6L Glass VIN: WMWMF73518
Hello tech's., We had a mini come in ,we serviced it, did brake's all good . Customer call's back ,"ever since you worked on it my driver's side window is down about an inch when I come out to drive it after it's been parked for a few hours". Any ideas what m...
2010 Mini Cooper 1.6L Poor Idle Quality, Stall, MIL Lamp on VIN: WMWMF3C5XA
Hi thanks in advance for any help. We got this 2010 MINI in with the N12 engine. Customer complained of stalling, code P0015. Clear it and immediatly returned after short drive. Intermittantly the idle will surge, missfire and stall. Swapped exhaust cam sensor... Trouble codes: P0015 (Exhaust cam over retarded)
2008 Nissan Altima S 2.5L master cylinder VIN: 1N4AL21E38
The problem started with a sinking pedal, we install an aftermarket master cylinder and bleed the system the old way rr lr rf lf stll no pedal, Replaced the master cylinder again, and this time we bleed the system with a vaccum tool,we got two wheels to work b...
1991 Pontiac Firebird 3.1L #4 Cyl VIN: 1G2FS23TWM
This one has me stumpted,engine runs rough,cyl balance 0 rpm drop on number 4 cyl all other cyl's are ok. As stated compression test on #2 145 psi #4 155 psi #6 140psi All new injectors, replaced cyl#4 injector 3 times. Noid light shows good signel on all inje...
1999 Saab 9-5 2.3L Starter VIN: YS3ED58E2X
This one is for the Saab electrical guys out there. I have this very good Saab customer that is having random starting issues, namely no crank. Customer lives many miles away and drives constantly. We have been trying to narrow down a potential cause to go aft...
2004 Volkswagen Golf R32 3.2L fuse 37 VIN: WVWKG61J14
Hi, thanks in advance for your help. This car blew fuse # 37 when the customer came to pick it up(after I had test driven many miles of course). Car wouldn't restart, no communication between modules, no ck engine light. I assumed that it had to be something I...
2000 Volvo S80 T6 2.8L Long crank to start VIN: YVITS90D2Y
Car came in with an excessive cranking time to get the car started. About 13s to be exact. We checked all the basics and found that while cranking we did not get injection pulse or spark and then out of nowhere it starts and runs great. While running the cars ...
2004 Volvo S80 2.5T 2.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: YV1TS59H34
Kind of an odd one here. When driven under light to moderate load the vehicle exhibits a minor lack of power, no codes stored at this point. But, if you take it out on the road and floor the accelerator for about 200 yards it will cut out. At 4700 RPM, like cl... Trouble codes: ECM, 982A

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 BMW X5 3.0i 3.0L Poor Idle Quality, MIL Lamp on VIN: 5UXFA53592
Thanks to all that replied, especially Justin, Thomas and Vadim who were right on about the DISA valve on the side of the intake and the possibility that the valve could leak with vac. and not pressure from the smoke machine. The shaft was broken and a 4th smo... Trouble codes: 202 (Bank 1 control limit), 203 (Bank 2 control limit), 227 (Bank 1 range exceeded), 228 (bank 2 range exceeded), 238 (through 243 misfire on each cylinder).
1972 Chevrolet El Camino 5.7L Misfire
Ok so the old addage goes keep it simple stupid.You guys were spot on with the vacuum leak .It wasn't external the trans modulator was pulling fluid into #5 and 8 causing the miss. It wasn't enough to smoke but enough to cause a miss.The pcv was also bad and t...
1996 Chevrolet Camaro 3.8L Excessive Emissions, Misfire VIN: 2G1FP22K7T
I could not find solid evidence of what was causing missfire on this one. I did do cylinder leakage test on #1cyl - only 8% leakage. I swapped wiring from #1 and #3 injectors, miss still stayed on #1. Like a lot of you I feel like it had to be a valve train pr... Trouble codes: P0300.
2004 Chevrolet Malibu 2.2L ignition lock cyl VIN: 1G1ND52F84
Thanks for all the replys. Most suggested what I had already done, which was to lightly tap on the key while turning...I should have mentioned that when I posted. I have done that many times before on other cars and it worked great. Not sure what this custome...
2004 Chevrolet Silverado 2500 LT 6.0L air bag light VIN: 1GCGK23U04
I posted this and cust was supposed to come back, however, he has not as of yet returned. as he and his whole family are customers, I am sure will see it again.. as for your replies, thank-you, but cannot apply them at this time. pretty sure that it however on...
2002 Chrysler Voyager 2.4L speedometer VIN: 1C4GJ25362
The cause of no communication with TCM was broken wire on circuit A104. After repairing broken wire I then had communication with TCM & transaxle was no longer in limp-in mode and shifted normally but speedometer still didn't work. After digging a little dee...
1997 Ford F-350 XL 7.3L brake pedal VIN: 3FEKF38F4V
Thanks to all for your help. We used a hand held vacuum bleeder. We did seam to get a good pedal. There must have been some air traped in the lines somewhere. Either way it`s fixed. Thanks again.
2003 Ford F-350 Super Duty Lariat 7.3L autolamps VIN: 1FTSW31P63
well all of you said i twas behind the radio and sure enough it was, someone had the dash out put some extra sound insulation in after digging it out i replaced it anything works great one side note this truck also has a gem module located...
2005 Ford Expedition Limited 5.4L Excessive Emissions VIN: FMFU18505L
Most all of you said check the injectors as this year and model are known for injector failures. Following Martins advice, We simply lifted the injector rail up, cycled the key and wola the #8 injector is spraying a steady stream. Recommended replacing all t...
2005 GMC Sierra 2500 HD 6.6L Black smoke VIN: 1GTHK23295
I can't explain why but killing #1 cylinder with snap on modis and a borrowed tech II would stop the engine smoking. replaced injector and problem persisted. After strugling for three weeks to find out problem with #1 cylinder and found everything to check out...
2003 Jaguar S-Type 3.0L transmission VIN: SAJEA01T63
Thanks to all who replied on this one. Turns out the J Gate Assembly had a bad circuit board causing the "wont come out of park" condition. Called the dealer to order one and was told by the parts guy that it was a common problem. The part comes as a complete ...
1990 Nissan Pathfinder XE 3.0L starting system VIN: JN8HD17T0L
Thank you to all that replied. We found that it had a old aftermarket alarm system installed. Prior to removing it we found that the fusible link was burned out. It went from the battery then from their it goes to the ignition(black/yellow wire)by the steering...
1995 Pontiac Firebird Trans Am 5.7L Misfire
ok, so a lot of you thought it was the distributor. so after the appropriate testing and your input i decided to go there. after removing the cap i could see where it was cross firing. replace and rotor and it runs like a champ again. thanks
1999 Saab 9-3 2.0L passenger belt tensioner VIN: YS3DD58N6X
This customer has not returned so... ykwim I got some very good tips from several people. Pete [...] told me about a replacement harness from the dealer but the price was stupid money and cust passed. Justin told me about a WIS bulletin about a side a...
2003 Toyota Camry LE 2.4L Mechanical VIN: 4T1BE32K33
Thanks guys for the quick responses. I took the valve cover off and got to one of the head bolts and found that it was loose. We removed the head and replaced all the head bolt threads with time serts. Both the block and head were flat. I ordered the kit loc...
1999 Volkswagen Passat GLS 1.8L Drive-axles VIN: WVWMA63B9X
I appreciate all the input on this one. We ended up putting the other axle in the vehicle and recommended motor mounts. I inserted some rubber exhaust hanger under the oil pan to help with the vibration. This helped so the customer is coming back for the mo...
2006 Volkswagen Passat 2.0T 2.0L Rear Brakes VIN: WVWEK73C96
Thanks fellas. All exellent replies and helpful. I came in the morning and played with the ebrake button and they unlocked. I drove it and all good. I have learned something new for sure.
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