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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 29, 2005
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Open Help Requests for All Makes and Models
Help Request Answers
1994 BMW 325i 2.5L trans VIN: WBABJ6327R
A4S-310R trans (GM- made in France- used on some other vehicle brands as well- Isuzu Rodeo I think) goes into limp-home mode and kicks MIL on: recently stored codes 40 (pressure regulator: break or short in wiring or defective valve winding) and 30 (kick-down ...
1999 BMW 323i 2.5L Rotors VIN: WBAAM3334X
Customer purchased car with 45k. At 60k he ran over a bunch of pipes that fell out of a truck on freeway.Insurance paid for refurbished wheels. Customer drove and car had vibration driving and braking. Took car to dealer and all 4 wheels where replaced. On the...
2001 BMW 318 1.8L Heater Fan VIN: WBAAL32080
Hi We have a 2001 BMW 3 series with digital type AC. With heater unit turned on at any temp, with Auto on or off,with AC on or off,with heater fan speed at any speed the fan runs full speed, if you switch the fan speed right down, AC unit switches off & fan s...
1995 Buick Riviera 3.8L Twilight Sentinel and Auto headlights VIN: 1G4GD22K6S
Headlamps work in manual mode but not in automatic mode and Twilight Sentinel does not work.The headlight switch on this car grounds various outputs from the Lamp control module.The ambient light sensor changes resistance from around 1000 ohms with a flashligh...
1987 Cadillac Seville 4.1L bcm VIN: 1G6KS5189H
87 seville instrament panel, radio, and some bulbs on the i/p flicker when the doors are shut (key out of ignition. checked powers and grounds, inputs and outputs of bcm. other tech had swapped a central power supply (no help) i put a bcm in it (no help). a ...
1988 Cadillac Eldorado 4.5L Surge, throttle sticks VIN: 1G6EL1158J
I have been trying to locate a problem on a 1988 Cadillac Eldorado for quite a while. While cruising, usually at 40 - 55 mph, throttle will stick and sometimes actually accelerate on its own. Vehicle also sometimes surges at cruising speeds. Both problems are ...
2001 Cadillac DeVille DHS 4.6L class 2 data VIN: 1G6KE57YX1
Please help! Can anyone tell me where I can find a wiring diagram for the class 2 data line on this HIGH end cadi. Or at least a list of all the modules/devices it goes to. This car has been a real nightmare from the beginning. Not only is there several thous...
1993 Chevrolet C3500 Cheyenne 6.5L MIL Lamp on, VIN: 1GDJC34F9P
I need the terminal location for the TPS signal @ the ecm. Alldata has many choices but unfortunatley none are correct. It is a dark blue wire @ the TPS. The computer is behind the glove box.
1996 Chevrolet C1500 Cheyenne 5.0L Cuts out VIN: 2GCEC19MXT
Hi guys, I am the technician working on this vehicle (under Randy's account) This vehicle is being a real challenge...It is a Vortec 305 that runs and drives with normal power but experiences a very brief "cut out" intermittantly. This is not just a 1 or 2 c...
1998 Chevrolet Camaro 3.8L No Start, Stall VIN: 2G1FP22K8W
This vehicle has a no start problem. The problem began as an intermitent problem and now it will not start at all. Replaced the fuel pump and fuel pump relay. The fuel pump gets the pulse voltage with key on engine off sequence. I hot wired the fuel pump to ru...
2000 Chevrolet S10 4.3L 4 wheel drive VIN: 1GCCT19W1Y
vehicle does not shift into 4-hi at all and will only shift into 4-lo sometimes. we strongly suspect the dash switch but don't want to just throw parts at it. anybody exerience this before??? no other symptoms.
2001 Chevrolet Silverado 1500 5.3L can't reprogram pcm VIN: 2GCEC19T11
i have recentley purchase the gm reprograming software from spx otc for the 2004 genysis. after installing the software and reading the directions. i attempted to update current program on this vehicle. during the update an error message no comunication at ste...
2001 Chrysler PT Cruiser 2.4L driver pdl VIN: 3C8FY4BB31
Hey all you Chrysler techs! We got this '01 PT Cruiser in here. The driver door lock switch locks, but does not unlock. The passenger door switch will lock and unlock with the button and the keyless fob will do both also. We threw a new driver door lock switch...
1991 Dodge Stealth 3.0L No Start VIN: JB3XD44S4M
I drove the car a few days with no problem till I started to back out of the driveway and it died. It cranks, has ignition, has fuel correct fuel pressure but no injector pulse. Scan tool says no codes present. I have 12v at the injectors, 5v reference is good...
1993 Dodge Grand Caravan SE 3.3L Hesitation, Surge VIN: 1B4GH4435P
Vehicle has a bad hesitation/stumble when cold. With temp. up to normal it runs just fine. Had egr codes etc. replaced egr assy. purge solenoid, and did a tune up because it had never had one...173,000 miles. Anyway, when I got done I was sure it was the egr c... Trouble codes: 32 (egr circuit), 32 (egr circuit), 31 (purge solenoid malfunction), 47 (charging syst. low output)
2000 Dodge Intrepid 2.7L Misfire VIN: 2B3HD46R9Y
This Intrepid misses when cold. It seems to be #4 cylinder. The coil and injector both seem to be triggered (checked with a noid light) but we replaced them anyway. Compression test OK. All 185#. It seems to stop missing after about one minute. When the fuel i...
1995 Ford Explorer Eddie Bauer 4.0L transmission VIN: 1FMDU34X1S
Good morning i have 1 from local transmission shop, they have rebuilt the transmission. the problem is when driving at freeway speed and push down on gas the trans will come out of overdrive as it should, but if you press down enough for passimg gear the trans...
1997 Ford Taurus GL 3.0L cam position sensor VIN: 1FALP52U9V
Check engine light came on and found to be cam position sensor malfunction. Replace the cam sensor and still have check engine light on. Disconnected battery and cleared with scanner - but still have check engine light come on. Have replaced DPFE sensor per...
1997 Ford F-250 XL 7.3L No Start VIN: 1FTHX26F9V
Hi to all, This is my first post since I joined so please excuse any mistakes & any advise is welcomed. I have a no start on this Power Stroke. Engine cranks ok. I check glow plug relay which customer replace befor I got to the vehicle & found all signals o...
1998 Ford Contour LX 2.5L belt VIN: 1FAFP66L7W
hi fellow techs, let me thank you in advance for any help. car came in a couple of months ago for a not charing concern replaced alternator, and everything was fine. vehicle left, it came back yesterday with a complaint of thumping noise at idle when warm sta...
2002 Ford E-350 Econoline Club Wagon XLT 5.4L rear brakes VIN: 1FBSS31L42
Good afternoon, Brakes on this van feel and work normal untill multable stops are made. Then when coming to a stop, just before stopping, under moderate to hard braking, the brake pedal will drop slightly and there is a corisponding clunk in the rear brakes. ...
1998 Hyundai Tiburon FX 2.0L 1st Gear Only VIN: KMHJG34F8W
Hello Fellow Technicians, This vehicle was towed in due to the fact that it has only 1st gear. The vehicle will not attempt to shift to 2nd or beyond. There is also no reverse. Scanned for trouble codes and found none present. The fluid was at specified level ...
1998 Hyundai Elantra 1.8L reverse VIN: KMHJF24M4W
Hi to all tech's I have no reverse on this car & customer says he had no preliminary symptoms before loosing reverse. I checked shift solenoid a & b after performing code diagnostics & found solenoids had proper resistance & are clicking when appling voltage....
2000 Hyundai Sonata GLS 2.5L Cuts out, Stall, MIL Lamp on VIN: KMHWF25V8Y
Wondering if anyone knows what the undocumented codes mean? We believe the U code is related to the computer communication system. Intermittent ability to communicate with the trans system. Trouble codes: P0740, P0335 (crank pos sensor fault), U3118 (undocumented code), C0307 (undocumented code)
1988 Jaguar XJ6 3.6L pinion flange/seal VIN: SAJHV1644J
The Pinion flange on this jag is three fingered for a rubber disc type flex joint but is represented in the book and on Alldata as being held to the pinion in a very conventional fashion, ie: a large nut in the center of the flange that threads on to threaded ...
1996 Jaguar XJS 2+2 4.0L Poor Idle Quality, Surge, Stall VIN: SAJNX2746T
First of all I will apologize for this long post. This vehicle was repaired as mentioned above and has never ran correctly since put together. I can not tell you what caused the fire in the first place but it was concentrated around the right side firewall a...
1994 Jeep Grand Cherokee SE 4.0L No Start VIN: 1545464616
i hope someone can help. i have a jeep cherokee whenn cold it will not start. when its cold it will not fire up the asd relay. on the harness side the green and orange wire flashes ground with a power probe when i put a little heat by the distribtor the relay ...
2000 Lexus LX470 4.7L Auto Height Control VIN: JT6HT00W5Y
I am unable to get this Auto Height Control (AHC) to actuate. I have followed the owners manual procedure. The light for low or high just flashes depending on which switch I push. I have made sure to not have the brake pedal depressed and 4WD is in 4H. If I ma...
1991 Lincoln Mark VII LSC 5.0L master VIN: 1LNCM93E2M
The brake pedal is soft (normal) when the car is cold. Drive car a few miles and the pedal becomes hard.
1995 Lincoln Continental Signature 4.6L trip/odometer VIN: 1LNCLM97V8
1996 Mercedes-Benz S420 4.2L MIL Lamp on VIN: WDBGA43E6T
Hi, Everyone I have this Mercedes s420 that won't set OBDII ready. Keeping setting code P0410-air system malfunction. Checked and diagnosted air system-ok but when I manually induced air in exhaust system, I noticed ONLY bank 2 sensor 1 response to air induc... Trouble codes: P0410 (secondary air injection system malfuntion)
1999 Mercedes-Benz C230 Kompressor 2.3L transmission VIN: WDBHA2460Y
Not my most familiar brand, nor am I a trans tech. Have car overnight. It came in with tranny in limp mode; no upshift, shows 2-wrenches icon at odometer. 36400 appears next to wrenches. Little square PRNDL window never shows a gear indication, but all segment...
1999 Mercedes-Benz E320 4Matic 3.2L MIL Lamp on VIN: WDBJF82H7X
Ladies and Gentlemen, Car runs Great, no driveability complaints. MIL is on. The fun part about this car is as you see in the Test Description, the Left After Catalyst Lambda control numbers are off, and whats fun about this is I tried a new oxygen sensor with... Trouble codes: P0173 (Self Adaptation at Limit N3/10 Left)
1992 MG 300SE 3.2L 3-2 shift VIN: WDBGA32E0N
hi im first time user.having problem with 2-3 shift cold .shifts ok after first shift into 3rd,trans overhauled & valve body & governor taken back out & gone through again but everything looked ok.throttle valve cable replaced & adjusted .not much info availab...
1986 Nissan 300ZX 2+2 3.0L Vent Control VIN: JN1HZ16S9G
Alright Nissan A/C techs, time to pick your brains. I have an 86 300zx in the shop with a vent problem I canít seem to figure out. When the car is idling or driven at low engine RPMs, the vent and a/c function is normal. As soon as you stand on the accelerator...
2002 Nissan Maxima SE 3.5L Bulb failure warning light VIN: JN1DA31D22
This Maxima has a bulb failure light that comes on only when brake pedal is applied. The body shop has repaired what they called a severe rear end collision. The lamp assemblies are new and all the lights function correctly. The car has a deck lid spoiler with...
1962 Oldsmobile 98 394CID vacuum harness
This is for the heater system on this vehicle. It is a heater only vehicle and what I am needing is a diagram of the vacuum system. All of the vacuum lines are off at the switch and in need of replacement. Any help would be appreciated. My book only go back to...
1997 Oldsmobile Aurora 4.0L oil leaks VIN: 1G3GR62CXV
need help have this engine with some oil leaks need fixed oil pan gasket and lower crank block craddle just above the oil pan .my question is ,is there any way of resealing this craddle without pulling engine and the trans can it be done in the car?has anyone ...
2000 Pontiac Firebird Formula 5.7L oil VIN: 2G2FV22G1Y
This is an informational post only. I will close it immediately. I have a 2000 Firebird in my shop with an oil leak dripping out of the bell housing. After cleaning the entire area and careful inspection, the PCV system was found to not be functioning. The vac...
1999 Porsche Boxster 2.5L cooling system VIN: WP0CA2986X
Hey guys, bit of a headache here, you would think that it would be a simple thing, but oh no, it's giving me grief. Vehicle came in with a cracked left front rad, looks like from previous body repair, I replaced the rad and filled the system, let it idle, rev...
1997 Saturn SL1 1.9L Stall VIN: 1G87H8283V
Engine Dies At Random,Looses Fuel Injector Pulse. Always Restarts In About 5-10 Minutes.
1987 Subaru DL 1.8L Electronic VIN: JF1AN42B2H
Where is the kickdown switch located on this vehicle? I have located the k/d relay above the glovebox, the k/d solenoid on the passenger side of the trans but can't find the k/d switch. Mitchell (manual) nor Alldata give a location, just wire colors. I'm fight...
2000 Toyota Sienna LE 3.0L No Start VIN: 4T3ZF13C5Y
I have this sienna in here that won't start, it is losing spark. A couple of times it tried to start and I had spark for a split second and then lost it. I was wondering if anyone has come across this before. Has anyone seen the igniters go bad? So far the cma...
2000 Volkswagen Beetle GLS 2.0L Brake Warning Signal VIN: 3VWCC21C2Y
New customer has this Beetle that started beeping & flashing the "brake" warning word on the instrument cluster underway on the Jersy Pike. It has a code 01316..ABS Control Module no communications intermittent. Cleared the code, it didn't reset but the brake...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52K0V
Thanks to all of you.All of your replies were all I would expect from seasoned mechanics. I will tell you that all of the info and tests had already been performed, including delco regulator. Instead of applying pressure to the rail we used vacume and experien...
1999 Chevrolet Blazer 4.3L Hesitation, very sluggish VIN: 1GNDT13W1X
Sorry for taking so long to get back. The customer finally got the vehicle back in. Now the truck was worse and I checked the throttle position sensor and sweeped it with the snap-on vantage and found a glitch. Replaced the TPS and runs good now. Thank you.
1998 Dodge Ram 1500 Laramie 5.2L No Second Gear VIN: 3B7HF13Z1W
Sorry, for the slow response. Customer didn't return for days. The Band had gotten out of adjustment & the apply pin had fallen in the pan. Pulled trans. & replaced band. Thanks Again! This is a Great Group!
1999 Dodge Ram 1500 Laramie 5.9L booster VIN: 387HF12Y4X
So I took off master cylinder and sure enough there was no seal where there should be.Replaced seal and all is well.Hardest problems are man made!Overlooked that damn o'ring 3 times.All the replies said seal problem or bad booster,thanks for the help guys.
1994 Ford Mustang 3.8L 20 amp eec fuse under hood fuse box VIN: 1FALP4047R
I would like to thank everyone who responded !! Michale [...] said the cam & coil connector's were switched & they were 100% wright. So the fuse no longer blowes and the car will start but runs rough. I now have no spark to cyclinders 3&4. I pul...
1997 Ford Taurus GL 3.0L idle high VIN: 1FALP52U5V
Thank you for all who responded. Cleared codes and test drove, the egr code for excessive flow came back almost immeidatly. Replaced the egr control solenoid and dpfe sensor. So far codes have not returned. Time will Tell! Trouble codes: P1504, P0402.
1998 Ford Mustang 3.8L A/C Compressor VIN: 1FAFP4047W
Well, after locating the CCRM in the r/f fender well & giving it a love tap, the compressor came on briefly. I replace the module & all is well. Thanks to all that took the time to help find the fast diag. & fix for this vehicle.
1999 Ford F-350 Super Duty Lariat 7.3L MIL Lamp on VIN: 1FTWW33F5X
thanks for all the input the vehicle will be returning for further diag. I will let you all know how that goes.Thanks again for the help. Trouble codes: P1247.
2002 Ford F-250 Super Duty XL 7.3L Surge VIN: 9BFJW21F23
this fault was cause by a intermittant cmp. but not logging an dtc. must have been dropping out within upper and lower limimt of logging dtc. thanks for all the help.
1985 GMC G3500 Vandura 5.7L drivetrain VIN: 2GTGG35M9F
Thanks to all that responded. I'm sorry but I guess the drive shaft was built from scratch when all of this happened, so I took it back to the shop that built it to double check it and it ended up being the center support bearing. I also replaced the front u-j...
1992 Honda Prelude Si 2.3L Engine oil in coolant VIN: JHMBB2258N
Hi everyone, thanks so much for the many replies. Most said to check the oil cooler, as I did too. I'm changing the motor out, since it's as most said probably a cracked block or head. My spam filter got all but one reply, and it wasn't until I checked the s...
1998 Jeep Grand Cherokee Laredo 4.0L vent operation VIN: 1J4GZ48SXW
Hello all, Thanks to those who replied. Most of you were close in saying the blend doors were the problem. However, Cam [...] from Langly, BC was right on. The lever that attaches to the bottom of the lower blend door had come off. This lever attaches to th...
1997 Mazda 626 DX 2.0L Hesitation VIN: 1XVGE22C6V
I have found that after i cleaned the MAF. The idle and the hesitation went away and runs better. Thanks to all that helped..
1992 Mercedes-Benz 500SEL 5.0L Exhaust VIN: WDBGA51E8N
YEAH! Fixed! the valve stem seals were all rock hard, and after replacing them oil use was two quarts in 80 miles! most impressive! and special thanks to Michael from CA and Peter from Florida reinspected the crankcase venilation system. Our apprentice did the...
1997 Mitsubishi Eclipse GS 2.0L Cuts out, Stall VIN: 4A3AK44YXV
Drove the car myself overnight and the next morning with a scan tool on it and it still did not act up for me. Customer took car and will bring back when it either dies completely or she can make it do it for me.
1999 Nissan Altima GLE 2.4L MIL Lamp on VIN: 1N4DL01DXX
Thanks for replying and offering help. Problem was intermittent, even in the shop as we diagnosed. Upon your suggestions, we pulled diagrams of the systems & started to look for the unusual. After pulling seats/lifting carpets, we found the ground wire had bee... Trouble codes: P0160, P0446.
2000 Pontiac Bonneville SSEi 3.8L steering coloumn VIN: 1G2HZ5412Y
the fix for this vehicle was to replace the intermediate steering shaft. I would like to take the time to thank robert from penn for giving me the TSB and shaft part #'s. The one thing that upsets me is I'm paying mitchell over 100.00 a month and have their la...
2001 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW52R51
I had gotten 3 replies on this related to checking cam timing witch I did with a scope on cam and crank signals and compared to another vehical from a local car lot that was the same. The costomer had picked up the vehical and was going to leave with us the ne... Trouble codes: P0172 (Fuel trim sys. Rich B1), P0175 (Fuel trim sys. Rich B2).
1989 Toyota Cressida Luxury 3.0L electic fans VIN: JT2MX83E5K
cleaned connections for all relays above fuse block in driver kick panel and fan switch in therm housing- all works fine now! thanks to all chuck
1995 Toyota Camry DX 2.2L No Start, Stall VIN: 4T1SK11E7S
Thanks to all of you who took teh time to respond, As many of you stated it was the coolant temp sensor. If I unplugged the sensor when it would stall it would start back up and run, replaced the sensor and all is well now. Thanks again!
1999 Toyota 4Runner Limited 3.4L door locks VIN: JT3HN87R1X
Hello Everyone! The fix for this 4Runner lock trouble was the Body ECU. This is part of the under dash fuse box (part#87230-35260 / $161 cost) We knew that we had all the door close signals and when we hit the door lock on the remote while sitting in the car w...
2000 Volkswagen Jetta TDI 1.9L Surge VIN: 3VWSF29M1Y
I have not yet been able to bring the customer back for completion of repair. The surge is so slight that I guess he is able to live with it for now.Most of the replies suggested the MAF and I must say ,though this has been replaced , I've seen some new MAF's ...
2002 Volkswagen Jetta GLS 2.0L Radio VIN: 3VWSK69M42
Thanks for all the replies, it turned out to be a simple problem though I spend a lot of time finding it. Several of you got me pointed in the right direction. First of all these radios will work with the key out and even with the ignition switch unplugged. Th...
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