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Prev Professional Automotive Repair Technical Discussions for November 5, 2010
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Help Request Answers
2004 Acura TL 3.2L Ride VIN: 19UUA655X4
This vehicle has a very bad vibration ONLY under acceleration which is perceptable at slower speeds but most noticeable between 40 and 80. At 80 and faster it is almost completely gone. While on the lift we have found no loose or bent steering or suspension co...
2002 Audi Allroad Quattro 2.7L No Start VIN: WA1YD64B62
Hello and thanks for the help in advance. Car came in MIL on P0741 needing the usual torque converter vehicle drove fine only 75 RPM slip but enough so another tech pulls vehicle in does torque converter, buttons up vehicle goes to fire no start. Tech messes w... Trouble codes: P0741 (Torque converterclutch stuck off)
2004 Audi A8 Quattro L 4.2L Readiness monitors VIN: WAUML44E74
Vehicle has failed the state emission test due to 3 monitors not run. Secondary air, O2, and Cat. Customer had driven over 1000 miles since first failure. I have tried to generate readiness codes in the bay but the accelerator becomes useless and the rpm drops...
2002 BMW 530i 3.0L converter clutch VIN: WBADT63462
BMW techs and others, vehicle came in with the MIL on, but there were no complaints driveability wise from the customer. Shop manager drove vehicle and reported no symptoms. Checked the codes and found the P0741 torque converter CKT Performance or stuck OFF. W...
1997 Cadillac Seville SLS 4.6L theft lock VIN: 1G6KS5Y4VU
I just changed the engine in my 1997 Seville and now it won't start. The message center says that there is a "Theft lock problem" and "Car may not start". I know that the fuel system is disabled (No power to relay) which the theft lock does. How do I reset ...
2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A75
need help i cant find whats keeping my fuel trim up mostly on bank 2 at idle its around +15 bank 1 +9 at idle tryed massair flow smoked intake put intake gaskets in fuel trims climb on highway on decel also cleaned injectors found vaccum hose on back of intake... Trouble codes: P0171, P0174
2005 Cadillac CTS 3.6L unknown VIN: 1G6DP56795
between 45 55 miles per hr just after the car shifts into overdrive, with slight acceleration there is a vibration/drone coming from the drivetrain. it feels like a bad u joint. I removed the driveshaft and replaced it with a used one [I didnt feel anything wr...
1991 Chevrolet Lumina 3.1L Surge, Cuts out VIN: 2G1WL54T9M
Car came to me with intermittant driveability problem. it will cut out on acceleration, almost as if it is a rpm limiter kicking in at low rpm. If you start up an incline it will stumble and loose power.It will idle fine and when cruising it will run out fine ...
2000 Chevrolet C3500 6.5L No Start VIN: 1GCHC33F1Y
hello iatn i have an issue with a Chevy 3500 diesel truck. When you try to start the truck it does nothing it wont even try to start ,but if you use the wd-40 trick it will run. Ive looked at the modis and it is showing that the injector pulse is 279.0ms, the ...
2001 Chevrolet Silverado 2500 HD LT 6.0L Door VIN: 1GCHK29U91
Trying to find out how to get a door off of this so that the pins can be replaced? This is a new setup to me and I would like to know how to replace these door pins with the new updated ones
2005 Chevrolet Equinox LS 3.4L front end VIN: 2CNDL13F65
while test driving this vehicle if you accelerate at a steady speed there is no issues. if you floor it the vehicle feels like the whole front end is moving. it isn't just in the wheel it appears as if the cradle had bad bushings and was shifting back and fort...
2001 Chrysler Concorde LXi 2.7L Engine Powertrain Management VIN: 2C3HD46R51
This car before the rebuild was driving and lost oil pressure, ended up not having compression and others. Was suppossely rebuilt by machine shop. Anyways car throws p0172 rich code and the p0175. And every once in a while will only start if you give it gas. I...
2004 Chrysler Sebring 2.7L coolant resovoir VIN: 1C3EL55R94
r&rd the upper coolant housing that the upper rad hose goes to & the t stat. the upper housing had a hole in it that was leaking bad. pressure tested. holds pressure.filled & bled cooling system. tep gage only goes up to 1/3 and coolant resovoir gets hot with ...
1996 Dodge Intrepid ES 3.5L start and stall VIN: 2B3HD56F9T
Car came in after customer left lights on and drained battery, he jump started it himself and it just starts and dies ever since. After 2 seconds of running my scanner says fuel not allowed. Also all of the gauges and door locks quit working and no communicati...
1999 Dodge Ram 2500 5.9L No Start VIN: 1B7KF2369X
Having problems with trying to start this vehicle. Will crank right away but fuel pump will take 6 seconds before starting . Continue to study system , found when turn key from off to run position will take 5-6 seconds for wait to start ligh to come on and the...
1992 Ford Ranger Sport 2.3L Poor Idle Quality, Cuts out, Stall VIN: 1FTCR10A8N
alright, customer says it does not run right. after a drive I agreed it was a crank and no start. after first diag it was determined to be a ign module. after installed stated right up drove it out the shop and it stalled. it started up tried again, it stalled...
1996 Ford F-350 XL 7.5L Timing Cover VIN: 1FDKF38G2T
I Have a 1996 California compliant F-350 460 engine. The Timing cover is rotton and it has a major coolant leak. The CA truck has a crank sensor and a different cover than a normal 460. Does any one know where I can get the correct part? Ford - discontinued D...
1999 Ford F-250 Super Duty Lariat 7.3L tail lights VIN: 1FTNX21FXX
Earlier today a gentleman brought in his 99 F250 for a tail light inop symptom. Thinking this would be easy fix I took it on without an appointment and I have been scratching my head ever since. We have power to everything but the tail lights, if we apply powe...
2001 Ford F-150 XL 4.2L shifter VIN: 1FTZF17251
Installed a clutch in this truck, along with the hydraulics. After reassembly, I got in the cab to install the primary and secondary shifters. A note here. I had left the trans in neutral while doing both removal and install. I installed the primary shifter, t...
2002 Ford F-150 XL 5.4L Poor Idle Quality, MIL Lamp on VIN: 2FTRX18L52
I posted for this truck a few months ago, I closer to fixing it now. This truck is running lean, short term fuel trim is maxing out at 54%! The truck does run better when I disconnect the MAF. Fuel pressure is good at 32psi and jumping to 40psi with snap throt... Trouble codes: P1131, P1151
2004 Ford F-450 Super Duty XL 6.0L overdrive VIN: 1FDXF46P34
fellow mechanics please help if you can. this ford truck will not go into over drive above 40 mph. this torqshift unit has never had any issues and has already been serviced with the correct filter and fluids prior to the overdrive issue. it will shift into ov...
2005 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTSW21P25
Have no clue, came in on the tow truck with a no start. checked and yes no start. checked fuel presure at the fuel filter and have about 55 psi. When you pull the fuel filter out and pull fuel pump fuse you get no compression bubble coming from the injectors. ...
2003 GMC C4500 Topkick C4C042 6.6L Fuel system
Hey guys looking for a little insight here. This truck came in today low oil pressure running very rough. Blowing oil out the pcv tube. Found oil reading about a foot up the dipstick. Drained the oil and found about 2 gallons of diesel fuel in the crankcase. R...
1995 Honda Civic VX 1.5L Excessive Emissions VIN: 2HGEH2371S
car failed smog test for high NOx. EGR stumbles when vacuum is applied. Vacuum to egr (5 inches)when throttled up. Only holds for a second or so. Idle & cruise readings are actually at 15mph and 25mph respectively on the dyno. Should the cat be replaced? Is th...
2000 Isuzu Rodeo LS 3.2L Misfire VIN: 4S2CK58WXY
Got this Rodeo that has a steady misfire at all times. This vehicle was recently purchased by a used car lot. All coils and injectors working properly. Vacuum at idle is 20 hg and steady. Fuel pressure and volume good. Scan data for this vehicle is terrible on... Trouble codes: P0300 (Multiple cylinder misfire)
2003 Jaguar S-Type 3.0L Heat/AC regulation VIN: SAJEA01T63
Car seem to only give heat when set at 80 degrees and only cools when set very low. cant seem to regulate the temperature between 60 degrees and 80 degrees. You need to set the temp for full heat and bake, or full ac and freeze. Any ideas?
2003 Jaguar X-Type 3.0L radio/defrost VIN: SAJEA51C63
Car came in with dead battery. replaced battery and customer said to check radio - it turns to static when the rear electric defroster is turned on. The radio works well all other times. The battery is new and the charging system is working properly. She said ...
2002 Jeep Grand Cherokee Limited 4.7L Fuel Injectors VIN: IJ4GW58N82
Truck came with check engine light, scan found code for cranksensor, Installed new cranksensor. Vehicle runs for 10 minutes, then shuts off when hot. Vehicles injectors start pouring gas from wide open infectors. Vehicle won't restart until cooled down. If flo...
2006 Jeep Commander 4.7L front differential solenoid VIN: 1J8HG582X6
I have been unable to deter mine labor repair time for front differentiasl solenoid or a diagram that shows the solenoid so I can figure out a labor time. thanks for any replies.
2001 Kia Sportage 2.0L park lamps brake lamps VIN: KNDJB72392
car came in with no park lamps or dash lamps, replaced fuse and lights work for 5 mins...then fuse blew...the park lamps come on when you hit the brakes and the high mount stop light comes on when you turn on the park lamps
2003 Kia Rio 1.6L Poor Idle Quality, Hesitation VIN: KNADC12543
Hello all this one is driving me to drink. The customer says that it RLS when it is cold and then gets a little better when it warms up. We have had it here twice now and we can not get this to happen has anyone ever seen or had this problem before if so any h...
2003 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME11403
Hi guys, this range rover came in with the mil on with a code po159. So we tested the bank 2 o2 sensor wiring had the right voltages and grounds. So we replaced the downstream o2 sensor on bank 2. We kept the vehicle for one day to see if all was well and it w... Trouble codes: P0159
2001 Mazda Millenia 2.3L Misfire VIN: JM1TA22011
We have a millenia "s" that has come back after fixing a misfire. We have replaced spark plugs, coil on #3 cylinder, checked compression. It seems to only want to miss after its been shut off for a while and goes away after running for a few minutes. Beginning... Trouble codes: P0303
2001 Mitsubishi Montero Sport Limited 3.5L Timing VIN: JA4MT41R31
About a month ago the vehicle came in with a loose harmonic balancer. we found that the roll pin had sheered off of the timing gear and aloud the balancer to spin. we replaced both roll pin and balancer at that time. vehicle came back a few days ago with the s...
1999 Nissan Maxima SE 3.0L NATs VIN: JN1CA21D9X
I need a source for troubleshooting this system that does not require the Consult 2 scanner.
2001 Nissan Altima GLE 2.4L Security VIN: 1N4DL01A11
Vehicle came from another shop and has no fuel injector pulse or spark.security light stays on. Other shop had locksmith try to reprogram security system. Talked to locksmith and he said system would not program. We found codes p1610 and p1612 but are not sure...
2002 Oldsmobile Bravada 4.2L temp control VIN: 1GHDT13S02
This Bravada has auto temp. control with dual zone heating, heat works fine & temp is adjustable in DEF & FLOOR settings, however when in vent position there is no heat output unless 90 degrees (max temp) is selected. Found a post in archives for what appears ...
2003 Porsche Boxster Roadster 2.7L electric window VIN: P038RYFU85
Vehicle came in with same problem from a few months ago. When you open the driver door the window will not go down a little to clear the convertable top. When closing the door, the window contacts the convertable top. I put an aftermarket window motor in it th...
2003 Saab 9-5 Linear 2.3L MIL on VIN: YS3EB49EX3
as some of you may remember, I recently posted about this same problem and closed with a summary to the effect that I was waiting to get the valve body back from the rebuilder. After putting all this together and test driving, I gave it back to the customer w...
2005 Subaru Outback R 3.0L Poor Idle Quality, Misfire VIN: 4S4BP8SC75
Engine has +20% LTFT on B2 and normal -3/-5% LTFT on B1. Cam chains are timed correctley. Misfire is VERY intermittant. We are using Subaru Select Monitor PC based scan tool for data and codes. Car was delivered to client 2 weeks ago with same trims. No codes... Trouble codes: P0303 (3misfire), P0305 (5 Missfire)
2006 Toyota Highlander Hybrid 3.3L ABS Modulator VIN: JTEEW21A86
When I scanned the first time I had some fault codes related to open ckts in many Solenoid Valves inside ABS Actuator, so I decided to replace the Actuator(used), now those codes are not longer present. Today These are the DTCs pending to repair: C-1243:Master...
2010 Toyota LAND CRUISER 5.7L Key Fob VIN: JTMHY7AJ1A
Need to add another key-less fob to vehicle need key code registration procedure, tech stream lite does not show it in smart key/utility/ (key code registration) section. Is there another way to do it ? or manually ?
1999 Volkswagen Jetta TDI 1.9L Excessive Emissions, Poor Idle Quality, MIL Lamp on, hard start cold VIN: 3VWSF29MXX
I am struggling with this vw tdi jetta hard starting issue. Following the flow charts I have and test procedures the only other thing I can see that may be an issue in this system is the ECM, yet I wanted to see if anyone has run into a simular instance. Hard ... Trouble codes: 16764 (Glow Plug heater Q6 circuit malfunction po380), 17811 (EGR system intermitant p1403)
1991 Volvo 240 2.3L MIL Lamp on VIN: YV1AA8846M
Looking for fuel pressure specs. I dont do many volvos of this age. Mitchell and identifix say 42psi. I currently have 62psi engine idling / 45psi KOEO ? I have just replaced the regulator for #232 code. I had 70+ psi prev. and would not hold any pressure with... Trouble codes: 232 (lambda control)
1991 Volvo 940 T 2.3L No Start VIN: YV1JA8740M
Thank you for reading this post. First thing I found was timing was off. Set corectly and ran compression test 129-150 psi. I am getting no ground signal from ECU. Pin 18 @ ecu found no resistance nor short to ground in harness. With ECU pluged in KO and injec...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi A6 Quattro 2.8L Headlamps VIN: WAUED64B11
Well, sorry to say that I don't have a definitive answer for you guys. It was my belief that the headlamp module was faulty but the customer just didn't care in going that route. We instead opted for the backyard fix and I simply got the headlight aimed proper...
1997 Cadillac DeVille 4.6L Instrument Cluster VIN: 1G6KD54Y1V
Wanted to make sure all is ok. Found out there is only one GM licensed Cad repair, it is SPECMO in Michigan. The place I was using evidently didn't have the right parts, test equipment. It has been over two weeks now, the client came in to let me know all was ...
2000 Cadillac Seville STS 4.6L Vehicle Speed Sensor VIN: 1G6KY5498Y
No rub-throughs in the harness, the connector is tight and clean. The signal never dropped out for us, and the customer only had an issue one time. I have suggested the customer drive the vehicle until either the problem returns or symptoms get worse. Thanks t...
1979 Chevrolet Corvette 5.7L Starting VIN: 1Z8749S452
Thanks for everyones help! This was my first time posting and WOW was I impressed with all the responses! The car ended up sitting for a while until the customer decided what they wanted to do..Meanwhile, I started from scratch..I took both the battery and s...
1992 Chevrolet K1500 Silverado 5.7L Hesitation, Cuts out, Stall VIN: 1GTEK14H9N
Thanks to all who responded despite the lack of information that I supplied. It was the distubutor. Looking at the number of responses that named the Dist., we took a chance and replaced the distubutor. Thanks again to all
1999 Chevrolet Venture 3.4L MIL Lamp on VIN: 2G1WF55K35
Wow, just learned something! Thanks to everyone who said to remove the throttle body and look for carbon. Pulled the TB off and the port going to the EGR was bulging with carbon. Had to chisel it out to clear the pathway, it was completely blocked. Cleared... Trouble codes: P0401 (EGR insuficent flow).
2003 Chevrolet Silverado 2500 HD 6.6L Extended crank VIN: 1GCHK23113
Thank you for all the suggestions. As I said in original post the fuel system passed all the the test. The only test I did not due was the return rate test. Personal opinion that test is as much work as just pulling the injectors. Long story short I pulled all...
2007 Chrysler PT Cruiser 2.4L Surge, Misfire, MIL Lamp on VIN: 3A4FY58B87
Well the car seems to be fixed. The customer came back after 300 miles. The dwell and duration look good. The ford spark plug repair insert and blowing back through the intake were key. Thank you for your help. Trouble codes: P0303.
2008 Chrysler Sebring LX 2.4L No Start, No Crank VIN: 1C3LC45K48
Thanks to all who replied- the TIPM was replaced without success. Mathew [...] put us on the correct path - indicating the fused 'F20' circuit that was OK out of Switch and actually feeds into TIPM (not PCM)- this is in addition to MUX and data from WCM which ...
2003 Dodge Neon SE 2.0L Poor Idle Quality, Surge, Stall VIN: 1B3ES26C93
Thanks for all the replies!!! Replacing both pre and post o2 sensors with OEM parts fixed this vehicle. Unfortunately Mitchel's Diagnostic tree for the o2 circuit has the incorrect spec for the o2 return voltage, it IS supposed to be 2.5v's. There is someth...
2005 Dodge Grand Caravan SXT 3.8L No Start VIN: 2D4GP44L35
sorry it took so long to get back to you all. we just installed a reman. brain $250.00 allready programmed to the vin. thank god the b.c.m. was not damaged like some had worned might be a possility.thank you all.
2005 Dodge Caravan SE 2.4L Misfire, MIL Lamp on VIN: 2D4GP44L75
this one is fixed,this van wiped my but never seen one like this,it ending up being the lobe on the cam shaft and the lifterwas worn.replaced the cam and the lifter it runs great.thanks for all the replys. Trouble codes: P0302.
1999 Ford F-150 XLT 5.4L transfer case VIN: 1FTRX18L7X
i did recieve several replies, but none were helpful. the truck was sold w/o 4lo. lucky the customer did'nt care. i would still like to know what the problem was.
2003 Ford F-250 Super Duty XL 5.4L monitors VIN: 3FTNF20L93
First thanks to everyone for your time, especially Kenneth, Jeffrey and Justin. The obd drive cycle was followed correctly and from cold start. Jeffrey's idea of mode 6 worked, I found cyl 3 misfires at .12%. Not much but maybe enough. And Justin is also corre...
2004 Ford Excursion Limited 6.0L Hesitation VIN: 1FMSU43P04
After much time and headache, this truck is fixed. As most replies indicated, the fuel injectors were the problem. since we did not have the tools to test the injectors, we had a friend at Ford do the testing - 5 of 8 failed. I recomended Ford injectors, but t... Trouble codes: P0401.
2006 GMC Sierra 2500 HD SLE 6.6L Glow Plugs VIN: 1GTHK23D06
thanks to everybody for their replies,i was able to get all 8 glow plugs replaced,and only had 2 break in the head,1 plug was dug out with an easy out,2nd plug had to be drilled out almost completely.put anti-seize on new plugs,i sure wouldn't want to do that ...
2004 Hyundai Santa Fe 2.4L no power, bogs VIN: KM85B12B74
replaced fuel pressure regulator, ran fine. thanks for all your help.
2004 Kia Sedona LX 3.5L hard accel. bucking VIN: KNDUP13194
2001 Mercedes-Benz CLK430 4.3L Roof VIN: WDBLK70G41
"SECURE THE NUT AND YOUR DONE" Thanks guys, you made my Friday. Very different from the Porsche tops i am used to. Well a little inspection on those bow cables, i found a bunch of loose hardware. Tighten everything up and it works like new. Owner had no e...
2004 Mini Cooper S 1.6L MIL Lamp on VIN: WMWRE33474
Found broken wire in harness 4 inches from ECU. Tried a new pedal still same problem. Looked in wiring diagram found 6 wires from pedal to ECU ohm checked and found 1 wire open. Started to open wire harness covering and found the problem wire. thank you for... Trouble codes: P2127 (Pedal travel sensor - low input), P2138 (Pedal travel sensor 1 2 measuring range power output problem).
2000 Mitsubishi Montero Sport XLS 3.0L abs VIN: JA4MT31H7Y
sorry guys i dont have anything positive to report on this one. the vehicle needed $800 in brake work and i requested additional diagnostic time on the communication problem. the customer said forget it and i didnt get to continue. thanks for your help.
2000 Nissan Sentra GXE 1.8L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 3N1CB51D5Y
1986 Porsche 944 Turbo 2.5L Cooling Systems VIN: WPOAA0959G
thanks for all the help it was the watter pump it was sliping on the belt and not turning that was making it overheat
2005 Saturn Ion-1 2.2L Clutch Hydralic System VIN: 1G8AF52F75
Well after some research, I BELIEVE this valve is a pulsation damper. Why an engineer would install such a device is new to me. I left the old one in and the car is gone with zero reported problems. Sorry about the long reply but I was gone hunting for two ...
1996 Toyota Camry LE 3.0L Poor Idle Quality VIN: JHMED6353K
We've estimated replacing the idle control motor, cleaning the throttle body and performing a fuel injection clean, but the vehicle just sits here with no decision from the customer. Based on everyone's responses, we watched the idle steps on the solus and fo...
2002 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4T3ZF13CX1
no flash update the pcm worked for the past 8 years so we replaced all cats all is well thanks Trouble codes: P0420.
2002 Toyota Sequoia Limited 4.7L abs VIN: 5TDBT48AX2
Thanks for your input. This truck had several problems. First the code C0226 was a soleniod circuit problem in control module for abs. Code C1231 for steering sensor that was set in replacement module was fixed by TSB BR001-02 that clarifies zero point calibr...
1999 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWMA63B5X
Thanks for the info. Yes, I will order an OEM cat. and we'll repair it that way. I agree that sometimes we must employ OEM parts. ( Aside: I found this especially true with Asian ECT sensors. ) Thanks again. Bob Trouble codes: P0422 (Main TWC efficiency bank1 below threshold).
2004 Volkswagen Passat GL 1.8L MIL Lamp on VIN: WVWPD63B24
thanks to everyone for your input,Roger your info.was what i was looking for,i was finding it hard to believe that with the exhaust pressure that i have the air pump was able overcum it.I ran the car this morning and twice now i have caught the switching valve... Trouble codes: P0411.
2001 Volvo S80 2.9 2.9L No crank VIN: YV1TS94D41
Well the volvo mystery is fixed thanks to Magnus who sent me in the right direction.I found that I had no power to the GSM.The purple and white wire is the power.I added power to the circuit and everything Started working .Shift indicator on dash and the indic...
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