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Prev Professional Automotive Repair Technical Discussions for March 14, 2010
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Open Help Requests for All Makes and Models
Help Request Answers
1997 Audi A4 2.8L Surge, Misfire, MIL Lamp on VIN: WAUDA88D2V
Hi everyone. Stuck on a 1997 audi A4. Car came in with poor idle, misfire, surging and check engine light on. Scanned system to find code P0303 (misfre cyl. 3). I then wet down wires to find arching deep in cyl. 3 spark plug hole. Replaced wires and plugs (gap... Trouble codes: P0303
1992 Chevrolet K2500 Suburban 7.4L valve lifter
runs bad no codes vac @15 cut out .took valve cover off turn motor bring valve up and it bleed off install all new lifters same thing, and hard to retart untill lifter pump up has 45 psi on oil presure oil come up to rocker. valve adj 3/4 turn change oil and f...
1999 Chevrolet C3500 6.5L tcc pwm circuit VIN: 1GBJC34F6X
well did all this work because of an intermitten shift soliniod b circuit trouble, figured while i was there i would replace all the soliniods . well after a few days code p1860 pops up and trans shifts bumpy but does shift. so i droped the pan inspected could...
1999 Chevrolet C3500 6.5L tcc pwm circuit VIN: 1GBJC34F6X
sorry but i need some one to send me a wiring diagram of the PCM and if possible a componet locate list of componets for the transmission (4L80E) if at all possible. thanks in advance patrick
2002 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Surge, Poor Fuel Economy VIN: 1GNDS13S32
it drives ok but when it arrive to a stop and then accelerate again the engine sounds like poor of fuel, this is only 2 seconds. after that it runs fine and the costumer say sometimes the engine it dies, so the costumer went to the dealer to buy the tps sensor... Trouble codes: P1345
1998 Dodge Ram 2500 5.9L No Start VIN: 3B7KF26Z5W
I'm Thinking PCM On This One But Will Run It By You Just Incase I'm Missing Something. I Guess The No Start Occured After New Inner Fenders Were Replaced. Wonder If Something Didn't Get Shorted When Hooking Things Back Up. The ASD Relay Isn't Working Or Is The...
2004 Dodge Ram 3500 SLT 5.9L Fuel in oil VIN: 3D3LV38CX4
I need some help on this one, I have very little experience with this engine. This truck is getting diesel into the engine oil and quite a bit, enough that it is blowing out the vent tube from underneath truck. I have removed all injectors and tubes, I was tol...
1994 Ford Thunderbird LX 4.6L Poor Idle Quality, Cuts out, Stall VIN: 1FALP62W4R
This motor was fully rebuilt. Replaced bad crank. All sensors new. Fuel rail and system fully rebuilt (pump, sending unit, injectors, injector seals, regulator). Checked valves found no problems so heads are the same. The car will start but won't idle. It will...
1997 Ford F-150 XLT 4.2L electric windows VIN: 1FTDX172XV
hello. this truck came in with no wipers no power windows. i found if the key bell comes on the wipers work. but the bell ring 2-4 times and quits. i get no windows ever. the only place i see them meeting is the 300 buck gem mod has any one a clue
1993 Honda Accord EX 2.2L No Start VIN: 1HGCB767XP
car will not start no spark no fuel pressure
2002 Jaguar X-Type 3.0L MIL Lamp on VIN: SAJEA51CX2
hi guys, this one is driving me crazy. the car runs perfectly ok. after is driven about 120 miles or so from a cold start then the i get a message on the dash that say's cruise control disconected at about 3 seconds later i get a second message engine overheat... Trouble codes: P0115 (temp sensor)
1999 Kia Sportage 2.0L Misfire, MIL Lamp on VIN: KNDJB7237X
Good evening all This car came in missing terrible,hooked up modis came up with p300,p301,p303,p304 codes.I replaced the 2 plug wires,the spark plugs and the coil pack on no. 4 cylinder,put it all back together went for test drive[5 miles].Check engine light b... Trouble codes: P0304
2000 Mazda Millenia S 2.3L No Start VIN: JM1TA2222Y
Hello, this 2000 Mazda Millenia was brought in for a lack of power concern. Upon inspection i found that the vacuum line that goes to the CAC bypass actuator was broken. Ordered parts and parked vehicle outside while waiting for parts. The next day I wen't out... Trouble codes: P1250 (PRC solenoid valve circuit malfunction)
2002 Mercury Mountaineer 4.6L 1-2 shift VIN: 4M2DU86W82
This is my car, I bought it new and have over maintained it since day one. Problem is the transmission slips when shifting from 1 to 2. It does not slip on light throttle,but does under mid to higher acceleration. I changed the fluid and filter at 60K and it w...
2002 Mitsubishi Lancer OZ Rally 2.0L monitors not saved VIN: JA3AJ86EX2
This is the first time I've seen this car. Came in very minor modification. Checked EGR for operation, pulled valve cleaned pipes. Drove the EGR cycle and ran the EVAP service bay procedure and monitors ran (excluding cat). The owner did not want to pay me to ... Trouble codes: P0501, P0421 (cat efficiency gone now)
1971 Nissan 240Z 2.4L Rear Defroster VIN: HLS3020058
Good Day Folks, This is my own ride. I have a factory electrical legend but it does not have the rear window defroster in it. Hard to believe I know. She is a 1971 Datsun 240-Z 1/71 The wires to the grid are there. I traced them to a connector at the rh front...
1997 Pontiac Grand Prix GT 3.8L fuel guage VIN: 5TR58IU876
Hi everyone, i have a fuel guage issue on this pontiac. The fuel guage will read something different if you let it sit for a while. I unhooked the fuel sending unit plug to check to see if the guage would react to the signal wire being shorted to ground and it...
2002 Renault SCENIC 2.0L Mechanical VIN: VF1JA13022
hey renault tech's This 2.0lt scenic came in on a tow truck because the owner did not listen to a tech regarding changing your timing belt at 80,000kms. It bent all 16 valves. Upon installation, I found that the exhaust valve timing changes by one tooth when y...
1998 Subaru Legacy Outback 2.5L Starting VIN: 4S3BG6859W
I need some help from the Subaru guys, I bought this outback for myself and this is the first one that I have worked on. It will not crank over, I have no power going to the starter solenoid, I can jump it at the starter and it will start and run fine. I have ...
2005 Volkswagen Jetta TDI 1.9L Excessive Emissions, MIL Lamp on VIN: WVWSR61J35
Hello all, Work mainly on other German cars VW/Audi is not my thing. Anyway I have this 2005 jetta tdi wagon well maintained that has a p101 Channel 93 decel values are .80 range is .90-1.25 replaced Maf, Egr vacuum unit broken, cannot buy just vacuum unit so ... Trouble codes: P0101

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 Audi S4 4.2L MIL Lamp on VIN: WAUZZZ8E76
hi,finally got the car to fault with the scope connected and could see the problem on the switch side going to ground, double checked at the ecu and found problem to be the ecu and have ordered new one, many thanks to those who helped. Trouble codes: P0208.
1993 BMW 325is 2.5L Accessories VIN: WBABF3307P
Thank you to those of you who helped me out here. Once I was able to trace the wiring with some schematic help the problems became a lot more clear. It turned out the Sunroof had a bad relay and the power window switches weren't getting the signal through th...
2004 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DM57774
I'm very sorry about the delayed post.Did receice some replies-checking wiring-to ecm.Since the vehicle mainly hot and seemingly only for customer-talked customer into trading men vehicles for the weekend.was able to duplicate problem-no injector pulse on #5.G... Trouble codes: P0205, P0305.
1993 Chevrolet S10 Blazer 4.3L No Start, Surge VIN: 1GNDT13W0P
sorry for the delay was waiting for cust to decide what he wanted to do. finaly decided to try used inj assy , against my advice . replaced inj assy .no change in the way it ran .did more checking ,checked inj res at inj assy ,ok then ck res at harness outsid...
1999 Chevrolet K2500 Suburban 6.5L security system VIN: 3GNGK26F8X
Thankyou to all the responded to my help request it turned out to be a bad connection on the ignition harness under dash cleaned connection and voltage output on scanner turned out to be stable as it should reset code and no returned fault . I also cleaned al...
2006 Chrysler Town & Country 3.3L programming VIN: 1A4GP45R86
i want to thank everyone for their responses to my help request. i have applied all the suggestions without any positive results. i kept this request open for any further suggestions. the shop had to send the vehicle to a local dealer so the customer can get t...
2005 Dodge Grand Caravan SE 3.3L DVD Player VIN: 2D4GP44L15
Thank you , guys, for your input. I replaced the DVD player with a dealer exchange unit($263.00 cost). I web searched again for the cause of failure with no success- just interested. Thanks again.
1997 Ferrari F355 GTS 3.5L abs VIN: ZFFXR41A8V
Thanks goes out to all that replied. I learned a lot about the braking system (ATE system) in this vehicle. I also learned ATE has a web site along with a hot line in Germany. This brake system was also used in earlier Porsche vehicles. We wanted to do further...
2006 Ford F-150 XLT 5.4L odometer VIN: 1FTPW12566
1993 Infiniti Q45 4.5L trunk lock release VIN: JNKNG01CXP
Thanks all, located junction plug under rear seat cushion and grounded purple/yellow wire...pop! trunk is open.
2000 Jeep Grand Cherokee Limited 4.7L wndows/locks/mirror VIN: 1J4GW58N3Y
guys sorry for the long repost but this was for another shop ,,, i will have him check the door sill for a bad conection and or short and also to follow all the other postings on this vehicle ,, again many thanks for all that responded than...
1992 Land Rover Range Rover 3.9L No Start, Hesitation, MIL Lamp on VIN: SALHV1247N
All voltage resistance readings are taken at the ECU. Double checked for voltage drops on all grounds at the ECU, as well as consistent stable power. I also cleaned all grounds under the hood one more time. Replaced the ECU with a used one, code 14 is gone ... Trouble codes: 14 (Coolant Sensor).
2000 Mazda Miata 1.8L MIL Lamp on VIN: JM1NB3539Y
hi all, received replies about switched vacuum lines at manifold, obstructed vent hose/filter(spider webs, etc.), and a sticky purge valve. Thanks to Bryan from Missouri for good specs. As it turns out I found an intermittent bad gas cap. For anyone testing th... Trouble codes: P0442 (Evap system small leak).
2004 Mini Cooper 1.6L keyoff draw VIN: WMWRC334X4
Well, We ended up sending the Mini to the dealer. Without being able to scan the system, we had no clear-cut direction and little info on even the locations. I will post an update when we hear from the customer. Here is what we learned: Andrew & Randy confirme...
2001 Opel astra g 1.4L t/bar VIN: WOLOXCF081
i removed the centre console to check the lockout switch at the base of the t/bar,found that micky mouse had made a meal of the brown earth wires,repaired the damage,works ok now,have set some mouse traps on the floor to try and catch the little bugger.
2005 Renault clio 1.6L valves, head VIN: 3BNBB2J665
Thanks for the replies, special thanks to mike from spain. Amazing answers from all over the world. All finished and running great, The half moon item caused some problems, its the back of the camshafts the groove disects the cams in 2 unequal parts a large a...
1984 Volkswagen Quantum Wolfsburg Edition 2.2L shifter VIN: WVWGB033EE
Thank you to all that replied, this site has proven to be time and time again one of the best tools in our box! The Audi kit part number for the shift kit bushings worked out, the shifters back together. We now have another problem with the shifter but we will...
1984 Volkswagen Vanagon Campmobile 1.9L Valves VIN: WV2ZB0253E
The customer opted to buy a rebuilt 2.1 engine "online" (in lieu of tearing apart his) and dropship it to us to install. We've yet to receive it so the van sits taking up space until it gets here. I will post an update in the future once we tear down the probl...
2005 Volkswagen Golf GL 2.0L MIL Lamp on VIN: WVWZZZ1KZ5
Many thanks to those who took the time to reply. This was ultimately a self made problem but the reason it was so vexing was because there is no information/schematic diagrams for the components involved. There is also not much experience out there regarding ...
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