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Prev Professional Automotive Repair Technical Discussions for November 19, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1991 BMW 325i 2.5L No Start, Cuts out, Misfire VIN: WBACB3319N
the car has a back fire when you accel. this happend if is cold or hot and is intermitent is not all the times, i have check fuel pressure is ok, check crank sensor with a lab scope the cam sensor, the only signal that i saw having problem is a glitch in the i...
1997 BMW 740i 4.4L lack of power VIN: WBAGF41030
hi all,this BMW came with lack of power concern and some time poor idle , customer had change fuel pump and MAF for same concern with no result. the problem that i can not comunicat with control unit by my scan tool (launch x431) i try to comunicat with all mo...
1989 Chevrolet S10 2.5L No Start VIN: 1GCBS14E2K
Hello This truck came to us with a no start- no injector pulse condition. We have spark and we have power to the red injecor wire but have no ground impulse from ECM. Customer was a former mechanic and has already replaced pickup coil, module and ECM. We check...
2004 Chrysler 300M 3.5L Hesitation, Stall, MIL Lamp on VIN: ??????????
My sister in law is bringing her car over for a new cam sensor. The repair manual says to pull the intake manifold to change the sensor. Is it possible to get it out, without pulling the manifold? Trouble codes: P0344 (Cam Sensor)
1996 Ford Explorer Eddie Bauer 4.0L speedometer VIN: 1FMDU34X1T
speedo works from stop to 1-2 shift and then sits at zero.checked connections at back of speedo because i was in there changing info on alldata for testing components.has anybody been here?I suspect a bad speed sensor at output,but am not one to throw...
2000 Ford Windstar LX 3.8L O/D Light VIN: 2FMZA5147Y
I need some help on a Windstar please.Van came in with complaint of trans slipping.Test drive to confirm,yes,was slipping.Check codes ,check eng.light was on.[...] off.Pulled unit replaced clutches,seals,converter,all so...
2001 Ford F-150 Lariat 4.6L engine noise VIN: 1FTRX17W21
The owner took the truck to EZ lube for a oil & filter change. The truck was running fine. Owner changes oil regularly clean inside motor. after leaving EZ lube the truck started making noise. He didn't drive 1 mile. He drove right back and they didn't know wh...
2001 Hyundai Santa Fe GLS 2.7L Poor Fuel Economy VIN: KM8SC83D61
Thanks for your consideration, I'll try to be brief and concise. I have a poor fuel milage complaint. Soon into it I found the shop-key wiring diagrams inapropriate, 0-1v o2s not 0-5v, colors wrong, pinouts not matching. The area rep is working on getting the... Trouble codes: P0430
1997 Nissan Altima GLE 2.4L Vehicle heating VIN: 1N4BU31D6V
Hello I have Nissan here that has no heat. Sounds simple enough right? The customer has a seized heater control valve cable and has been switching the heat control valve manually in the past. When I recieved the car it was 2 to 3 quarts low on coolant. At fi...
1999 Oldsmobile Bravada 4.3L diff VIN: W0X2715495
hi all 99 olds bravada with slip diff when you reverst with the wheele turn the vehicle vibrate with the strate ok i chahge the diff same prablem theck the engine mount one was broken change it same trouble.i would like some advice on this thank you all.
2001 Pontiac Firebird 3.8L engine VIN: 2G2FS32K51
Looking for some Firebird/Camaro regulars out there. I have this leaker to work on and hope someone has run in to this before. (3.8 V-6 that is not the driest engine GM has ever designed) Car came in with a petty good oil leak at the rear of the oil pan/rear...
2005 Toyota Camry 2.4L MIL Lamp on VIN: 4T1BE32K35
Hello fellow technicians: This is my personal car which has only 8,000 miles on it. About three weeks ago, a critter (groundhog) climbed into the engine compartment from underneath and chewed into two wiring harnesses resulting in a check engine lamp and damag... Trouble codes: P00, 136 (Bank 1 senor 2 circuit malfunction)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Chevrolet Blazer 4.3L Cuts out, Stall VIN: 1GKDT12WXV
Well this ones fixed. It ended up being the wire between the alt. and the junction box. Power goes from the alternator B+ terminal through a fusable link then to a junction box where it splits off to 6 B+ feed curcuits. I found it by putting channel 1 of my mo...
1977 Fiat 124 Spider 1.8L Thermostatic switch VIN: 124CS10121
Thanks to all who replied, especially Mark, Pat and Dan. I found the thermostatic switch located in the valley near the cylinder head. According to all who replied the dual point system is somewhat redundant. Thanks to Mark and the wiring diagrams, I eliminate...
2000 Ford Contour SE 2.0L No Start VIN: 3FAFP66Z4Y
Thanks to everybodys help, but I had to send this vehicle to a shop that more knowledge of CNG vehicles. After some research found out this was not a ford system but some company from Canada with little to no info. What I did find out that the regular fuel sys...
2004 Ford F-150 FX4 5.4L noise in upper end of engine VIN: 1FTPW14524
thanks to all that helped especially dave, dustin, nick, bill, mike and larry. You guys were right on the money the cam phazer was the problem.When i told my ford dealer about the problem and fix they said they have never heard of having to replace a cam phaze...
1997 Honda Accord EX 2.2L Clutch? VIN: 1HGCF8541W
Thanks to all who replied. I was finally able to check the crankshaft end play. It is over .010. I pulled the oil pan and the thrust bearing. It is wiped out. I have given the customer his options and am waiting on him right now. I had dismissed this as a prob...
1998 Honda Civic EX 1.6L oil pump housing VIN: 1HGEJ824XW
Well guys, we checked and rechecked the oil leak to verify what we thought we saw. For sure it was leaking between the oil pump and block just above the hex plug. We tore it down and found an o-ring that sealed the output from the oil pump to the engine block....
1992 Nissan Sentra SE 1.6L Poor Idle Quality, Surge, Misfire VIN: 2JHEG254TS
During the diagnosis process we had replaced the MAF sensor which is in the throttle body with a used sensor one tech had which made no difference. The only problem was we were not sure whether this used sensor was any good. After monitoring the voltage on the...
1997 Nissan Maxima GLE 3.0L System operation VIN: JN1CA21D8V
Well, the customer is really having a hard time with the $2,400.00 price tag of both a new BCM AND Auto A/C amplifier. Many thanks to the parts crew at Baker-Jackson Nissan (north) Here in Houston for all their kindness and patience and their interaction with ...
1998 Nissan Maxima GLE 3.0L MIL Lamp on VIN: JN1CA21A6W
Evening techs Well I replaced the evap pressure sensor on a feeling and the lite is off. I really don't understand why it fixed it, before I replaced it I checked the voltage and it was 3.6 volts, the new sensor was the same? I also watched the parameters du... Trouble codes: 443 (purge control valve circut).
2002 Nissan Frontier SVE 3.3L Hesitation, Surge, Cuts out, Misfire VIN: 1N6MD29Y12
Thanks to all that offered help; unfortunately I have been unable to resolve the fault to date. I still suspect the MAF or TPS sensors even though I have some fuel trim and 02 sensor discrepancies, because the 'fish-bite' happens under WOT, a theoritically ope...
2001 Pontiac Bonneville SE 3.8L Misfire VIN: 1G2HX54K32
The other day was cold and the car was having hard time starting, felt a dead miss when it did start. I checked # 5 cylinders for spark and was missing at times. Wave form for 18x didn't look good when running rough. I Checked Wiring from crank &cam sensor to ... Trouble codes: P0300 (Multi miss).
1998 Toyota Tacoma DLX 3.4L abs moduel VIN: JT4VW24DXW
thanks for the help guys the replies were split between the sensor position dirt or corrosion etc or the wheel bearings being 'loose' the customer had to take the vehicle so no more could be done at this time when we get it back we will check the above
2002 Toyota Prius 1.5L MIL Lamp on VIN: JT2BK18V92
My thanks to all who took the time to reply. The short answer is the shaft for the front pipe HCAC(Hydro Carbon Accuator Control)was frozen with rust, now will move, but sticky. Customer declined replacement. This is used to reroute the exaust around the rear ... Trouble codes: P1436 (Toyota-HVAC Variable Valve Open Malfunction), C1259 (HV System Regernerative Malfunction), P3108 (Communication Malfunction A/C-HV).
1996 Volvo 850 2.4L MIL Lamp on VIN: YVILW5545T
Hello After most everyone who replied had stated- the purge valve was sticking due to pieces of plastic and charcoal that had been sucked into it from the accident. After replacing the valve we have had no further complaints. Thanks to everyone for their help. Trouble codes: P0440 (Evap Emission Control).
1998 Volvo V70 R 2.3L torque tube VIN: YV1LW5245W
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