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Prev Professional Automotive Repair Technical Discussions for August 30, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
2003 BMW X5 4.4i 4.4L air suspension VIN: 5UXFB33583
This truck came in with the suspension collapsed. We attempted to raise and lower vehicle. Pump for air suspension will come on and run for 30 seconds. After running the pump sits for a minute and then the pressure relief valve opens and bleeds out any air pre...
1996 Buick Roadmaster Collector's Edition 5.7L Poor Idle Quality, Misfire VIN: 1G4BN52P3T
Optispark nightmare. Vehicle has slight misfire at idle and with RPMs raised. Not noticable when driving and under acceleration. Data stream shows intermittent misfire counts on all cylinders randomly. Never sets any DTCs. Misfire can be felt in steering wheel...
2002 Buick Park Avenue 3.8L w/s washer fitting VIN: 1G4CW54K32
I have an inop. w/s washer system on this vehicle due to a broken fitting at the base of the wiper arm. This has the washer nozzles on the wiper arms & a short hose connects it to the fitting coming through the cowl cover. This fitting is the part in question ...
1971 Chevrolet Chevelle Malibu 5.7L Fuel Gauge
Original problem was fuel gauge would not read correct fuel level. I did a full sweep test and the gauge goes all the way to full and all the way back to empty, so i replaced the sending unit with part from national parts depot. Gauge still will only go to bet...
2002 Chevrolet Impala LS 3.8L Suspension VIN: 2G1WH55K62
Hell all. Thank you in advance for your thoughts. This car has a popping/clunk sound when the steering wheel is not straight and going over a bump. For example, when turning into a parking lot that is slightly elevated. Turning the steering wheel while not mov...
2006 Chevrolet Silverado 3500 LT 6.6L Starting VIN: 1GCJK33D56
Good Morning Techs! This vehicle was brought into us for an intermitant no start problem after being thoroughly warmed up. The vehicle has already been to the dealership, with no repairs being done. We have checked the starter, alternator & battery and all te...
2006 Chrysler Sebring Touring 2.7L abs VIN: 1C3EL56R76
Customer brought car to me complaining that the ABs light, the red brake light and check engine light were on. I found code U110c in PCM and I was unable to communicate with the ABS module. Since the U110c was a communication code I tried to diag the ABS probl...
2006 Chrysler Pacifica Touring 3.5L Unknown VIN: 2A4GF68456
This transmission code for the output speed sensor wont go away even after replacing the sensor. While observing the trans. data, I see an output speed rpm reading (it fluctuates) even when the vehicle is sitting still or even in park. The only way I can get i...
2008 Chrysler PT Cruiser 2.4L AIR BAG-Passenger seat belt switch VIN: 3A8FY48B28
This problem child started with a scan of air bag light for codes B1B55 & B1b57, Both codes relate to pass seat belt buckle issue, found per spec resistance in belt switch was too high at 32 ohms, spec per mitchell data is less than 10 ohms. replaced buckle wi...
1995 Dodge Ram 2500 5.9L no reverse no fourth gear braking no irst gear bra VIN: 3B7KC23C7S
trans just overhauled has no reverse no first or fourth gear braking
1999 Dodge Durango SLT 5.9L No Start VIN: 1B4HS28Z5X
Let me start by saying i love this web site, the people in the background that make it possible. and the great members. Anyway, onto my problem. This veh. has no spark, unsure how it is possible, with knowing i have asd power and pcm ground at the coil connect...
2001 Dodge Durango 4.7L Cuts out, Stall, MIL Lamp on VIN: 1B4HR28N71
The p108 will come and go along with the light not always being on. The stalling/cutting out on decel or just sitting there at idle is intermittent. Drive one day to and from work for 15 mins, no problems. Next day, same trip will stall on decel 5 times during... Trouble codes: P0108
2003 Dodge Ram 2500 5.7L Lf Wheel Speed Sensor VIN: 3D7KU28D43
Getting a code 23 lf wheel speed sensor open circut. Checked all related wires. Replaced sensor. There was alot of metal shavings and cleaned the area befor installing new sensor. Still getting code. Any help is appreciated.
2003 Dodge Neon SXT 2.0L cooling system VIN: 1B3ES56CX3
This car came to me from another shop. it overheats on the highway at cruise speeds after a long drive(20mi or more) if you pull off the highway it will come down in temp. or if you turn the heat on it will drop but climb back up. the previous shop replaced wa...
2003 Dodge Neon SXT 2.0L Stall VIN: 1B3ES56C83
This car has been in every shop in town. It is a rebuilt wreck. It stalls intermittantly after first starting. About the time you pull out of the driveway and start to take off. It has had a used computer installed, new O2 sensor, new CMP sensor, transmission ... Trouble codes: P0132, P0420, P0440, P0456
2007 Dodge Dakota SLT 3.7L Misfire VIN: 1D7HE42K97
This truck came in with a po304, we swapped coils, plugs, checked for intake leaks, cleaned the fuel system, and swapped injectors. A leakdown test showed 60% leakage heard through the intake. The head was pulled and we found carbon deposits on half of the int...
1993 Ford Bronco Custom 5.0L No Start VIN: 1FMEU15N9P
towed in from another shop and now I have it, crank and no start / NO Spark. , no codes and live data normal and as you see in history everything is new. power to coil. what am I over looking? any ideas? thank in advance for any input.
1995 Ford F-150 Eddie Bauer 5.8L Reverse VIN: 1FTEX14H2S
This truck has harsh engagement into Reverse, pressure goes up to 120 psi, if you hit the throttle while in reverse then let off the pressure will go to 90 psi. Before I cleaned the MAF this truck had harsh engagement into drive and reverse, and some times w...
1995 Ford Aspire 1.3L No Start
Here we have a 1995 ford aspire with no fuel and no fire. Sorry for no vin.Inertia switch is good. you can hear the fuel pump run and it fires 1 time as you turn the key off.Customer bought a new distributor and it was installed with no change.Has anyone had t...
1996 Ford F-250 XL 7.3L Transmission/ Map sensor VIN: 1FTHX26F6T
Customer went to trans shop with codes P0236, P1728 and harsh shifts and they said there where no transmission issues and cleared codes. Customer came to me with same issue. After clearing codes trans shifts normal and no codes have returned. So Im sure this i...
1999 Ford F-150 Lariat 5.4L No Start VIN: 1FTRX18L6X
Truck came in with cranking no start. Checked fuel pressure= 0 Found only 6 volts going to fuel pump. The dark green and yellow wire coming from pcm has 6 volts on it. this wire is pin 40 at pcm conector. I'm thinking pcm, has anyone else out there seen this b... Trouble codes: P1356 (ign run circuit failure)
2001 Ford F-250 Super Duty Lariat 7.3L low power VIN: 1FTNW21F71
Got a 7.3 that feels low on power from about 1/3 throttle to about 2/3 throttle. If you mash the pedal to the floor it feels like all the rest although it will never go over 14lbs boost. Here is what I have checked. Epb, Map, and Baro are all at 13.4 koeo but ... Trouble codes: P0238
2002 Ford Thunderbird 3.9L Passenger Power Window VIN: 1FAHP60A92
We have tried everything short of changing the window motor on this car. Window will go up and down norally with both switches, but the passenger side will not short stop to work with the convertable top.drivers side works correctly but passenger side will onl...
2003 Ford Windstar LX 3.8L rediness monitors VIN: 2FMZA51483
this was a rental car new .customer purchased in 06 and has always passed oregon emissions test without evap and catalyst being supported.now oregon requires that both be supported. the car has upstream and downstream o2 sensors and should be capable of monito...
2006 Ford Fusion SE 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3FAFP07136
Any help would be greatly appreciated. I have a 2006 Ford Fusion Se with a DTC P 305. The coil and spark plug were just replaced. The fuel injected has also been replaced. The compression in this cylinder is 160 PSI, the injector is being fired. The problem is... Trouble codes: P0305 (Cylinder 5 misfire Detected)
2007 Ford Expedition Limited 5.4L No Start, Poor Idle Quality VIN: 1FMFU19557
No start condition after night, need to crank at least 2 or 3 times, once start, poor quality, raw gas smell ...
2008 Ford Escape XLT 2.3L starting system VIN: 1FMCU031X8
Okay try this one. New customer had battery replaced by company mechanic [airplane repair]. Now occasionally it wont crank since battery replacement. Checked for codes [launch] none found. Security light goes out after bulb check. Not much security data in ins...
2006 GMC Envoy XL SLT 4.2L Stall VIN: 1GKES16S66
have a intermiitent stall. vehicle will idle for a hour sometimes longer, before stall occurs. intermittently on a test drive will stall. restarts every time. runs perfect, other than stalling. no codes in any module, performed system scan. replaced cam sensor...
2000 Honda CR-V EX 2.0L transmission VIN: JHLRD1862Y
this vehicle has a strange clunk or slump into or out of gear near first but strangely it will make the clunk quietly mind you even when your not moving like waiting for the light to turn green with no movement this is a real time awd model
2003 Honda Element EX 2.4L Hesitation, Surge
good arternoon guys. please help !!! I am working on this 2003 honda elment with code p2646 vtec system problem. I check all oil level, replace with right oil and filter, replace vtec oil pressure assembly, replace vtect control selonoid... remove valve cover ...
2005 Hyundai Accent GLS 1.6L speedometer VIN: KMHCG45C55
We're at a loss, Dlr only shows a speed sensor in instrument cluster not one for trani. Been waiting days for A Z to get in another to try. We even changed to another trani, 1st one had a noise, but speedo same. How can we test vss & dash sensor - we're thinki...
2003 Jaguar Vanden Plas 4.0L charge indicator light VIN: SAJDA24C13
vehicle came in not charging. charge indicator was not on. R & R alternator and had it rebuilt. reinstalled and charged at 13.8 volts. yet the charge indicator is coming on. is this just a finicky system?
2006 Jeep Commander 3.7L MIL Lamp on VIN: 1J8HG48K46
Ok have a major head scratcher here. This Jeep came in with both of the codes listed above 2 weeks ago. Basically long story short we found out alot previous repair history on this vehicle that the customer did not up front tell us of course.. It's throwing p0... Trouble codes: P0171 (Bank 1 lean), P0174 (Bank 2 lean)
1998 Lexus ES300 3.0L MIL Lamp on VIN: JT8BF28G8W
the vehicle came in with a #p0171 code, I have over time replaced the air flow meter & all of the o2 sensors using factory parts, I have smoked the intake system & there are no leaks. I will clear the codes & run the vehicle at the shop & there will be a pendi... Trouble codes: P0171
2002 Lexus GS300 3.0L Unknown VIN: JT8BD69S92
Hi guys i have this gs 300 giving code po430 i change the both cats all 4 o2 sensor still code p0430 . No exhaust leak i think is the ecm . Any help thank you guys
1987 Mazda RX-7 Turbo 1.3L hard to start VIN: JM1FC3328H
owner says that the car is hard to start. when it does start it will run for a minute then die.
2001 Mazda Protege ES 2.0L rotors VIN: JM1BJ22551
Hi Techs, This should be a basic problem and fix, but it has not worked out that way. Put pads and ft rotors on several months ago, about 3000 miles later at sevice time, rotors warped again, replaced rotors and put on a better quality pad. (duralast gold). O...
2005 Mazda MPV ES 3.0L Misfire VIN: JM3LW28J15
Hi guys, nned your help on this one, the injector 3 is never fire, i chek all the connection betwen the pcm an the injecctor every thing is fine. Change the pcm, same thing,somoene have a idea,getting mad whith this one, i check also with a noid lignt nada. Th... Trouble codes: 203 (Injector 3)
1978 Mercedes-Benz 450SL 4.5L No Start
We have taken in a good customer's toy. We are faced with limited technical resource on this model but we hate to be beaten by this one. Vehicle tries to start but will not go above idle. Fuel pressure at fuel distributor 100+ psi and pins our guage out. Holds...
2006 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55286
This car was towed in and it has to come when busy as all get out, right. It went to airport fine parked it came out cranked, no start. It gets to me and I of course check for codes, none, check for spark at all cylinders, none and then go to injector pulse an...
2006 Pontiac Montana SV6 3.5L all wheel drive VIN: 1GMDX33L16
06 pontiac came in for low power and poor shifting and awd inop found pluged cat and has good power and shifts good awd is still disabled. disabled for high fluid temp. the trans fluid temp is reading at 127 deg F with a tech 2. after short drive and sitting i...
1999 Porsche Boxster 2.5L Trunk Cable VIN: WP0CA2982X
Anyone ever replace the release cable for the rear trunk on an early Boxster? This is the cable that runs from the release handle on the door sill. I've got much of the trim off, both ends of the cable free, and have removed all the clips and ties that I ca...
2011 Ram 2500 Laramie 6.7L Power steering VIN: 3D7UT2CL0B
We went to do a trans flush and removed the power steering hose at the cooler by mistake. We caught the mistake before we turned on the trans flush machine. In removing the p/s hose it drained the power steering pump. We then refilled the p/s with p/s fluid. W...
1981 Saab 900 S 2.0L Crank position sensor VIN: YS3AK76E5B
I admit, I still don't understand the innards of a Hall effect sensor. Maybe I will before I die, but right now I need to get this car fixed ASAP. The crank position sensor is bad. I bought a "sensor impulse head unit" from my supplier (RAMAC). The sensors' wi...
1996 Volkswagen EuroVan 2.5L Mechanical VIN: 1WVAE0702T
Good day gents. I am in need of torque specs for the cylinder head and torque sequence as well.i have a 1996 vw winnebago w/2.5l 5 cyl. Gasoline engine. It has a burnt piston. I am refreshing a salvage yard engine to replace the bad one and decided to replace ...
2000 Volkswagen Jetta TDI 1.9L Air Bags VIN: 3VWRF29M2Y
I am working on my sons 2000 Jetta TDI Sedan with a 4 speed automatic. He drove over a curb with the left front wheel. I have replaced all of the damaged suspension parts, wheel, etc. 1) The steering wheel airbag and the right front airbag in the dash both d...
2003 Volkswagen Jetta Wolfsburg Edition 1.8L drivylity VIN: 3VWPE69M13
WE found a few codes relater with accelerator position sensor. Found ecm burn. customer brough a used ecm cranks but won't start inmobilizer light blinks. Have aftermarket key programmer to get a pin but not luky. Any one can tell me what to do it. Here that I...
2008 Volkswagen GTI 2.0L Hesitation, Misfire, MIL Lamp on VIN: WVWHD71K88
I have this gti that has excessive vacuum in the engine,if you pull off the oil cap it wants to suck the cap back down and when you remove the cap the vehicle will shut off.I have replaced the pcv valve assembly(dealer part) with no difference.I was wondering ... Trouble codes: P2279, P2015
1998 Volvo S70 GLT 2.4L Oil leak VIN: YV1LS5642W
Tennessee car arrived with reports of no engine oil. Since 2+ quarts low won't show on dipstick, added 2.5 qts + 2 qts coolant, took for a four mile drive and oil lost a quart and coolant res was empty again. Found some oil drip from left/rear of engine and a ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 Cadillac DeVille 4.9L serpentine belt VIN: 1G6KD52B5S
Thank you all for your insight. The repair for this particular Cadillac was to replace harmonic damper with factor part and approx 1mm adjustment of a/c pulley. My customer is happy, I am happy .
2006 Cadillac STS 3.6L traction control VIN: 1G6DW67706
After checking the tires,grounds and powers ,scopeing the sensors (snap on vantage )need to invest in pico scope.no problem found .I am thinking it is a wireing harness problem but customer does not want to spend any more $$$ Thanks so much for all your time ...
2002 Chevrolet Silverado 1500 5.3L Speedometer VIN: 1GCEK14T52
I think Michael from New Jersey has it right. There is an output speed sensor on the transfer case, it does not go to the cluster but to the pcm. it is used for shift patterns etc. there is NO ABS sensor in the rear diff anywhere or at the axles (was surprised...
1996 Dodge Grand Caravan ES 3.8L wipers VIN: 1B4GP54L5T
I would like to sincerely thank each and every person who replied to my help request. I found every reply to be very helpful and I sure I will use something out of all of those replies on future repairs! On this van in particular I ended up taking the advice...
2002 Dodge Neon SE 2.0L torque converter
I have fixed the vehicle ,I test drove it again and watch the engine rpm to the transmission input rpm and the was about 200 to 300 rpm difference . I installed a torque converter and flush the system and drove it and the rpm with the tcc engage was within 30 ...
2003 Dodge Ram 3500 5.9L brake lights VIN: 3D7MU48C93
Thanks for all your help. We finally found the Banks Exhaust back pressure/air compressor had high amp draw and that ruined the Banks controller which had a connection to our bus line. Since the bus line would not allow our lighting system to work because of t...
2007 Dodge Sprinter 3500 3.0L resinator VIN: WDPPF34537
Found both inlet and outlet hose o rings on the charge air cooler were blown. Replaced orings and resonater and lines. Been a week and no further problems.
1999 Ford Ranger XLT 4.0L noise VIN: 1FTZR15X3X
Truck was scheduled for the noise coming from the IAC motor. Truck came in with the CEL on, decided to repair the source of the P0171 and P0174 first. Replaced the MAF sensor and the upper intake plenum gaskets to fix the codes. That part of it was fixed but...
1999 Ford F-250 Super Duty Lariat 7.3L faid contubution test VIN: 1FTNW21F0X
Well I finally fixed it.Ended up replacing #8 injector.Runs great but still has cyl.3 and 8 on contribution test.Taking the advice of others and next one its getting all injectors.Thanks for all the input.Greatly appreciated.
2004 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTPW12514
This ended up being a learning experience - unfortunately for the customer and his wallet. There really is piss poor information dealing with this trouble code. Mitchell diagnostics basically says to inspect the oil filter for proper filter then replace vct s... Trouble codes: P0011.
2005 Ford F-550 Super Duty Lariat 6.0L No Start VIN: 1FDAF56P55
sorry for delay forgot about it.turned out be danmm hpop. when remove ipr screen was damage.had to take to ford to get it done under warranty due we just replace the pump and ipr
2005 Ford E-250 5.4L No Accelerator VIN: 1FTNE24L55
Thanks again for all the replies. After most recommending a new throttle body, I replaced it with no success. Customer stated that it normally seem to act up after hitting a bump. We took all the air duct assemblies out and followed the wiring harness to the t... Trouble codes: 2107 (Throttle actuator control motor processor), 2110 (Throttle actuator control system - forced limited rpm).
2008 Ford Edge SEL 3.5L Water Pump VIN: 2FMDK38C58
After hearing from a few of you and looking it over we decided to drop it allnm out the bottom.Unbolted everything and sat the subframe on jack stands.lifted the body up off the subframe and motor.Not really as bad to do as it seemed like it would be.It was ju...
1996 Kia Sportage 2.0L Excessive Emissions, Monitors VIN: KNDJA7238T
The MAP sensor (used for EGR flow determination only) was way out of tolerance. We replaced it. The monitors still would not run to completion until we replaced the PCM. PCM replaced.
2005 Kia Sorento EX 3.5L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, MIL Lamp on VIN: KNDJD73335
We ended up sending it to the dealer. They actually replaced the crankshaft position sensor. The client picked up the vehicle from the dealership so we have no idea if this really fixed the issue. All we do know is that the dealer charged the client $600. So w... Trouble codes: P0122, P0338, P0463.
2004 Land Rover Range Rover HSE 4.4L pre charge pump check valve VIN: SALMF11414
Thanks to Norman from Great Britain for his offer to help. He said they can sometimes get parts over there that are not available to us over here. This pump was used in early few years of this decade by BMW on their X5's and Z3's. They call it a DSC compressor...
2003 Lexus RX300 3.0L airbag light VIN: JTJHF10UX3
well guys after much head scratching and hair loss i decided to clean and tighten connectors at airbag mod.but some miles on it light did not come back left custemer pick up car and informed him if code comes back next step is the airbag mod im not confience...
2003 Lexus GS300 3.0L Hesitation, MIL Lamp on VIN: JT8BD69S43
Thanks everyone for the help. This Lexus has a plastic air chamber between the MAF and throttle body. The air chamber has a metal heat shield protecting it from the exhaust manifold. The heat from the manifold had caused a narrow gap to open up in the air cham... Trouble codes: P0133 (O2 Sensor Circuit Slow Response Bank 1 Sensor 1), P0153 (O2 Sensor Circuit Slow Response Bank 2 Sensor 1).
2005 Lincoln Navigator 5.4L Hesitation, Surge, Cuts out, No throttle response VIN: 5LMFU28595
Well, this is going to be a short fix explanation. After running out of ideas we called another friendly shop. Our friend said let's try reprogramming the computers so as to start from scratch. He did this and WA LA ! Drivability problem completely went away. ...
2007 Mazda 3 S 2.3L Electronic VIN: JM1BK34317
2005 Nissan Xterra Off-Road 4.0L Hesitation, MIL Lamp on VIN: 5N1AN08U85
Well after fighting this for 3 weeks, vehicle had 2 new codes P0463 for fuel level sensor input high and p0183 for excessive voltage on fuel tank temperature circuit, scoped those circuits and had irregular signals but vehicle was running normal, after hitting... Trouble codes: P0605 (Ecm).
2001 Pontiac Grand Am SE 3.4L Security VIN: 1G2NF52E21
Thanks to everyone who assisted on this one. Diagnosed faulty BCM (Body Control Module). Customer decided car was not worth new BCM and reflash. Another one for the crusher... Again, thanks to everyone who responded.
2004 Saturn Ion-3 2.2L radio VIN: 1G8AL52F94
thanks to all.craig from michigan sorted this one out for me.apparently saturns have panasonic radios,unlike other gm's.therefore,the codes from the gm phone # don't work.thanks again craig for coming up big for me!
2003 Toyota Tacoma DLX 3.4L Drivabilty VIN: 5TEWN72N33
replaced rear drums with factory drums and resurfaced front rotors
2004 Toyota RAV4 2.4L Poor Idle Quality, Hesitation, Stall VIN: JTEHD20V24
Hey thanks for the help on this one, we had bad gas??? Poss. a bit more ethenol than this car desired. New gas and its done.
2005 Toyota Tundra SR5 4.7L vvt VIN: 5TBET34115
Thanks to John from Colorado. I had not used the service bolt because when I reinstalled the intake cam and looked at he exhaust cam gear I saw that it had fac marks on both sections and they were lined up. Turns out that I had to actually advance outer gear ...
2005 Volkswagen Jetta 2.5 2.5L Radiator Cooling Fans VIN: 3VWSG71KX5
Thank you all for your help.I replaced the both fans and everything works just fine.Thanks again Dave.
2004 Volvo XC90 2.5T 2.5L Awd VIN: YV1CZ59H54
Ok I got my car fixed thanks to all who replied. I replaced the coupler which was pretty easy. I cut two slots in it and used a Toyota puller to get it off. I think I may need the angle gear in the future because of the wear on the splines but for now it is op...
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