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Prev Professional Automotive Repair Technical Discussions for April 9, 2012
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2001 Acura CL Premium 3.2L No Start, Poor Idle Quality, Stall, Misfire VIN: 19UYA42411
Acura towed into shop crank no start. Pulled spark plugs all wet. Dried out motor of gas, restarted ran rough for a few seconds and flooded out again. Checked fuel pressure, compression, spark, timing, fuel quality. Hooked it up to fuel injection cleaning mach...
1999 Audi A8 Quattro 4.2L Misfire, MIL Lamp on VIN: NAVBG34D1X
Hi all, this one came in on the hook. Customer said check engine light was flashing and it was running rough. I went out the next day and brought the car in and it was running like a top. I pulled codes and found about 25 codes mostly for misfires on all cylin... Trouble codes: P0304 (Cylinder 4 Misfire), P0305 (Cylinder 5 Misfire)
1988 BMW 325i 2.5L Poor Idle Quality, Hesitation, Cuts out VIN: WBABB2304J
I hope you guys can help me. We did a head gasket job on this thing due to overheating. Customer stated it was hard starting even before head gasket job. Well the idle is rough and when you accelerate it cuts out. We noticed ecm control to fuel pump relay cuts...
1997 BMW 528i 2.8L No Start, Cuts out, Misfire VIN: WBADD6321V
Hi folks. First of all, I 'd like to thanks for everybody whom spend valuable time for me. Here 97 Bmw 528i giving me headache, misfiring only when cold start about 4-5 minutes, after that runs perfect all day. Most time It doesn't set code, but sometime, like... Trouble codes: P0304
2004 BMW 325Ci 2.5L Convertible Top VIN: WBABW33424
The Customer brought this vehicle because he would leave the car at home and the top would randomly go down. It has been here a few days and the windows will go down by themselves. Has anyone experienced a vehicle with these problems. What should I be looking ...
1982 Chevrolet Corvette 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1AY8785C
this will be the third time i've put this on iatn. each time i thought it was fixed. this car has new computer,dist. cap rotor and wires. tps. if you drive this car normal its not bad, but if you floor it it feels as thou its dropping clyinders. no check engin... Trouble codes: P0042
1996 Chevrolet S10 LS 4.3L starter VIN: 1GCCS19X5T
One for you Goodwrench guys. Got this '96 S10 pickup that as they say in New Orleans is "Hainted". Once in a blue moon when you cut the vehicle off, about 5 seconds after you turn the ignition switch off the headlights will flash twice amd then the starter wil...
2000 Chevrolet Impala LS 3.8L No Start VIN: 2G1WH55K6Y
I have this Impala that will not crank at times. I could not duplicate the problem so I connected some lights on the crank request circuit and starter relay output and removed the remote start interface module. That test found voltage on the crank request circ...
2003 Chevrolet Trailblazer North Face 4.2L abs VIN: 1GNDT13S13
Hello, and thank you for taking the time to read this. This Trailblazer has an ABS light on with a code C0267 pump motor failure. I know it needs a new pump motor, that is not the issue, AFTER we did lower ball joints and had the wheel speed sensors unplugged,...
2003 Chevrolet Venture LS 3.4L Misfire, MIL Lamp on VIN: 1GNDX03EX3
I have a Chevy Venture that has a misfire at idle on mainly #3 cylinder and some on #4 cylinder. The misfire goes away at about 1200-1300 RPM in park and in gear the misfire will go away just off idle. Compression is all good. No bouncing engine vacuum. Inject... Trouble codes: P0300
2003 Chrysler Voyager LX 3.3L No Start VIN: 1C8GJ45353
Van was towed it,found it was out of gas and guage read 1/4 tank,tried two different fuel pumps assemblys and fuel guage seems to be reading 1/4 of a tank to high.When I move the float manually dash guage seems to move very slowly or not at all,moving it from ...
1997 Dodge Grand Caravan SE 3.3L Electronic VIN: 1B4GP44R7V
Hello Everyone: i have this van with a p1698 code and the symptoms are trans not shifting,speedometer inop,back up lights inop,PRNDL inop square boxes around all letters,rear wiper/washer button lights flashing,a/c & recirc button lights flashing.So far i have...
2004 Dodge Grand Caravan SE 3.3L No Start VIN: 1D4GP24R04
Van has inter.not start no fuel no fire this only happens after sitting overnight once it starts it is fine all day.when this happens fuel pump and auto shut relay buzz.I can jump out fuel pump relay and pump is good ,no inj pulse.After an hour or two when the...
2007 Dodge Sprinter 2500 3.0L power locks VIN: WD0PE74537
this is kind of a strange one if you shut the doors they lock by themselves
2008 Dodge Charger SE 2.7L MIL Lamp on VIN: 2B3KA43RX8
OK, Vehicle brought from other shop. The PCM was replaced due to O2 sensor codes and they wanted me to program it since I have a wiTech factory system. Once the PCM was programmed and the immobilizer was setup and all miscellaneous relearns. The speedometer do... Trouble codes: P0501 (Speed Sensor 1 Performance)
1999 Ford F-250 Super Duty Lariat 5.4L cylinder head VIN: 1FTNW21L9X
Hi Group I'm working on this 99 F250 with 5.4, which blew a plug. Which tool kit should I buy to fix that issue professionaly!! Did anyone used the carquest tool STL6500 whitout removing the heads?? Thanks for any input Rene
2000 Ford Taurus SE 4-Valve 3.0L No Start VIN: 1FAFP55S9Y
This 2000, 24V. Taurus starts and runs fine 95% of the time. Occasionally after sitting the engine just cranks, but doesn't start. The when this happens, the theft light goes on momentarily, when the key is first turned to ON, the goes out, as it does all othe...
2001 Ford Expedition XLT 4.6L Poor Idle Quality, Cuts out VIN: 1FMRU15W01
ok ford guys need help on this 1 this expo is killing me truck came to me with a mirfire and lack of power pulled codes found p0354 coil circuit on #4 that problem is fixed and now runs smooth but at about [...] the truck will fall flat on its face the fuel...
2002 Ford Explorer Limited 4.6L fuel tank VIN: W12ZA34332
when you try to put gas in it kicks the pump off.tank is only 1/4 will only take a few cents at a time.
2006 Ford Expedition King Ranch 5.4L Surge, Misfire VIN: 1FMFU18516
Greetings Ford Techs. This Expedition is eating my lunch and here's the history behind it. In about December it came in for an extended crank when warm problem. We narrowed the cause down to a leaking injector but the customer didn't want to do anything about ... Trouble codes: P0300 (Random Misfire Detected)
2007 Ford F-150 XLT 4.6L Coolant in spark plug hole VIN: 1FTRW12W57
The customer states that engine has never overheated. But after 1,000 miles of getting tune up at Firestone , NOT a 3-valve engine, it started to misfire, they cleaned up the coolant in #5 hole, problem gone. Now he brings this truck to us. It had code P0306 a...
2003 GMC Yukon XL 1500 SLT 5.3L hydraulics VIN: 3GKFK16Z63
Hey Guys, This is actually embarrassing, but I replaced the rear rotors and pads and the front rotors and pads with calipers. I simply cannot get a pedal. I have bled and re-bled all four and am getting solid stong fluid from all four. If I pump it up with th...
2001 Jeep Grand Cherokee Laredo 4.0L gauges VIN: 1J4GW48S71
Gauges in cluster don't work. Idiot lights and all other systems work normal on car. All fuses good. Solus not able to operate gauges on Jeep. That is to say that there isn,t software in the tool for testing. Customer tried substituing BCM,Cluster,and replaced...
2004 Land Rover Range Rover HSE 4.4L Bcm? VIN: SALMH11494
High steering effort during low speed maneuvers, dealer said BCM needs to be replaced. This car came to me from a new customer who got a $15,000 dollar estimate from dealer to fix various items on the car, one of the concerns was hard to steer in parking lots,...
2005 Lexus GX470 4.7L MIL Lamp on VIN: JTJBT20X85
This case reads exactly like the one from Mike a couple months ago. Mil on w/ codes P1442& P1445 ; dealer says $2500 for new pump & ck valves. This appears to be a pattern failure according to the research that I did. My problem now is that since I can't do fu... Trouble codes: P1442, P1445 (Air inj sw valve 2 stuck cloased b/2)
1994 Lincoln Continental 3.8L Parking Lights VIN: 1LNLM9749R
Customer states; was blowing #8 fuse and after about a month of this customer kept replacing fuses until it stopped blowing, now several items wont work and the parking lights stay on, if remove fuse lights go out, we have the interior out of the vehicle, have...
2007 Mazda 3 S 2.3L radio, trip odo
This car came in with no radio operaion and the trip odo in the IPC was resetting every time the car was restarted. There is a U1900 CAN communicatio problem but Snap On scanner does not give details. Tested powers and ground at radio, it has 12 volts at the o...
1995 Mercedes-Benz E320 3.2L no kick down VIN: WDBEA66E8S
No kick down or passing gear. No power to kickdown vavle on transmission, no power to kickdown switch under gas pedal. Cannot find a proper wire diagram to find where the switch gets it's 12 volts from. Any help would be great. Thanks.
2004 Mercedes-Benz E320 4Matic 3.2L Mil Light VIN: WDBUH82J94
Customer had stated that vehicle had died while coming to a stop and vehicle would restart for two hours and once it did that the check engine engine light came on, but while coming to shop light went off, after diagnosis found that small battery was dead in v...
2010 Mercury Milan 2.5L No Start VIN: 3MEHM0HA4A
All, I have this Milan that was brought to me with a no-start. The customer bought it with a salvage title, light front damage, and a no start. He put a radiator and condenser in the vehicle before I got it. It does not look like the hit in the front reached t...
1999 Mitsubishi Montero Sport LS 3.0L cooling system VIN: JA4LS31H6X
I replaced the headgasket on the passenger side bank due to an external oil leak originating at the rear of the head. Ever since that repair this vehicle has had an intermittent overheat condition. The last time it was in here I replaced the fan clutch (it was...
2007 Mitsubishi Galant Ralliart 3.8L Timing Belt VIN: 4A3AB76TX7
Good times here. Customer had just bought this car and brought it in for an inspection. I test drove car, was pulling into my stall and it sounded like I ran over a piece of tin and the car stalled. Lucky me the timing belt jumped 6 teeth and bent valves. It l...
2008 Mitsubishi Eclipse SE 2.4L M/C & Abs VIN: 4A3AK64F48
When the brake pedal is initially pushed the pedal goes down about 3/4 to the floor then if you push it immediately again is is much higher and harder. The pedal never sinks when holding it only is soft and low on initial application. It will be soft if you we...
1984 Porsche 944 2.5L No Start, No Fuel Pressure
Can a bad DME relay cause no fuel pressure but good Noid? I have exhausted all means to find a good schematic for this car. I have good spark and noid, but no fuel pressure. Removing DME relay and jumping fuel pump I get good fuel pressure, but without relay I...
2001 Saturn L300 3.0L No Start, Hesitation, Stall VIN: 1G8JW52R41
thanks in advance for all that help car will start and run good 1st time in morning but has a hesitation shut car off and wont restart for about 5 or 6 tries then will start up run rough then clear up we put a new throttle body on it and maf sensor did the rel...
2001 Saturn LW300 3.0L Mechanical VIN: 1G8JW82R01
Help! This car goes full rich and i cannot seem to find it. fuel trims are reading -30 both banks with o2 sensors upstream stuck between .970-.950 and downstream reading 450 mv.I have checked timing belt for jumped tooth,fuel pressure,vacuum tested,and backpre...
2001 Toyota Corolla CE 1.8L Excessive Emissions, Poor Idle Quality, Hesitation, MIL Lamp on VIN: 2T1BR12E11
This toyota is causing us a headache! Has been in with the same reoccurring problem. Setting codes P0171 and P0420. The MAF has been replaced with a toyota part. The cat was replaced with 2 aftermarket normal emissions cats, then a california emissions afterma... Trouble codes: P0420, P0171
2004 Toyota Prius 1.5L Fuel odor VIN: JTDKB20U14
Customer complains that he can smell fuel. At startup there is a definite fuel smell in the fuel rail area but we cannot see anything leaking. I have the cowl off and can access the fuel line connectors but no sign of leakage. I can turn the fuel pump on with ...
1988 Volkswagen Cabriolet 1.8L Transaxle fluid VIN: WVWCA0151J
Daughters car, I installed used speedo/cluster for inop speedo, cable was marginal so replaced with new as well. 1 month later there is gear oil/transmission fluid leaking from speedometer head area, dripping on her foot! No external leaks at or around transax...
2002 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSE69M52
It runs well has good oil pressure. I used a dial indicator as well as the flywheel timing marks to set up the t-belt. All the timing marks line up. The cam sprocket is a half tooth advanced on the t belt. From what I understand this is not uncommon on this mo... Trouble codes: P1340 (Cam sensor Incorrect Correlation)
2005 Volvo S40 i 2.4L No Start VIN: YV1MS38215
Customer recently purchased car,this morning it would not start,cranks over fine,fuel pressure within specs,stored multiple codes for ignition coils as listed, if i clear codes they reset after short cranking cycle.,camshaft sensor reads low while cranking and... Trouble codes: 3200 (Ignition coil), 3300 (Ignition coil 1), 3310 (Ignition coil 2), 3320 (Ignition coil 3), 3330 (Ignition coil 4), 3340 (Ignition coil 5)
2005 Volvo XC90 V8 4.4L engine VIN: YV1CZ85205
This vechicle came to me with a noise in the engine. tapping/ticking on start up will go away after running for 30 sec at idle. However bring up rpm and gets quite loud. Sounds like it is comming from middle of engine. Any help would be great.

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 Cadillac Escalade ESV 6.0L stability VIN: 3GYFK66N44
Thanks for the replies guys, after checking alinement two times, and checking the steering wheel sensor thinking it was the Yaw sensor for about two days found out yaw sensor was under pass. seat found wires chewed into and rat dudo everywhere reconnected all ...
1996 Chevrolet W3500 Tiltmaster W3S042 5.7L No Start VIN: 4KBB4B1RXT
Thanks for all the help.Problem was broken wire in Crank sensor harness. Jim
2000 Chevrolet K2500 7.4L Steering VIN: 1GCGK24J8Y
Thanks for everyones input. Your suggestions helped us eliminate the tires, brakes and front end. Before we worked on it he had it aligned. He brought it back there with the specs some of you recommended. He called and said it was improved but not perfect,(I d...
2001 Chevrolet Impala 3.4L starter VIN: 2G1WF52E61
I have bypassed the passlock system by cutting the yellow wire from the ignition switch and adding a toggle switch between the circuit.Customer did not want to replace ign switch
2005 Chevrolet Silverado 2500 HD 6.6L Transmission VIN: 1GCHK23235
Hey, guys this one is fixed (thanks Jake) it was a low voltage problem from the ignition switch, I monitor the ignition power to the TCM and after several key cycles it acted up showing 6 volts then started climbing back to 12v+ all's well and good to go!
1995 Dodge Dakota 2.5L Speedometer VIN: 1B7FL26G3S
The Orange wire - 8v supply should have a minimum of 7.0 volts, not 4.0 volts as noted in the repair manuals. This wire had tested fine with an ohmmeter, but had excessive voltage drop. i ran a new wire from cavity 7 of the pcm directly to the vss and the d...
2002 Dodge Ram 1500 Truck 5.9L turn signals brake lights hi beams hazards wipers VIN: 1D7HU18Z02
thanks to all of you that took the time to reply.frank from ontario,david from missouri and kyle from ohio were all right on the money with their tips.the front control module fixed the problem.victor also advised about the connectors under fuse box of which s...
2003 Dodge Dakota Sport 3.9L govenor sol VIN: 1D7HL38X83
thanks to all your help was perfect replaced the pcm and gov. sol. veh shifts great thanks again...
1996 Ford Contour GL 2.0L clutch VIN: 1FALP6532T
Well a lot of people have told me not to use aftermarket parts so we replaced the master cylinder with dealer parts and this of course made a huge difference. Yet the flywheel was still slipping. The customer stated that this was okay and took the vehicle back...
2001 Ford F-150 King Ranch 5.4L transmission VIN: 1FTRW08L71
Thanks to all who responded. After double and triple checking everything recomended we put a transmission in it and it's fixed. the only thing I can think is we had a converter shudder. the fluid looked and smelled fine. thanks again.
2004 Ford F-250 Super Duty XL 6.0L No Start
2005 Jeep Grand Cherokee Limited 5.7L shift lever locked VIN: 1J8HR582X5
thank you for your help! there is a tang welded on the trans dipstick tube that the wire loom is supposed to be clipped to. it was not. the tang had gotten inside the slit on the outer plastic tubing and rubbed though, grounding out the brake switch number two...
1987 Mercedes-Benz 560SL 5.6L Unknown VIN: WDBBA43BXH
Thanxxx. to all who responded, first of all it was a great piece of information, when some of the guys said the vehicle is not equiped with a blend door. but an electronic heater valve (mono valve) in other words the system is a bit different from what im use ...
1994 Mercedes-Benz S420 4.2L Poor Idle Quality, Stall, ASR light VIN: WDBGA43E7R
thanks for the replies -yes the wire harness on the actuator was falling apart-customer opted for brand new and down the road it went happy camper Trouble codes: 30 (ASR code CAN data bus to EA/CC/ISC control module), 29 (ASR code ABS lateral Sensor implausable), 2 (EA/CC/ISC code EA/CC/ISC control module N4/1).
2000 Mercedes-Benz ML430 4.3L Engine VIN: 4JGAB72E8Y
Thanks To every one for the help and there knowledge with this vehicle I had no idea that this vehicle would not set a crank sensor code if failure had occured. Guess you learn something new every day. Once again thank you
2007 Mini Cooper S 1.6L MIL Lamp on VIN: WMWMF73527
thanks for all of the replies,the car eded up having a worn out turbo.It took a while to get a new map,it changed the readings at idle,but did not figure in higher rpm readings.replaced turbo and all is well .thanks again Trouble codes: 02885 (charge air pressure control deviation plausibility).
1996 Nissan Maxima GLE 3.0L Electrical
Because I could not re-create the stalling with no power,no lights,nothing I was really perplexed. I informed her that I had received numerous help requests regarding the electrical part of the ignition switch going bad intermittently and causing the same effe...
1998 Oldsmobile Silhouette Premiere 3.4L Excessive Emissions VIN: 1GHDX03E5W
Hello All, Hope everyone had a great weekend. Well it ended up being the purge solenoid. My tech just disconnected it.He did not totally bypass it as I thought he did. It was stuck open. So We pulled off the old one and plugged the hoses and the fuel trim went...
2005 Pontiac G6 3.5L shift operation VIN: 1G2ZG52845
Thanks to all who replied. You had confirmed our suspicions. We Replaced the transmission and now it works perfectly.
2005 Saturn Vue 2.2L Poor Idle Quality, Hesitation VIN: 5GZCZ43D65
we sent the vehicle to saturn dealer they reflashed the ecm we went to pick it up and it failed again returned to saturn dealer and they had to replace ecm thanks for all your help you guys are great Trouble codes: P176.
2001 Subaru Outback L.L. Bean 3.0L Cuts out, Stall
I got back on the car today I did find the coolent temp senser to have a flat line when doing a wavy form .The car will now start and run with out stalling still When starting it starts like its flooded it will run rough till the fuel is gone then will run s...
2002 Subaru Impreza WRX 2.0L Poor Idle Quality, Cuts out, Stall VIN: JF1GG29652
I decided not to get too deep into this particular problem and refer the customer to the Dealer for a second opinion. There are absolutely no "intermittent" vacuum leak. I pinch the hoses to the purge valve, brake booster and the blow off valve. I replace 2 "N...
2000 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDR32T4Y
install maf from used car readings dropped. (found bad maf.) declined repair. Trouble codes: P0171.
2002 Volkswagen Jetta TDI 1.9L door ajar light on VIN: 3VWSP69M32
Thanks for all the replies. When the doors are closed the door modules need to see the door switches open. The drivers front, pass front and pass rear door switches/latches were replaced. which took care of my door ajar light and a draw issue the customer w...
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