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Prev Professional Automotive Repair Technical Discussions for May 25, 2011
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Open Help Requests for All Makes and Models
Help Request Answers
1993 Audi 100 S 2.8L shifter VIN: WAUBJ84A7P
After the repair, we drove it a few times, every thing was fine. Now it won't go back into park. Also, the brake light indicator on the dash comes on
2004 BMW 745i 4.4L Crank/No Start VIN: WBAHP61010
Vehicle is "Crank/No Start". My GT1 Scan Tool is not working right now so I'm shooting from the hip on this one. But I have went step-by-step to verify every possible thing. "Engine Power Reduced" Fault on Instrument Cluster 1) I removed Fuel Line and perfor...
2004 BMW 325i 2.5L Xenon headlight VIN: WBAET37414
In the last two weeks, we've had 3 of these 2004 325's with xenon headlights inop on one side only. In spite of only finding wiring diagrams for one type of light, there are 2 distinctively different types of assemblies involved, both xenon, on the three dif...
2006 BMW 325i 3.0L Poor Idle Quality VIN: WBAVB13576
BMW EXPERTS PLEASE HELP !! Vehicle has a intermittent surge or misfire at idle, problem occurs more when vehicle is in gear. Engine runs well otherwise, Plenty of power. Monitored "smooth running values", found cylinder number 5 out of range (-3000)-(3000). Th...
1976 Cadillac Seville 5.7L No Start VIN: 6S69R64909
Only after car sits over night, upon first start up engine will not start. Has good fuel pressure and spark at all times. Injectors are firing. Cranks good but will not fire. If small amount of starting fluid is sprayed into the throttle the car will fire righ...
2005 Cadillac Escalade 6.0L Vses VIN: 1GYEK63NX5
Got this Escalade that had the Steering wheel angle sensor replaced to cure a code C0455. Sensor is working properly now and also did a reflash of VSES system per tsb to keep C0455 from returning. Now dash keeps flashing stability system disabled and there are...
2007 Cadillac DTS L 4.6L brake lights VIN: 1GEEH06Y67
hello gruop this caddy came in with dead battery,we charged battery and then noticed the brake lights are stuck on...so we thought simple brake switch problem...on alldata it shows it has a relay and a stop lamp fuse # 20 well this has no fuse and no relay...l...
1995 Chevrolet Blazer 4.3L Stall VIN: 1QNDT13W8S
Got this truck from another shop and they thought the problem was ignition related, but it's not. The truck runs fine when cold, but let it idle for 10-15 min and it dies. Spray fuel in the intake and it starts and then dies. Fuel Pressure is 55-60. I smoked i...
1995 Chevrolet K1500 Silverado 6.5L my truck VIN: 2GCEK19SXS
This is my truck that i have the engine out to do head gaskets. i am already planning to replace the crank sensor, and water pump rear main and crank seal. The crank sensor is oe, the water pump is leaking from the weep hole. Looking for things that would be ...
1998 Chevrolet C1500 Silverado 5.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCEC19M4W
Here's a head scratcher. I just installed a used engine in this truck due to the old engine mixing water in with the oil. The truck ran fine - the only issue was water in the oil. This used engine has approx 180,000kms. The problem is this engine won't run rig... Trouble codes: P0300 (Missfire detected)
2000 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1NE52J8Y
ok this vehicle has had the mil intermittantly come on and off very intermittantly, every time its the same codes, p0135, p0443, and p0449. i have ohm checked the heater circuit on the 02, and and tested for ground and power, all within range. same results wit... Trouble codes: P0135, P0443, P0449
2004 Chevrolet Aveo 1.6L Misfire VIN: KL1TJ62624
Looking for some help on emission failure ..04 Aveo..had used engine installed after previous engine blew a rod ..car has failed e tests since .First tests readings were CO% limit .37 result .58 HC limit 66 result 9 NOX limit 505 result 15 dilution 15.6 High c...
2009 Chevrolet Traverse LS 3.6L Mechanical VIN: 1GNER13D39
Hello all and thanks in advance for looking into this...This customer went into a jiffylube for an oil change, vehicle was ticking, low on oil (aparently). Oil was changed 5w30 quaker state bulk oil put in. From there the noise got worse then it wouldnt start....
1995 Chrysler Town & Country 3.8L Air bag light VIN: 2P4GH45R7S
Customer complains air bag light is on. My scanner cannot scan air bag system. All fuses are good. Disconect battery does not help. I need someone to shed the light as i am not familier. Appreciated. Charles.
1997 Dodge Stratus 2.4L No Start, Stall VIN: 1B3EJ46X9V
this one is really confusing we orginaly diagnosed as crank sensor shorted we taped into the power wire at the cam sensor found to be .02 volts replaced crank sensor voltage now at 9.2 car starts, now here's the problem it keeps shorting out in the past 4 week...
1999 Dodge Caravan 2.4L "S" wire @ Starter VIN: 2B4FP2SB8X
Fellow problem solvers of the world I give you a No Crank, No Start. Customer complains of Intermitent no start until the other day when it didn't start and has not started since. I statrted with the Basics. I checked for proper Battery Voltage.(it was slightl...
2000 Dodge Grand Caravan 3.3L LHF Pads and Rotor VIN: 2B4GP2532Y
We have 2 customers with the similar optioned van, both are experiencing LHF pad metal to metal wear out in 5,000 to 15,000 km, roughly 6 months on each van each time... the RHF pad only wears down to 6 - 7 mm (these pads start around 11mm new) Have replaced ...
2002 Dodge Ram 3500 5.9L fluid VIN: 3B7M33C72M
Just wanted to know do we have to buy the $14.00 per qt. fluid from the dealer or is there some other cheaper type that will work. what should the change interval be. thanks for your input.
2004 Dodge Ram 3500 SLT 5.9L No Start VIN: 3D7MU48C14
No communication with several scan tools and a code reader. Suspect PCI buss loss. Cranks no start. Unplugged engine & engine bay sensors (including electronic fan clutch), cab (antilock brake controller) plugs, tranny/transfer case plugs, removed instrument...
2002 Ford F-350 Super Duty XLT 7.3L Starter Motor VIN: 1FTSF31F02
Hello fellow tech's i am not a diesel mechanic but i have a good customer that has this vehicle that will not start. Turn the ignition lock cylinder the dash lights go out but the starter will not engage. The transmission does not have a safety neutral switch ...
2006 Ford Five Hundred Limited 3.0L Surge VIN: 1FAFP25166
customer complains of an engine surge clunk. when i road tested i noticed the idle would flare up a little all by itself causing the vehicle to lurch in gear a bit. i checked for codes and none were found. this is a drive by wire vehicle with no throttle cable...
2001 Honda Odyssey LX 3.5L Misfire VIN: 2HKRL18671
Depsite visual, fuel and vacuum checks the engine continues to run with a misfire. It is important to note that prior to the oil pressure switch change the problem did not exist. After the repair, the misfire developed. Trouble codes: P0300 (Random- Multiple misfire detected), P0304 (Cyl 4 Misfire detected), P0305 (Cyl 5 Misfire detected), P0302 (Cyl 2 Misfire detected), P0301 (Cyl 1 Misfire detected), P0303 (Cyl 3 Misfire detected)
2001 Honda CR-V LX 2.0L Collision Repair VIN: JHLRD18451
Hello Group: I am working on a honda crv that was brought in with both air bags deployed. The daughter rear ended a car sitting at a red light. The hit was below the top grille and cracked the bottom grille right about where the frame attaches to the bumper s...
2003 Jaguar S-Type 4.2L Parking Assist VIN: SAJEA03U23
Jaguar Techs: This car was sent to me with an installed harness overlay for the park assist sytem. The overlay kit has no info with it and the local dealer is not being too helpful. The wires are tagged with code numbers that do not correspond with the O.E. ha...
1994 Jeep Wrangler SE 4.0L Poor Idle Quality, Misfire
customer swapped a 94 4.0L into a 95 vehicle was running bad back firing and missfiring, after fixing several instalation mistakes( fuel leaks, vacuum leaks , loose sp plugs ,incorrect gap, broken sensors, loose grounds, etc.) im still stuck with a slight inte...
1998 Jeep Cherokee Sport 4.0L steering wheel VIN: 1J4FJ68S9W
Car came in with a squib open circuit code. Diagnosed as a bad clock spring. Removed air bag module, steering shaft nut, attached wheel puller and fun began, So far I've managed to pull the threads out of both holes and have to re-thread to an 11mm size, I've...
2003 Jeep Grand Cherokee Limited 4.0L Interor Lights VIN: 1J8G858S03
Hi there.The problem with this vehical is that when you close the doors and lock the car the interior lights take about 15 to 20 minutes to go out. They work fine other than that. If you get in and start they go out in about 15 seconds. All the door switches s...
2005 Mazda 3 i 2.0L Hesitation VIN: JM1BK12F15
We had sent the car to mazda to see if they could find an answer and they screwed us around saying that the compression readings were off and engine timing needed to be checked and wanted to charge $650. So I just rechecked the timing with the special Mazda 2....
1966 Mercedes-Benz 250SE 2.5L Poor Idle Quality, Hesitation, Misfire
This car misses on cylinder 5 and we have checked compression, plugs wire etc. We switched injectors and it still misses on #5. When we removed the injectors, however we noticed no fuel pressure at the fitting for #5 injector,(#6 made a psst sound when we loos...
1990 Mercedes-Benz 300SEL 3.0L MIL Lamp on VIN: WDBCA25D7L
Would like some help as to what ecu looks for to determine circuit fault with this code.sets light within 1/4 mile of driving , has not set at idle. Any Mercedes techs PLEASE Help. thanks Trouble codes: 10 (throttle valve switch)
1991 Mercedes-Benz 300E 3.0L Hesitation, Stall VIN: WDBEA26DXM
Let me start by saying I don't see German vehicles all that often so I've done a lot of research just to try and understand how everything works on this car. This car will stall if you stop quickly going in drive or reverse. It will also stall sometimes by jus...
1998 Mercury Sable LS 3.0L No Start VIN: 1MEFM50UXW
Have crank no start. check computer pid rpm and has 0 while cranking. replaced crank sensor. no change. perform diag tree no short on ckp wires. check bias voltage to sensor, spec states 1-2v I have 6v. has anyone seen this. the pcm for this is not manufacture...
1995 Nissan Altima GXE 2.4L engine VIN: 1N4BU31D5S
IF there are any Nissan techs out their I need you help/opinion. This vehicel came into the school with a overheating problem and white smoke. Diagnoses a plugged radiator and blown head gasket. Sent the head out for repair, they said the head was no good they...
2003 Nissan Altima 2.5L Engine VIN: 1N4AL11D53
Hey Guys, This is a Tuff Nutt to Crack, This vehicle came in for a knock and and engine rattle, @ idle this sounds like a top end type noise, accelerate to 1000 rpm and gets louder and deeper, fluctuate throttle 1500-2500 quick rap sounds like bottom end. inst...
2004 Nissan Quest S 3.5L main blower motor VIN: 5N1BV28U54
Here's a quick one. Anyone familiar with accessing the blower motor on this vehicle. The All Data info is a bit sketchy but it appears you have to remove the dash to get to it. If anyone has done this without removing the dash please advise. It appears there i...
2006 Nissan Altima 2.5L No Start, Cuts out, Stall, MIL Lamp on VIN: 1N4AL11D66
car came in with check engine light on with a p0340 cam sensor and car doesn't start sometimes. customer replaced sensor and did not fix his problem. he took car to the nissan dealer and the told him they replaced the computer??? but he didn't get charged?? no... Trouble codes: P0340
2001 Oldsmobile Aurora 3.5L Ebcm VIN: 1G3GR62H41
I have a 2001 Olds Aurora with an ABS light and a red brake light on and no communication with the EBCM. PCM is not recognizing it either. Verified power to pins A & B and grounds to pins F & G. Verified serial data circuit. With EBCM disconnected I have conti...
2000 Pontiac Bonneville SLE 3.8L obd 2 monitors VIN: 1G2HY54K1Y
Hi Guys, I have a 2000 pontiac bonneville sle. I cannot complete the evap, egr & catylist monitors for a smog check. I replaced the oxygen sensors about 2 months ago for a heater issue. Just replaced the thermostat last week because the cooling fans were comin...
2001 Pontiac Grand Am SE 2.4L crank,start then shut off VIN: 1G2NF52T21
I feel like its a passlock issue,just that with my solus with 11.2 it has a feature that you can power the passlock,and for 30 seconds it ran,then ac compressor came on and shut it off.When I clear codes,B2965,B2957,B2958,U1000,[...],all pointing to bc...
2005 Pontiac G6 3.5L No Start, Stall VIN: 1G2ZG52855
Vehicle came in for stalling at times and would have to wait to restart. After letting sit for approx 10 min. Vehicle would restart. Vehicle would always crank. On test drive, noticed that when vehicle would stall, nothing on that data changes. (we dont lose d... Trouble codes: C0242 (Pcm indicated tcs malfunction history), U2100 (Can bus communication), U2109 (Lost communication with pcm)
2007 Porsche CAYENNES 4.8L MIL Lamp on VIN: WP1AB29P48
Check cooling system full and tested at 60% and 7.5 tested ok at20 psi for 45 min. The code was cleard and light stay off for 150 ingition cycles Trouble codes: P2181 (Cooling system performance)
1999 Saab 9-3 SE 2.0L Exhaust Valves VIN: YS3DD58N8X
This vehicle came in missing on #3 & #4. Compression test and visual inspection using a borescope showed up that the exhaust valves on #3 and #4 cylinders had a nice "V" burnt spot on each. This problem had occured a couple of years ago on this same vehicle. B...
1982 Volkswagen Vanagon L 1.6L Runs wide upen VIN: WV2YG0251C
Hi all, I have an 82 Vanagon with a diesel. I replaced the engine with a used engine and transferred the injector pump. The van had set for 15 years. I got the engine too start but it just revved up and I shut it down right away. I suppose something in the pum...
2002 Volkswagen Beetle GL 2.0L Rear Hatch Release VIN: 3VWCB21C02
Mother in laws car here so need a good fix quick. The rear hatch release is inop. Does not work with switch in door or remote. Mitchell wiring diagram shows 2 fuses, fuse 14 in box on left side of dash is OK. Can't find any info to show where fuse 144 is. Is t...
2003 Volkswagen Jetta GLX 2.8L brake vac, pump VIN: VW3TH69MO3
hi gents, ive spent way to much time on this car and am in need of some help.Car shows up on the hook no crank,found melted fuse block on the battery.I replace said fuse block and fuses, the root problem now shows its self as a brake vac. pump(v192) stuck on a...
2005 Volkswagen Passat GLS 1.8L engine VIN: WVWAD63B85
felow vw tecs i am at a loos on this one and realy need your input . thanks in advance.
2004 Volvo S60 2.5T 2.5L Stall VIN: YV1RS59V34
hey volvo techs,need some help. customer stated engine stalled while driving once and when they came to complete stop engine was able to start again. concerned about fuel pressure sensor and fuel pump bulletins, told cust but dealer stated n/a. inspected fuel ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1976 Chevrolet C10 Scottsdale 5.7L crankshaft
Repaired the problem as follows: Drilled a very small dimple into the outer edge of the broken piece in the crankshaft. Used a sharpened center punch tapping into the very shall dimple a few time cause the piece to start turning. One it turned a couple of time...
1990 Chevrolet K2500 Silverado 5.7L Surge, Misfire VIN: 1GCFK24K1L
the customer needed to take his vehicle when i posted this and it has not returned yet for me to do further testing. i was gonna unplug the converter lockup to see if problem went away. thanks for the replies but the time has run out for this help request.
2009 Chevrolet Express 3500 6.0L Electronic VIN: 1GCHG39K09
Checked with the customer and since we suggested he take it to the dealer because the transmission was still under warranty and he did so. He stated that the dealer replaced transmission under warranty.
2001 Chrysler 300M 3.5L 1-2 Downshift VIN: 2C3AE66G61
Well it appears to be fixed. I did what everyone reccomended. Did a relearn on the trans. I used a DRB III, I don't know if you can do this with aftermarket scan tools. I thought you only did that on trans replacement. I waited for the customer to come back an...
2000 Dodge Ram 2500 5.9L Transmission NV4500 VIN: 1B7KF2362Y
Sorry for taking so long to close this post. I pulled the trans and was prepared for whatever repair was needed, the throwout bearing arm was worn on one side causing uneven pressure on the pressure plate therefore not disengaging completely. I installed a the...
2007 Dodge Ram 1500 ST 4.7L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 1D7HA16P97
thanks to everyone,after checking the harness to the camshaft sensor, i noticed thath while moving the wires (cables)on a certain way or position the check engine light would come on,so i changed the camshaft sensor connector and the truck has been working go... Trouble codes: P0344 (Intermitment CAMSHAFT Signal).
1978 Ford F-150 Ranger 5.8L Engine VIN: F15HKY5010
thanks to everyone for all the help with this one. problem ended up being with the ignition system,resistor wire for the ignition coil was damaged also had a ground that was not making good contact.repaired circuits and retested engine starts and runs properly...
1994 Ford Ranger XL 4.0L cooling syster VIN: 1FTCR15XXR
Thank's to all for your help. I finaly talked the coustomer into pulling the heads and checking for cracks so we did and found the problem. He decided to put new heads to be sure of no problems,also no cracks were found but the problem was muck all around the ...
1995 Ford Windstar 3.8L MIL Lamp on VIN: 2FMZAS150T
Wow, alot of good information here guys. It's too bad I cleared the code when the customer first came. The MIL hasn't come back on yet. Customer did mention it came on while pulling the only steep hill within hundreds of miles (terrain is long and flat here). ... Trouble codes: P0171 (System too lean bank 1), P0174 (System too lean bank 2).
1998 Ford Escort SE 2.0L Excessive Emissions, MIL Lamp on VIN: 1FAFP15P4W
Thanks for all the responses. We've seen alot of weird stuff come through, and this one was one of them. Let me start off by correcting the NOx statement. It was actually CO that I meant. 3% meant overfueling alot!! Did some more digging and found a burn ... Trouble codes: P1131.
2000 Ford F-250 Super Duty Lariat 7.3L 2-3 Shift VIN: 1FTNW21F1Y
Thanks for all that replied this truck is stock no chip so eliminated that. when we performed a line pressure test, we followed test procedure outlined in service manual for an idle test and a stall test in all of the shifter positions. The pressures in all ...
2003 Ford F-350 Super Duty Lariat 6.0L Cuts out VIN: 1FTSW31P63
Thank you very much for your help, and this truck is fixed. The problem was corroded battery connections. They were a little corroded visibly, but I didn't think anything of it because the voltage drop was only 0.05v. There is one thing that voltage drop tes... Trouble codes: P1614 (Cam Sensor Circuit Failure), P1617 (Crank Sensor Circuit Failure).
2005 Ford E-450 Super Duty 6.0L Poor Idle Quality VIN: 1FDXE45PX4
Thanks for the input. The truck would require a fair amount of labor just to diagnose. The customer uses this truck everyday and he couldn't wait for proper diagnosis. Sorry I wasted your guys time.
2006 Ford E-350 Super Duty 5.4L MIL Lamp on VIN: 1FTSS34L56
Checked all the basics and went through the wiring harness. No faults located. Reflashed the pcm with updated program and all problems and check engine light resolved. Thanks Trouble codes: P2197.
2006 Ford Taurus SE 3.0L Hesitation, Surge, Cuts out VIN: 1FAFP56U36
Thanks to all for your replys. Found a wire harness by pcm rubed through on and a/c line shorting out the fuel pump signal. tripped no codes but if you watched scaner close fuel pump fault would flicker for a split secound when acting up.
2002 GMC W4500 Forward W4S042 4.8L Wont shut down VIN: J8DC4B1492
Goofy system. It has a shut down motor that pulls a cable that moves the stop lever on the injection pump. It must see charging voltage at the shut down motor when the key is turned off to actuate the stop system. I think we have way to many overpaid engineers... Trouble codes: 11 (VS8 1 Circuit), 17 (Inhibit switch).
2003 GMC Sierra 2500 HD 6.6L Passenger side power windows VIN: 1GTHK23113
Sometimes it just takes getting away from the problem for awhile I guess. Most replies confirmed the relay box is where stated to the left of the brake pedal right at the firewall, it's what I thought was just a junction for wiring harnesses is actually the re...
2003 Honda Civic Si 1.7L Rad VIN: IHGEM229X3
Thank you guys for all your replies,we gave the customer a few options. 1.head gasket,water pump,timing belt with a clear understanding there will be no warranty on bottom end due to severe heat. 2. used engine with 1 year or [...] warranty. he chose option...
2005 Honda Civic DX 1.7L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1HGES16305
Customer went to Honda. They replaced Air/ Fuel Sensor with Honda part. Light is off. This was 1st in our shop, but have since had Camry in with failed A/F sensor. (Got part from Toyota.) Thank you for all replies. Especially Timothy from WI. He had the best d... Trouble codes: P0134 (Air Fuel Sensor B1S1 No Activity Detected), P0135 (B1S1 Heater Circuit Malfunction).
2004 Hyundai Sonata 2.4L Misfire VIN: KMHWF25S14
I didn't close this for a while as I wanted to drive the car for a week to see if the problem is fixed. Replacing the coils solved the problem. Thank you to everybody for your assistance.
2002 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Cuts out, MIL Lamp on VIN: 1J4GX48S12
as i continue my work on this thanks for the replies, luckily i got another 2002 cherokee in the shop, i end up replacing the oil pump drive housing with the cam sensor, bet there is a trick to it, it didn't need to replace, the person who work with it before ... Trouble codes: P0352 (ignition coil driver circuit 2), P0353 (ignition coil driver circuit 3), P0351 (ignition coil driver circuit 1).
2005 Lincoln LS Sport 3.9L Misfire, MIL Lamp on VIN: 1LNHM87A14
Hello All Well it was back to basics on this car I made the mistake of listening to what the other shop had done and their suspicions about and electronic problem. I took the advice of a couple of you all and pulled valve covers and i found no jumped cams or b... Trouble codes: P0353, P0356, P0357, P0358.
1973 Mercedes-Benz 280C 2.8L Power antenna VIN: 1140731200
Customer did show up with this vintage car, so we could see. The antenna access was easy- just remove plastic cover on the inner side of the right front fender. It would be more time consuming to put long antenna cable up to the radio, but the owner didn't wan...
1989 Pontiac 6000 LE 2.8L Stall VIN: 1G2AF51W9K
Thank you for the replies. Those who suggested injectors was right on. 2 of the 4 injectors we had not previously replaced ohmed at 9.2 and 7.8. We sugested the owner replace all remaining OE injectors and she runs like a charm. I could not get past the fact t...
2001 Pontiac Grand Am SE 2.4L Misfire, MIL Lamp on VIN: 1G2NF52TX1
thanks for all the help we found a broke wire in the harness to the icm Trouble codes: P0300.
1987 Porsche 911 Carrera 3.2L Compressor VIN: WPOEBO911H
The problem was the thermostatic (temp control) switch in the dash. Thanks to all.
2004 Toyota Camry LE 2.4L Hesitation VIN: JTDBE32K54
Vehicle was fixed with new fuel pump. Optimal pressure was not sustained under heavy load. Thanks to all those suggestions.
2001 Volkswagen Passat GLS 4 Motion 2.8L Mechanical VIN: WVWTH63B01
I'll Call It Fixed Cause I Don't See Anymore Leakage. Most Of The Replies Said Chain Tensioner Gasket. It Was Still Hard To Tell Even With The Dye Where The Exact Leak Was So I Changed The Chain Tensioner Gasket And The Half Moon Seal. I Made My Own Tool To Co...
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