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Prev Professional Automotive Repair Technical Discussions for April 11, 2012
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Help Request Answers
1999 Audi A4 2.8L Scan Tool Com VIN: WAUED28D0X
Abs/air bag/ lites lit on dash when trying to get scanner to comm. With any module scanner says no comm not an audi tech just trying to get smog done have read to disconnect mods 1 by 1 started at abs but book claims mod under back seat only found 1 i belive t...
1997 BMW 528i 2.8L Brake warning light VIN: WBADD62090
Hi all, This BMW came into our workshop with the brake warning lamp on the instrument cluster constantly illuminated. It's the one with an exclamation mark in a circle. I first checked the operation of the handbrake switch and the brake fluid level, then remov...
2008 BMW 328i 3.0L radiator VIN: WBAVC53518
i have a 2008 bmw 328i and every radiator i get seems to be wrong. there is some kind of sensor that seems to be part of the factory radiator and the replacements do not have said sensor. i have checked on mitchell ondemand to get a name for this sensor and ca...
1997 Buick Skylark Limited 2.4L Poor Idle Quality, Cuts out, Stall VIN: 1G4NJ52T3V
when i run the car for 20 minutes and let it sit for 45 minutes i can start the vehicle and within a few second it will stall out. If I restart it takes a long crank before it start again and it will run ok but just a little rough, I tested for high oil pressu...
1951 Cadillac Series 62 DeVille 5.4L Wiring VIN: 000FW46458
Two problems guys. I need a proper wiring diagram for the firewall so I can repair the harness which has been substantially damaged. The ignition switch and the underdash wiring is substanially hacked. I only have basic drawings of the typical systems old cars...
1992 Chevrolet S10 4.3L Stall VIN: 1GCCS19Z3N
I have tried to determine if we are losing ignition or fuel. Performed voltage drops on all grounds to the computer all about .1v. Checked ignition feed to computer while problem is occurring and keeps 13.5v. Check all sensors 5v reference while problem is occ...
2003 Chevrolet Silverado 2500 HD 6.6L engine
thanks for all the responses in advance. I want to get some input on removing a seized engine in this truck. the engine will not turn, making it impossible to disconnect the torque converter. the engine is stuck due to coolant sitting in the cylinders for seve...
2003 Chevrolet Avalanche 1500 North Face 5.3L Differential VIN: 3GNEK13T53
this avalanche came in with customer complant of noise while driving. Upon road test noise sounded like a roar from left front. Noise goes away when you take load off left front wheel as you weave from left to right down road. So left front wheel bearing was r...
1999 Chrysler 300M 3.5L shift selector VIN: 2C3HE66G9X
1999 Crysler 300 m cobra type shift selector. Auto stick hasn't worked in over a year but in the last week the gear selector gradually became difficult to shift into Park. The last 2 days it will only shift into Reverse, Neutral, and Drive with great effort on...
2006 Chrysler Town & Country 3.3L ABS & Power Door Locks VIN: 1A4GP45R66
Van was in my shop last week for replacement of both accessory power sockets [cigarette lighters], due to customer use of an over sized power inverter. Replaced sockets with dealer supplied parts. Replaced fuse and no other electrical issues noted at that time...
2007 Chrysler Pacifica Touring 4.0L master cylinder VIN: 2A8GM68X57
Brake pedal slowly fades to floor when pressed. If you release it and press again, good firm pedal. Customer replaced rear calipers and pads. I bled abs with verus, replaced master cylinder with reman, replaced master again with new chrysler part. No luck, sti...
1995 Dodge Stealth R/T 3.0L Misfire VIN: JB3AM84J4S
Good morning folks, I have a Stealth that's being a problem. Put a clutch in this one last Friday and when I started it to drive out it was running lousy. Checked and found the coil for #3 & 6 was dead. Found that there was no driver for that coil so I started...
2000 Dodge Dakota SLT 3.9L No Start, Poor Idle Quality, Misfire VIN: 1B7GL2AX0Y
Hey guys, you know those jobs that seem so simple and cut and dried that you love to get started on them? Well thats what I thought I had about 30 days ago. Now I can't wait for this nightmare to end. The pickup came to us on a tow strap with a no start condit...
2005 Dodge Ram 3500 SLT 5.9L Delay wipers VIN: 3D7MS48C15
Hi guys have a 05 ram 3500 that originally came in for random operation of wipers whether they were turned on or not so at the customers request I replaced the switch the wipers on low and hi speeds now operate normally but the delay can work normal or not at ...
1997 Ford F-150 Lariat 5.4L 2-3 shift VIN: 1FTEX18L4V
I've done everything I can think of before going online with this problem. I'm a smog tech with lots of experience but not on E4od Ford transmissions. Transmission was replaced for no upshifts after 1-2 shift.Clean used Ford reman was installed (I didn't do i...
1998 Ford F-150 Lariat 4.6L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1FTZX18W5W
Hi Guys..Had an engine than ran fine but no oil pressure..So I installed an used engine from the wreckers but runs like shit,especially hot,not too bad when cold..Thought I had a vacuum leak but I removed intake & installed one from the engine that ran good.St...
2000 Ford Expedition XLT 4.6L No Start VIN: 1FMEU1667Y
Customer replaced trans filter fuel pump fuel filter has no injector pulse
2001 Ford Mustang SVT Cobra 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FAFP46V61
Ok here goes have a 2001 mustang cobra, we put crank and rods in it, Kinda getting ahead of myself but after we mounted engine in my tech realized we went from a 8bolt crank 2 6bolt, so we switched the flywheel, I wouldn't doubt that are problems are related t... Trouble codes: P0175
2001 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNX21F61
Howdy, Helping a tranmission shop in the area that is trying to "learn about diesel"? The truck was diagnosed with a trans problem at the dealer and ended up at the buddy's trans shop where all these things were replaced. It was running when it got there and g... Trouble codes: P1280 (icp low or high), P0472 (exh press reg peformance), P0198 (oil temp high), P0119, P1690 (waste gate performance), P1140 (water sensor ckt)
2002 Ford Taurus LX 3.0L will not accelerate VIN: 1FAFP55U82
Hi guys Im reposting this car due to incorrect mileage I submitted and finding out your only allowed one update. As of right now the car is still in the shop showing the same symptoms. Symptoms are when pressing gas pedal or throttle the car will not accelerat...
2002 Ford Explorer Eddie Bauer 4.6L no communication VIN: 1FMDU74W02
2002 explorer here failed state emmision test for no communication with obd system. my modis communicates and all monitors are passed with no codes. tried solus and generic code reader, all communicate. took back for retest failed same thing. i talked to guys ...
2003 Ford F-350 Super Duty XLT 6.0L Steering VIN: 1FTSW31P13
I helped a friend replace power steering hoses on this truck. We now have no assist for the brakes or steering.There was no noise from the pump that would indicate a problem. Had the truck raised up to bleed system. Kept reservoir full and turned wheels lock t...
2003 Ford Explorer XLT 4.6L temperature controls VIN: 1FMZU73W83
Part of the story is in related repair history. this is a Manual a/c heater system. there is no movement of the blend door actuator with control knob movement. using the symptom chart for temp control inop and pinpoint test M. M1 12v yes. M2 yes .2ohms. M3 is ...
2004 Ford Crown Victoria Police Interceptor 4.6L Suspension VIN: 2FAFP71W34
This my own vehicle, thanks to all that reply. When driving 30mph or higher, if you accelerate the car pulls to the left, not bad, but noticable. once you let off, it drifts back to the right. almost like torque steer but the steering wheel dosen't move. check...
2006 Ford Taurus SEL 3.0L Mechanical VIN: 1FAFP56U96
Ticking noise in engine that sounds similar to a rocker arm loose. All rockers were tight. Removed heads and had them refreshed. Found gouge in the top of the piston the shape of a piece of valve spring, buffed it smooth. The customer had a broken valve spring...
2007 Ford F-150 XLT 5.4L Poor Idle Quality, MIL Lamp on VIN: 1FTPX14VX7
Hello. This Ford was traded in to our dealership. On a long test drive after it is hot, as the vehicle comes to a stop, it starts running rough and making a knocking sound from the timing chain area or from the valve cover areas. The codes that set all have to... Trouble codes: P0022 (Intake Cam Timing Over retarded bank 2), P0345 (Cam position sensor circuit malfunction bank 2), P0349, P0512 (Starter Request circuit)
2011 Ford F-250 Super Duty XL 6.2L Pats VIN: 1FTBF2A69B
I was able to flash the new Box, however when I went to the PATS to program the keys so the truck will start it will begin the 10 minute security count down and then an error message will appear for: Low battery voltage. I have a SnapOn charger with the flash ...
2009 GMC Sierra 1500 SLE 5.3L Not Sure VIN: 1GTEK29089
I have this truck at our shop that is verry interminit and am looking for a starting point. Coustomer is saying truck will stall or almost stall at a stop and when it does check engine light and reduced power light will come on. My codes are p0443,p3401, p3425...
1989 Honda Accord LX 2.0L Poor Idle Quality, Surge, Stall, Misfire VIN: 1HGCA5636K
cust just bought, runs poor, shakey idle,hesitates- smoked intake, repaired 3 bad vac hoses, adjusted valves- found #3 intake too tight, removed carb to remove acces plug for idle mixture...can richen enough to smooth out, but idle is too high and cannot lower...
2008 Honda Accord LX 2.4L cylinder head VIN: 1HGCP26338
Im doing a head gasket on the accord pzev. Is there anything I should be aware of .I noticed when you reassemble they talk of a LOST MOTION ASSEMBLY what is that? Im worried about this one so I cant begin to tell you how much I would appreciate any help I can ...
2004 Jaguar Vanden Plas 4.2L suspension VIN: SAJWA74C04
car came in with suspension fault light and code C2302.this code reads as height plausablity error. we have not seen this code before. The suspension works fine and does not leak down. it continues to reset this code. We have recalibrated the suspension severa...
2002 Lexus RX300 3.0L Safety VIN: JTJHF10U52
Greetings, This RX330 had a very intermittent code B0103 for "Squib ckt D shorted to battery". Suspected a short in spiral cable (clockspring) and replaced it. Two week later same code. Cannot pinpoint due to intermittency and wiring appears fine through and ...
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...
1998 Mazda 626 DX 2.0L Power Steering VIN: 1YVGF22C7W
Power Steering system getting air in system. Bubbles in fluid, making pump noisy
2002 Mercedes-Benz SL500 5.0L Esp C1504 & C1140 VIN: WDBFA68F32
Retrieved Code C1504 steering angle sensor And C1140 Steering angle sensor not intialized. Replaced steering angle sensor twice, Have tried the lock to lock to center intialization many, many times. I have battery voltage to angle sensor on three of the four p...
2003 Nissan Altima 2.5L Misfire, MIL Lamp on VIN: 1N4AL11D13
car came in for engine light on code P0301 #1 cylinder missfire. changed plugs, #1 coil and swapped injectors around code came back. when braking hard just before stopped missfire can be felt until stopped for around 2 seconds, then smooth. full throttle and c... Trouble codes: P0301
2007 Pontiac Solstice 2.4L Electronic VIN: 1G2MB35B27
P2637 Engine Torque signal malfunction. If you read the diagnostic procedure, it basically has a few steps ultimately leading to a TCM computer. Well, I put a brand new TCM computer from GM in it and it still messes up. I have to drive it for a few days, but i...
2000 Saturn LS2 3.0L Bcm VIN: 1G8JW52R9Y
BCM Saturn programming tips. I have a 2000 Saturn LS2 I need to replace the BCM. Question? Should i just take it to Chevy and pay them $125 to flash my new BCM, or can I do it myself. I do have a Tech2 and i see you can buy software on GM's site for $55. Do I ...
2003 Toyota Camry SE 2.4L Engine VIN: JTDBE32K73
Burns oil and I believe it is valve stem seals. I have 3 customers with this issue with same engine and about same years. The miles vary from 89k to 210k. However I would love to hear from some Toyota experience. I would hate to charge a customer to explore va...
2007 Toyota Corolla S 1.8L MIL Lamp on VIN: JTDBR32EX7
hello techs i have this 07 corolla with a p0171.. it does have high fuel trim reads around 17 i did clean the mass air flow sensor and replace the filter with oem but in a week it came back.. do these have problems with the mass air flow sensor or could it be ... Trouble codes: P0171
2004 Volkswagen Passat GLS 2.0L MIL Lamp on VIN: WVWVE63B84
Hi got a vw that is driving me nuts it originally came in blowing black smoke no power and check engine light on with underboost code and air flow meter code. Checked turbo and when hot it would hardly turn by hand and it was leaking oil so replaced the turbo ... Trouble codes: P0299
2005 Volkswagen Jetta 2.5 2.5L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 3VWPF71K45
ran propane around intake with no result.found diagham in valve cover ruptured and replaced-made idle better.but still has small pecks idling .running down road during normal accel will surge then after 2500 rpms runs fine long term fuel trim is + or - 3 or 5%... Trouble codes: P0300, P2279
2006 Volkswagen Jetta TDI 1.9L No Start, Stall VIN: 3VWRT71K86
This car came in for an intermittent stall/no start. Customer states if you wait a few minutes, it will ususally restart. I finally got it to stall, and it went dead, nothing in vehicle has power, of course no scan tool communication. Used jump starter and sta... Trouble codes: 01317 (control unit in dash-sporadic open circuit), 00884 (ignition starter switch-X terminal-short circuit), 00885 (ign starter switchterminal 50---short circuit), 00002 (gearbox control unit-open circuit), 00003 (module internal failure), 00457 (vehicle elec. control module open circuit)
2007 Volkswagen Jetta 2.5 2.5L Chech Engine Light VIN: 3VWGG71K17
Hello fello techs. I have this jetta 2.5 throwing lean code 171.i have replaced valve cover,#1 oxygen sensor, air flow meter.sprayed down complete intake find no leaks.checked fuel pressure-ok is ther something im missing or is common.

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 Audi A8 Quattro L 4.2L Tpms VIN: WAUML44E36
Thank You Folks for the replies. The TPM module is now an updated unit. The coding for it is easy. 2-1-2-2-2-7 This tells the car what the tire pressures should be going by the car's tire pressure spec. The unit itself is under the back seat on the LH side. Pl...
1998 Chevrolet K1500 Cheyenne 5.7L down shifting VIN: 2GCEK19R5W
customer didnt want to fix at this time Thanks to all who helped fuel preesure was at about 55 under hard accel
1999 Chevrolet K1500 LS 5.7L MIL Lamp on VIN: 1GCEK19R9X
Customer ddid not want to spend any more money on this problem. my suggestion was go back to first shop that took close to a grand from them and see if they want to spend there time and fix it Trouble codes: 1404 (Egr).
2000 Chevrolet Impala 3.4L Battery drain
Wow, lots of information given, i want to thank all who have replied. This was an odd one to say the least and as i talked with the customer more and more i got more info. Customer said the security light would go on one in a while and once in a while the key ...
2000 Chevrolet Express 3500 LS 5.7L abs module VIN: 1GBJG31RXY
well that one is down the road no thanks to otc genisys problem was that the genisys would not talk to ebcm on that van but had no issues with my own 03 z-71 cost me a whole day [problem was c0221,c0225 squirrel chewed the front sensor wires]i did find the pas...
2001 Chevrolet Silverado 1500 HD LS 6.0L ecbm VIN: 1GCGK13U51
We determined that the ecbm was faulty due to all the replies. Thanks so muuucch! This is a wonderful program! David [...]
2008 Chevrolet Corvette 6.2L horn in-op VIN: 1G1YY25W98
horn worked all day yesterday sat all night this am no horn used tech 2 to active horn did not work check all circuits went to bcm found lock on one connecter unlocked resecured and all is well thanks for the help.
2003 Dodge Ram 1500 SLT 5.7L Engine VIN: 1D7HU18D13
Thank you guys for all your help, I don't know why I didn't think of a compression test to begin with. Sometimes you forget the basics. After finding the bad cylinder it was time to call Surefire. Their tech, without any question or requesting any further i...
2004 Dodge Grand Caravan SE 3.3L No Start VIN: 1D4GP24R04
After reading all the suggestions I took a hair dryer(thanks Jerry)and warmed up the ecm.The van started immediately and ran fine all day,have done this 3 times.Installed new ecm and van runs great with no new problems.I wonder who had the idea to put an ecm i...
2005 Dodge Ram 3500 SLT 5.9L Cooling fan inoperative VIN: 3D7MS48C15
I want to say that customer did not bring the truck back yet. But we did find some corroded wires at the tipm we fixed them and replaced the tipm but did not fix our problem but was definately a problem. We traced all the wires and circuits for the fan and i ...
2008 Dodge Ram 3500 Laramie 6.7L Ecm/Tipm VIN: 3D7MX38A28
Feeling a little sheepish about this one. Ignoring the CKP sensor based on service information that states the CMP is used to start the engine and then the CKP takes over was a mistake. Installed a new sensor and the truck fired right up. Just for your inf...
1998 Ford Explorer Eddie Bauer 4.0L MIL Lamp on VIN: 1FMZU34E7W
well, I got a used pcm, installed and would not run at all [anti-theft kicked in]..after pulling my hair out, asking for help from the Mass d.e.p, you guys, Identifix, ect... installed original back in, drove it for 8 miles, no light, passed for a sticker! all... Trouble codes: P0302, P0304.
2002 Ford Taurus LX 3.0L Hesitation VIN: 1FAFP55U82
Hi Guys I want to thank everybody for the replies as of right now I am still Stumped
2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L No Start, Stall, Misfire VIN: 1FTNW21P84
replaceed ipr this morning and truck still not fixed. there is no change. i did run the truck until 200deg oil temp. ipr duty was 20% at idle so suspect no leak, but when shut truck off back to square 1. 85% duty with 250psi icp during cranking. this was takin... Trouble codes: P2291, P0263.
2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L No Start, Poor Idle Quality, Surge, Stall VIN: 1FTSW31P54
Ok again thank you for all the leads, i ended up changing the oil and filter on this truck and then after that it never would start again. Just cranked until the batteries went too low. So I ended up testing fuel pressure from supply pump found that there was ... Trouble codes: P0284, P2614, P2617, P2290.
2005 Ford F-350 Super Duty King Ranch 6.0L egr cooler or hd gskt VIN: 1FTWW31P15
Yes, the EGR cooler wil hydrolock multiple cylinders on the right bank. Coolant was not visible at the EGR valve although steam was. I replaced both coolers and all is well so far. Thank you all!
2005 GMC Canyon Z71 SL 2.8L No Start, No crank VIN: 1GTDT19865
Thank you for all of the great responses. I had to replace the ignition housing/ignition switch. It came from the dealer as a unit. The ignition lock cylinder was reused. After installation the security light was flashing so I had to relearn the passkey. It ...
2007 Infiniti G35 3.5L Hesitation VIN: JNKBV61E97
Thank you for your replies to this problem, we took vehicle to dealer and they performed reflash as some of you stated and vehicle is fixed!
1996 Jaguar XJ6 4.0L instrument cluster VIN: SAJHX1749T
#6 coil was causing the problem. We disconnected the coils 1 at a time while engine was running and the instrument cluster was showing it's problems. When we got to # 6 the problem went away. Coil on order and will arrive tomorrow.. Thanks for all your help
2000 Jeep Cherokee Sport 4.0L Surge, Cuts out, MIL Lamp on VIN: 1J4FF48S2Y
I want to thank everyone for all the help. Here is what happened so far. I had trouble with my scope leads shorting out and stalling engine. I fixed them but thier not long enough to road test with. I scoped cam and crank when running well and when acting up... Trouble codes: P0303 (cyl 3 missfire), P0305 (cyl 5 missfire).
2001 Jeep Grand Cherokee Limited 4.7L Frt Diff VIN: 1J4GW58N21
2001 Jeep Grand Cherokee Laredo 4.0L oil gauge VIN: 1J4GW48S11
I was debating whether I had a bad instrument cluster, computer or oil pressure loss in the engine. I decided to drain the oil fill it with straight 50, come to find out that pressure was increased by 10 psi. The customer approved a rebuilt engine from dodge. ...
2000 Mercedes-Benz S430 4.3L Poor Idle Quality, Surge, No throttle VIN: WDBNG70J1Y
So this one was fun. After replacing the battery (Timothy, Don, and Stanley) and trying numerous combinations for key on for 20 minutes, let the car run for half hour, unplugging the battery and shorting the terminals (Detlev), etc. Nothing worked. Followin... Trouble codes: C1022.
2005 Mercedes-Benz CLK500 5.0L ac system leak VIN: WDBTJ75J85
I was waiting for a few weeks to go by in order to confirm my repair was successful. I pulled the dash and found the expansion valve was leaking. The expansion vlave can actually be replaced with dash in place however I wanted to manually pressure test the eva...
2000 Mercury Grand Marquis LS 4.6L Abs operation VIN: 2MEFM75W6Y
Car has not returned for further diagnosis. So unfortunately I don't have a solution to my problem. Again thank you for all the replies. I will try to post findings if car does return.
2008 Mitsubishi Eclipse SE 2.4L M/C & Abs VIN: 4A3AK64F48
I found some information on a better bleeding strategy... bleed system in specific order (RR,LF,LR,RF) and bleed with the engine running. Afterwards the pedal felt pretty decent. We gave it back to the customer. I guess only time will tell if it completely fix...
2006 Pontiac Grand Prix 3.8L tempature indication VIN: 2G2WP55296
Thanks to everyone who responded. The fix for this one was as I suspected. We took the cluster to another instrument shop, not the original one, and they checked and replaced the tempature gauge and the vehicle performed fine. No over heating, never traveled a...
1996 Toyota Camry DX 2.2L Cam seal VIN: 4T1BG12K2T
Thanks for all the replies,sorry it's taken so long to close.Ran into problems with getting the right parts.I know that hardly ever happens.I pulled the valve cover again and resealed the bearing cap again and looked at the seal.Totally dry in the lip of seal....
2004 Toyota Prius 1.5L Fuel odor VIN: JTDKB20U14
Well first off thanks to all who took time to reply. In the process of replacing the injector o-rings and insulators I found the #4 plug well rusted..like orange powder. Apparently the spark plug wasnt fully seated and was allowing combustion gasses to escape ...
1986 Volkswagen Vanagon Syncro 2.1L Cv Axle VIN: WV2XB0258G
I'm still looking for an answer to this noise. I want to thank the guys who sent the 12 replies with many different possiblities. I think Keith from Vermont is on the right track. The noise is probably in the hub assembly, now I just need to find what is worn ...
2002 Volkswagen Passat GLX 2.8L timing belt VIN: WVWRH63B72
yes. got it done. did the water pump, timing belt, tensioner, idler, hydraulic tensioner, thermostat. put the carrier into "service position". easy to do. front bumper comes off quick! i used all the special tools, but i also put some paint pen marks on ...
2002 Volvo S60 AWD 2.4L all wheel drive VIN: YV1RH58D42
Customer still has not returned with vehicle. we did go back and recheck the speed sensors by testing one way then switching the leads for an ohm reading. one way showed continuity and the other didnt. wierd. another volvo came in that is to be donated wich ha...
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