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Prev Professional Automotive Repair Technical Discussions for April 17, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Audi Allroad Quattro 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: WA1YD64B93
This audi came in a few months back with collided valves into pistons destroying the bottom end, we installed a used low mileage long block engine into it and It ran fine for a few days but noted when fully accelerated to the floor WOT under maximum boost and ... Trouble codes: P0300 (random misfire), P0303, P0302, P0306
2005 Audi TT Quattro 3.2L Hesitation VIN: TRUUF28N55
This TT came in with a 16395 P0011 intake cam adjuster was running badly,had hard code and misfire codes for all 6 cylinder.Before I could get any cam timing parameters the car started running fine The customer does not want the car back until it is...
2004 BMW 745Li 4.4L codes VIN: WBAGN63594
I am working on a 2004 BMW 745LI, trying to find information on DTC A3AA (No message from Transmission Management) found DTC in the Instrument cluster control module.
1992 Chevrolet S10 Blazer Sport 4.3L compressor VIN: 1GNCS13W8N
I would like to replace compressor with after market 1 like on hotrods. Anyone know where or if anyone makes a kit, brackets, ect for sanden type compressor? Thanks in advance. This is my personal vehicle & I plan to keep it forever.
1993 Chevrolet Corvette 5.7L No Start
Hi all, this Corvette came into our shop a few months ago on the hook with a no-start condition. After diagnosis we found a bad optispark distributor and replaced it with an oem unit and the car drove away. Two weeks after that we get a call from the owner, he...
2003 Chevrolet Astro 4.3L Hydroboost VIN: 1GNDM19X73
Customer replaced power steering pump. Now when started, brake pedal goes down and applies brakes. Checked valve in pump and o-ring is in correct groove not blocking hole. Valve is not the one from the old pump but one that came with reman pump. Could it be a ...
2003 Chevrolet S10 LS 4.3L MIL Lamp on VIN: 1GCDT13X93
testing for P0446 (NOT PLUGGED VENT) fuel tank pressure volts read 1.5 KOEO but jump to 2.9 when i cycle the key to on just while fuel pump runs. Then when i start the vehicle the voltage goes to 2.9 and stays there, fuel cap off, canister hose unplugged. foun...
2008 Chevrolet Cobalt LT 2.2L No Start
We bought this car as a repo with a NEW Key un programmed, got it home and tryed the 30 minute relearn several times with no luck, took it to our locksmith andhe could not get to learn, brought it back and noticed it had NO check engine light and part of the f... Trouble codes: U2106 (loss of communication), B3031 (Security system), B3935 (undocumented Theft)
1989 Chrysler Fifth Avenue 5.2L Surge, flattens out VIN: 1C3XM66P9K
see repair history
2001 Chrysler PT Cruiser 2.4L Cuts out VIN: 3C4FY4BB61
This very strange thing.the car was running very bad all the time,found bad o2 sensor and a plugged convertor,it now idling and rev up good in runs good in gear with your foot on the brake,here where the problem starts, as soon as the wheel move a smal... Trouble codes: P1685
1998 Dodge Ram 1500 Truck ST 5.9L Interior Lights VIN: 1B7HF13Z6W
Got an interesting one in this morning that I could use a little reassuring on. 1998 Dodge Ram pickup with dome light issue. The dome and map lights will not turn off unless you pull the fuse #3 in the interior fuse panel. This also affects the radio. Door swi...
2004 Dodge Ram 2500 Truck ST 5.7L Misfire VIN: 1D7KU28D34
I recieved this truck from another shop and the other shop told me the coils are burning up not ust 1 cylinder, but anyone at anytime. I was leaning towards a ecm, but i called the other shop and they told me it has been replaced twice. Has anyone had this pro...
1997 Ford Explorer Eddie Bauer 4.0L 4 wheel drive VIN: 1FMDU34EXV
Okay all have looked at all the post on this that I can find and none seems close to what I am dealing with. Not had to work on to many of these 4x4 systems all of my customers with this style have had no problems with the 4 wheel drive. But then again none ha...
2012 Ford F-250 Super Duty King Ranch 6.2L Failed E-test VIN: 1FT7W2B69C
The trucks continuous fuel monitor is not ready. Only code is p1639. I suspect tuner tampering but no info available. Reflashed computer with no help. evap egr misfire comprehensive were ready before I reset the pcm.Tried KAM reset, tried misfire reset to no a... Trouble codes: P1639
1999 GMC Savana 3500 5.7L Poor Idle Quality, Cuts out, Stall VIN: 1GDHG31R3X
Customer has a fleet of these box trucks. On a hot day usually driving over 45 min. Truck will lose power and barely run, sometimes cut off. Owner will drive up there open hood and let it cool for an hour or so and it runs fine. I have not got them to act up, ...
1994 Honda Civic Si 1.6L Starting VIN: 2HGEH3398R
This 1 got dump in my lap the ck eng lite stays on when key is in the on position if you cycle the key off/on several time it will go off in 2 sec then it will start this only occurs ever so often ck grounds from pgmi relay backprobe from ecm for voltage drop ...
1993 Jeep Cherokee Country 4.0L Excessive Emissions VIN: 1J4FT78S4P
Vehicle fail smog on nox emissions. First test 15mph at 639nox, 25mph at 454nox.(boarder line pass) Found 02 sensor not switching, replace and recheck now at 15mph 957nox 25mph 889nox. Already check coolant sensor, 197f on scanner, bench test map sensor okay, ...
1996 Jeep Grand Cherokee Laredo 5.2L Starting VIN: 1J4GZ58Y8T
Vehicle came in with a dead battery, we charged the battery and tested the charging system, working ok, we tested for a parasitic draw, it would toggle from 70 ma to 255 ma every 30 seconds. We removed the fuse #7, in junction block, and it went to a steady 58...
2000 Jeep Wrangler Sahara 4.0L Clutch VIN: 1J4FA59S0Y
Owner complained of nasty noise in clutch after oil change at dealer-dealer advised new clutch needed again-When I 1st drove it I heard nothing-clutch worked great-no noises.Went start vehicle to move off the rack and would not start-no starter engagement-like...
2006 Jeep Commander (Truck) Limited 5.7L Abs Light VIN: 1J8HG58226
Hello. On this vehicle i was having abs problems and abs, track and esp lights were on all the time. Then i fixed the wiring and replaced abs module and motor from the dealer. I sent the vehicle to reprogram abs module, but abs light continues on (flashing) wi...
2007 Jeep Liberty Limited 3.7L Check Engine Light VIN: 1J4GL58K67
Cel on , runs fine. Checked freeze frame, sets code @ 150rpm?!. Advised customer to replace poor battery last time in due to wierd rpm reading when cel set. Wal mart took care of that for us. Code is cleared and will come back on next day. I am thinking pcm i ...
2008 Lexus IS250 2.5L Misfire VIN: JTHBK26288
After driving for serveral minutes vehicle mil starts flashing and goes into fail safe mode. This occurs when accellerating under light throttle. It stays in this mode till shut off and restarted. Then it runs good for a few miles till it does it again. We hav... Trouble codes: P0304 (cylinder 4 misfire)
1999 Lincoln Town Car Cartier 4.6L Battery VIN: 1LNHM83W1X
I would to thank anyone that try to help me. This Car have a draw of .403 mA. When I unplug the LCM, all the draw when down to .032 mA. So, I replace the LCM, and still no fix. I have unplug every circuit that hook to the Light Control Module circuit, the only...
2000 Lincoln Navigator 5.4L Poor Idle Quality, Poor Fuel Economy VIN: 5LMEU27A8Y
Hello everyone, I appreciate in advance everyone's help. This time, it's my wife's vehicle & she's been complaining that the truck is running horrible. When I got off from work, I grabbed my portable handheld scanner & I have a P1151 code that is current. I n... Trouble codes: P1151 (Lack of HO2S-21 Switch Sensor Indicates Lean)
2003 Mazda Protege5 2.0L high idle VIN: JM1BJ24553
any mazda gurus seen this problem idle races at 2000 rpm aND THEN IF YOU RESTART IT IT GOES AWAY... SHE SAYS
2005 Mazda 6 S 3.0L Lifter noise VIN: 1YVHP80D95
2005 Mazda 6 V6 motor ticking noise from rear head sounds like a lifter or follower we did a oil pressure test had good oil pressure 40 psi at idle warm and about 80psi at 1500 rpm we replaced all the lifters and inspected the followers noise is still there. N...
1991 Mercedes-Benz 300E 3.0L lock housing VIN: WDBEA30D4M
ok ,this is something i have never ran into before.i removed key & tumbler assembly from the car,bought all new key,tumbler,& housing. i put the tumbler in the housing & turned it to check movement, the housing is now stuck 180 from original position & will no...
2006 Mercedes-Benz G500 5.0L No Start VIN: WDCYR48F26
Hi MB experts, this G500 has an intermittent no start (crank crank but no start), I know they're known for the crank sensors but this one has been already replaced at the dealer 15 days ago and car acted up again 2 days ago.Other than that the car runs perfect... Trouble codes: 2034 (L5 crankshaft position sensor)
2010 Mercury Mariner 2.5L Unknown VIN: 4M2CN8B77A
Hey all, Got this Mariner in 2 weeks ago. The customer had taken it to the dealer and was told that it had to much oil in the system.[apparently high head pressure or issues with this make ???] When they dropped it off here and we drove the vehicle into the se...
2003 Nissan Sentra GXE 1.8L No Start VIN: 3N1CB51D93
I have this nissan. did a head gasket to it because of leakage. replaced timing chain and all components. vehicle will not start. i get injector pulse and ignition coil pulse while cranking one time at the start of crank then pulse goes away. car ran before th...
2007 Nissan Pathfinder SE Off-Road 4.0L abs VIN: 5N1AR18W97
Vehicle came in with VDC off,SLIP, 4WD, and ABS lights on. All lights came on at the same time. Scan reported DTCs C1101 (RR wheel sensor), and C1156 (steering angle sensor communication circuit). Road test reveled no speed signal for the RR wheel. The sensor ...
2006 Subaru Impreza Outback Sport 2.5L Excessive Emissions VIN: JF1GG68696
Car came in failed state emissions test.Nox is over limit.Had a code for po420 cat efficeiency,replaced front cat no more po420.Thinking this was end of story sent for emmisiions test and failed nox again.Checked egr operation OK, added bg 44k and drove till t...
1995 Toyota Camry LE 2.2L No Start VIN: JT2SK12E1S
The car came in with no start found no spark so replaced dist. Still had no spark so I replaced the ignighter . And now I have a weak spark checked the injector pulse and did not find any changed the ECM with a used one and still no pulse or strong spark pleas...
2002 Toyota RAV4 2.0L Engine VIN: JTEHH20V42
Will start form time to time, and stays running. Most of the time it will only crank. All sensors seem to be functioning. With scaner, PID: IGN, reads 0 with key on. Fuel pump works fine when cranking.
2002 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B32
Greetings, I started a new job today as a used car tech at a local nissan dealer and the first car they give me is a headache vehicle they have had for nearly a year. History as told to me: The vehicle had sat in a garage for 4 years or better. I am not sure ... Trouble codes: P1135, P1155
2005 Toyota Camry 2.4L Surge VIN: 4T1BE32K85
Vehicle seems to have a definite surge under medium to hard acceleration yet it seems to go away after 40 mph. Performed a smoke test, no leaks evident and air intake hose is not cracked...ideas?

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 740i 4.4L Mechanical VIN: WBAGG8343Y
sorry I took to [...] to close request thanks for all your help. I had the tool just couldn't find it but it was super simple with tool
2006 Chevrolet HHR LT 2.4L eps VIN: 3GNDA23P86
I took this vehicle to a competitor with a laser based alignment machine to double check my work. Competitor confirmed the alignment. Following the competitors alignment the memory steer was still there. Brought vehicle back into our bays and started going bac...
2012 Chevrolet Silverado 3500 HD LTZ 6.6L Won'T Run Sometimes VIN: 1GC4K1C89C
Thanks everyone for the help. Learned a lot.the main problem was the connection at the transmission module on the fan shroud.In testing the resistance at the data connector we noticed that when the problem was there it was 130 ohms or whatever, but when it was...
2001 Dodge Caravan SE 2.4L Stall, MIL Lamp on VIN: 1B4GP25B01
2002 Dodge Ram 1500 Van 3.9L Surge, MIL Lamp on VIN: 2B7HB11X32
With a big "Thank You" to All, We are Still Stumped with this due to Time Factor its back to the drawing board. Using the DRB III, We get 5.0 Volts only all the time and Codes are set for "Short to Power" with in 3 to 4 Min After start-up, Cold or Hot. Other S... Trouble codes: P0031 (O2 Sensor Heater Low Voltage S11), P0037 (O2 Sensor Heater Low Voltage S12).
2002 Ford Escape XLT 3.0L No power VIN: 1FMYU04102
Car had a bad converter thanx for your help!! It was melted inside
2004 Ford Focus ZTW 2.3L Poor Idle Quality, Stall VIN: 1FAFP35Z24
Thanks for everyone's replies, they are all very helpful. The final repair is done and car is gone. I have the intake apart for a few days and installed the IAC Valve upside down. Be carful on this because it looks like the valve won't go in upside down becaus... Trouble codes: P0507 (Idle speed higher than expected).
2006 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTSX21P16
First, thank you all for the tips and help!! I learned alot more about these with this one. I had high pressure oil issues on my own truck close to a year ago and learned some but this one taught me more. The stand pipe dummy plugs were deffinetly a problem. A...
2008 Ford Fusion SEL 3.0L brake pedal VIN: 3FAHP081X8
Thanks for all the replies, information was very helpfull. Waiting for vehicle to return!!
2012 GMC Terrain SLT 2.4L power liftgate VIN: 2GKALWEK6C
As the old saying goes.."if you want it fixed right, do it yourself"..a special thanks to Richard from Texas..his first post nailed it..I decided to check out the truck myself and I dont know how in the H the other shops and my guys missed the broken wires and...
2004 Lincoln Navigator 5.4L Cooling Systems VIN: 5LMFU27R44
First i want to thank everyone for your help we ended up putting a new raditor in the car and it fixed the problem. I left the fan clutch on and the new tstat, i really feel the fan clutch wsa not doing it's job and the raditor was cloged.
2004 Mercedes-Benz E500 4Matic 5.0L Ride Control VIN: WDBUF83J34
2004 Mercury Mountaineer 4.0L Not Specific VIN: 4M2ZU86K44
The battery saver relay was bad, and the fuse number 15 in the underhood fuse box was missing completeley. Some one apparantly tried to wok on the vehicle before us. We finally traced it to that fuse. Once we put the fuse in, the relay was clicking off and on,...
2002 Nissan Pathfinder SE 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: JN8DR09X82
Idle problem was the ecm found the circuit that was bad they couldnt find anything with the coil drivers i have a new pcm just need the nats program i dont know for sure if it is going to fix the coil but 99% sure that it has bad softwear in the ecm i will ema...
1999 Plymouth Grand Voyager 3.3L Serp Belt VIN: 2P4GP24R1X
Wow 53 replies. I wonder if that is a record? As most suggested, use the updateD gates kit 38379K. Comes with guarded tens pulley and double sided belt. Pricy but worth it. Thanks for help guys, JIM
1994 Pontiac Bonneville SE 3.8L No Start VIN: 1G2HX52L8R
The problem is with the harness from ICM to crankshaft position sensor, I load tested it with a headlamp and flexed the harness during testing and it would break down the circuit, customer has to wait for money to repair at this time. Thanks guys for all the t...
2003 Saturn Vue 2.2L Unknown VIN: 5GZCZ43D53
ok we reprogram the tcm and vehicle speed reads good on tcm pid but tranny is still not shifting. we think is probably a problem with the valve body don't know for sure. owner sold the car to someone else. sorry for not posting a fix, and thanks for all the he...
1997 Subaru Legacy LSi 2.5L 1-2 shift VIN: 4S3BD6650V
Customer is going to wait for now. Doesn't want to spend more money at this point. Will update if I see it again. Thanks to all
2006 Subaru Outback XT 2.5L No Start VIN: 4S4BP67C26
Thamks for all the help but this was a dumb mistake the coil wires on the r/s were pluged into the wrong coils.I check for power and ground but not wire color till this morning sorry for wasting your time Thanks again Tom
2005 Toyota Corolla CE 1.8L Evap VIN: 2T1BR32E35
The evap canister assembly was the problem. Replaced and all is good so far.
2008 Toyota 4Runner SR5 4.0L MIL Lamp on VIN: JTEZU14R48
Hey guys thanks for waiting but the car has not returned, so I will close this for now and re open this help request when it returns. Thanks again. Trouble codes: P0441, P0455.
2000 Volvo S70 2.4L fuel system VIN: YV1LS61J1Y
Well I have and have not fixed the S70. Today I replaced the fuel damper (Volvo calls it a regulator). Started the car, ran great, smiles all around. As I said, it is car of a friend, the shop was slow (an understatement) so we took a test drive. He drove ...
2006 Volvo XC90 2.5T 2.5L Shift lever VIN: YV4CY59296
Hello Volvo Techs We checked the brake lights, power and grounds to shift solenoid all were good, so we follow the advise of lubricating the solenoid and shift lever mechanism and that did the trick, we did not have to replace any parts. Thank you again for ...
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