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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 12, 2012
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2008 Audi A6 Quattro 3.2L Misfire, MIL Lamp on VIN: WAUDH74F38
This is the first one of these direct injection ones we've dealt with and I don't see much info out there on injector issues. I do find that there might be a reflash for misfire codes but there is no mention of the injector code anywhere. Has anyone dealt with... Trouble codes: P0304 (Misfire 4 cyl.), P0272 (4 fuel injector contribution balance fault)
2001 BMW X5 4.4i 4.4L Engine VIN: WBAFB33551
BMW Guys & Gals. I have an 01 X5 4.4 that needs engine.It is now in my shop,with an engine that someone partially disaasembled.I have sold the customer a used engine. Looking at which way is the best way to R&R it. One member from IATN advised to pull tran and...
2005 Cadillac STS 4.6L right side valve cover VIN: 1G6DC67A95
Customers complaint is ticking noise from engine, noise coming from right side valve cover center, removed cover and all lifters and rockers felt tight, cams not worn although noise happens after warmed up and by the time you get cover off cools down, engine i...
1999 Chevrolet Tracker 2.0L Unknown VIN: 2CNBE18C4X
auto is like new. has terrible vibration while running. removed alt/ a/c belt goes away. can't figure out whats making it vibrate. no engine noise, no codes. give it a little gas it goes away. in gears it vibrates very bad. seems worse in reverse
1999 Chevrolet Malibu 2.4L Engine VIN: 1G1ND52T2X
Owner of vehicle said car stalled out and started acting funny after vehicle was re-started. It threw codes that prompted customer to replace TPS, crankshaft position sensor and fuel pressure regulator. He also installed new plugs and upstream oxygen sensor an...
2001 Chevrolet Suburban 1500 5.3L transmission VIN: 3GNFK16T41
After installing the jasper transfer case we drove the truck around the block and it was very noisy.The noise was coming from the new transfer case.We removed the decoder motor and installed the one from the original transfer case and the noise is almost gone....
2004 Chevrolet Monte Carlo SS 3.8L Blower motor @ Radio VIN: 2G1WX12K34
Vec came in with Blower motor and Radio intermitant inop when hitting bumps works fine this morning.Looked to see comand aera in elec. digrams found comand ground G203. locator I have does not show a good pic to inspect I found G201 and G202 clean and tight.Af...
2004 Chevrolet Express 2500 4.8L ABS Module VIN: 1GCGG25V34
Sorry in advance, this is going to long but I want to be as thorough as possible. Complaint: ABS lamp on and intermittent instrument cluster operation. Here is what I have found and done so far. ABS history codes C0035 and C0040. No current codes. Codes will n...
2005 Chevrolet Cobalt LS 2.2L No Start VIN: 1G1AL52F55
Car came in with starter not engaging and engine wouldn't turn with breaker bar on crank pulley bolt. Checked timing chain and it wasn't broken or loose. Next I removed the starter and found some sort of metal plate wrapped around the flywheel teeth, keeping t...
2007 Chevrolet Aveo LS 1.6L horn VIN: KL1TD56657
Tried locating the horn relayunder the dash I cannot locate. Is the relay under the dash or inside the fusebox? I was going to wire an external relay for the horn but inspecting the harness for the horn button indicates the circuit flows thru the airbag module...
2008 Chevrolet Cobalt LT 2.2L air bag VIN: 1G1AL18F98
we have this 2008 cobalt with 2 codes p0019 and b0020 -04 pasenger frontal deployment loop stage 2 open circuit.we find the codes with the explaination but no links to the flow charts for repair/diagnosis. does any body have a flow chart or know a link so we c...
2011 Chevrolet Impala LT 3.5L seat adjustment VIN: 2G1WB5EKXB
This is my wifes personal vehicle. I was driving it 2 days ago and a rear seat passenger asked if I could give her some more leg room. When I moved the seat forward the engine stalled. This was while going 50 or 60 MPH!. Put in neutral and restarted OK. After ...
2007 Chrysler Sebring Touring 2.4L Heater VIN: 1C3LC56K37
This car came to me with the complaint that the heat will intermittently go ice cold for about 3 minutes while driving. It is a manual climate control system. All the actautors are electric. I think there is either a control head or blend door problem. All the...
1996 Dodge Ram 1500 5.9L Abs Speed Sensor VIN: 1B7HF16Z0T
Abs light on. Flashes 9 short flashes and 1 long flash (code 10). I can't find the resistance specs for any sensor or the circuits. Cleared the code and comes back as soon as you start moving.
2003 Dodge Ram 1500 SLT 3.7L valvetrain VIN: 1D7HA16K63
Thank you reading this. This 2003 Dodge Ram 3.7l has the exhaust valves on cylinders 4 and 6 with the valve stems pushed up through the valve retainers. This caused the rocker arms to fall out. Had anyone seen this before? Also has anyone had the heads off, an...
2009 Dodge Journey SXT 3.5L 2-3 shift VIN: 3D4GG57VX9
Hi fellow techs: This van will not shift past second gear. Before I go any further I need to say that it is my moms van and she lives 700 miles away in Tenn. The problem occurs maybe 2 to 3 times a month and started back in March of this year. I have few detai...
1994 Ford Explorer Eddie Bauer 4.0L No Start VIN: 1FMDU34XXR
Hello, My name is Jake and I work at [...] Automotive in clovis. I have an eplorer that is acting quite strange. It will crank over and start everytime I try just as long as I hold the ignition switch in the right spot, somewhere between the run and start pos...
1995 Ford E-150 Econoline 5.8L All shifts VIN: 1FDEE14HXS
Thanks for any help on this I am sorry if I seem like a rookie on this but I know little about older Fords. So this thing jerks hard into all gears, O/D light is flashing and ABS light is illuminated. I want to start by reading the codes but after an exhaustiv...
1997 Ford Contour GL 2.0L clutch slips VIN: 1FALP6538V
We installed the new clutch kit including clutch disc, pressure plate and slave w/ bearing. We also replaced the flywheel with a new one. All parts were from napa. During test drive the tech noted that it slips in 4th gear. I have never had a problem with a na...
1997 Ford F-350 7.3L No Start, Surge, Stall VIN: 1FYJW36F5V
Hello Ford techs, this truck was towed in, no start. Found a code for cam sensor and got it started with staring fluid. But ran very poorly, miss and buck when driving and sometimes die and not restart. So then we found fuel in oil, so resealed injectors, they...
1998 Ford Explorer Eddie Bauer 4.0L No Start, Poor Fuel Economy VIN: 1FMZU34E1W
Ihave checked fuelpressure/poor.Replaced pump&sock.Check fire at coil/none.Replaced transceiver at key lock,now I got spark at da coil but still no injector pulse.Changed crank sensor with factory 1 Ihad on da shelf,still no injector pulse May the ECM be bad (...
1999 Ford Ranger XL 2.5L No Start, Cuts out, Stall VIN: 1FTYR10C3X
truck came in with no start at times started truck multiple times checked fuel pressure and volume ok went to start truck it was like timing belt broke turns over real fast like no compression timing is ok let sit for a while truck started fine drove ok came b...
2005 Ford Escape XLT 3.0L Poor Idle Quality, Stall VIN: 1FMYU931X5
Hello iATN, I got a dandy in my bay currently, this was a vehicle that we got at an auction and had to be towed in..Initially the car was very low on power and would not accelerate. Catalytic converters had came apart and plugged the exhuast. Today I replaced ... Trouble codes: P1000
2006 Ford E-250 4.6L Suspension VIN: 1FTNE24W06
Hi, Van needs Upper Ball Joints due to wear. My question is: Is it considered Safe/OK to replace the Uppers only, even though I am pressing the Lowers out in order to replace the uppers & reinstalling the Lowers? Is it OK to reuse the Lowers if they have no we...
2007 Ford F-550 Super Duty Lariat 6.0L Hard Start/No Power
Truck towed in, would barely run, drove into shop at full throttle just above idle, checked for codes, none found, checked FICM voltage 47.5, checked oil, no reading on stick, replaced both fuel filters, primary looked gooey, changed engine oil and filter, sti...
1992 Honda Accord EX 2.2L Brake VIN: 1HGCB7679N
This car came in with a soft spongy brake pedal. I bleed the system but still has a soft pedal. I read Honda requires a special electronic tool to properly bleed the system. I guess it's like the jeep procedure. Does anyone have any experience with this or has...
1998 Honda Prelude 2.2L shift interlock VIN: JHMBB6248W
We can't seem to find out what is causing this mode switch on the side of the transmission to fail? Any help is appreciated.
2006 Hummer H3 3.5L Starting VIN: 5GTDN13666
thanks in advance for helping with this problem child. The car came in for an update, so we started to do the flash and it failed to download and then lost comm. with pcm. Tried new pcm and tried to programm new pcm with no sucess and the check engine light wi...
2006 Lexus RX400h 3.3L Battery/Starter VIN: JTJHW31U96
Customer has had to jump start vehicle numerous times. AllData and Mitchel don't provide a lot of information regarding the manner in which the auxillary battery is charged. Given the fact that there is no "alternator," properly speaking, our MicroVat is not t...
2002 Mazda Tribute ES 3.0L torque convertor VIN: 4F2YU09122
I would first like to preface this request by stating that I am by no means a transmission guy so please bear with me. The vehicle came to us from auction (we are a used car dealer) and any kind of maintenance, service or repair history is available. I pulled ...
1993 Mercedes-Benz 190E 2.6 2.6L pedal
Hey guys, this little car is eating my lunch. It came into the shop for a couple of loose tierod end and repack front wheel bearings. My tech pushed the pistons back to remove calipars. Reassembled everything and now the brake pedal is soft like a bad master. ...
1994 Mercury Topaz GS 2.3L Surge, Stall VIN: 1MEPM36X0R
Hope someone can help me on this one. customer complait is a surge at idle when coming to a stop. Problem happens on a warm engine, not quite to operating temp.(170-180 degrees) watching all suspect pids on the scanner shows nothing. cts, tps, maf. all look ok...
1999 Mercury Cougar 2.5L No Start, Stall VIN: 1ZWFT61L9X
Customer states that car died while idling and would not restart. Sat idling for approximately 15 minutes while eating lunch. Fuel pump does not come on. Checked violet/orange wire at fuel pump harness for battery voltage, found to have 6.2 volts. Fuse #14 i...
2002 Mercury Sable LS Premium 3.0L High Idle VIN: 1MEHM55S62
Hello IATN, I have a 2002 Mercury Sable with a 3.0L DOHC. At start up the car jumps to 2000rmp before settling down to 1200rmp. I have repaired 2 vacuum leaks and the idle is still high. I can hear alot of air being forced into the intake to the sound of being...
2004 Nissan Titan LE 5.6L No Start VIN: 1N6AA06B54
I have a 2004 Titan 5.6L that cranks but won't start. There is no "check engine light" and I cannot communicate with the ECM. The cooling fan runs whenever the key is on. I can communicate with all other modules, and have the dreaded U1000 stored. There appea...
1996 Oldsmobile Aurora 4.0L No Start VIN: 1G3GR62C9T
Greetings to all, this Aurora came in orginally running poor, began misfire testing, cleaned & swapped a few spark plugs for testing purposes, misfire seemed to go away. Went to road test and now no start, cranks okay, has fuel pressure and spark, no injector ...
2006 Pontiac G6 3.5L Evap monitor VIN: 1G2Z558664
I can not get this car to run its evap monitor, it has the proper amount of fuel and have ran the drive cycle as factory specs on a dyno, all other monitors have men and im trying to smog this car but in california there is a grey area where it can affect your...
1997 Subaru Legacy Outback 2.5L Cuts out, Stall, Misfire, MIL Lamp on VIN: 4S3BG6852V
Hello everyone and thanks for taking the time to help. Vehicle came in with codes P1540 Vehicle speed sensor malfunction and DTC P1507 Idle control system fault. (fail safe mode) This is the second time this vehicle has been to the shop for the same concern. ... Trouble codes: P1540, P1507
2004 Toyota Camry LE 3.0L Engine timing
Okay, this one has got me completely baffled. Came to me from a neighbor who started to replace a leaking water pump, removed the timing covers, started disassembly - realized he was in over his head and asked for help. Installed a new Gates component kit wit...
2006 Toyota Camry XLE 2.4L rear defroster VIN: 4T1BE30K16
This is just a question of those who have had previous experience locating the rear defroster power and ground circuit locations. Our customer has no rear defroster but does have power at the grid when the switch is actuated. the ground circuit is full time bu...
2007 Toyota RAV4 Sport 3.5L U-joint VIN: JTMBK32V87
Looking for a ujoint for this vehicle I have seen them done but I am unable to locate a supplier to get them can any one help
1998 Volvo S70 2.4L Starting VIN: YV1LS5537W
Looking for help on this one, I am new to these older Volvos. Vehicle towed in for intermitent "No Crank, No Start." When I turn the key to first position(ACC), all the lights on the dash illuminate as they normally should. When I turn the key to engage the st...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2006 Audi A6 3.2L Heat VIN: WAUDH74FX6
well!! it seams that for some reason afther I replaced the PWS valve with no change and messing around with the temp sensors and a week later the car works bettefr. not that is fixed but it is manageble now. the customer is ok. with it and does not wanna spen...
1996 BMW Z3 Roadster 1.9L Starter
Thanks for the suggestions guys, this car is down the road! Replacing fuse #7 in the junction box (central locking module),resulted in the car starting and it didn't fail again.If the fuse blows in the future I informed my customer to replace it and see me im...
1999 BMW 528i 2.8L engine overheating VIN: WBADM6333X
everyone was right... water pump impeller separated from shaft resulting in no flow except for when heat was commanded and the aux water pump was enabled. replaced leaking radiator, thermostat and water pump.. thanks guys, my first request fixed two business d...
1992 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR53L1N
Thanks for all the help guys! I found that in the past there had been a broken serp belt. The belt had slapped the wiring harness going to the cam sensor & the bare wires were shorted together. I repaired the shorted wires & that fixed the problem. Thanks,Bill
1999 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1GCEK14T3X
well thanks for the replies on this . truck would not start this morning hooked up fuel gauge and had nothing had 50 the other day . so banged on the tank got it to run and hooked up the scope to the pump and it was all over the place. replaced the pump and ru... Trouble codes: P0102.
2004 Chevrolet Colorado LS 3.5L 4 wheel drive VIN: 1GCDT13694
Thanks for everyone's help. I had the truck out the door for good. I replaced with a new 2/4 switch and it did the same thing. Recheck the 2/4 switch and check the neutral switch; both were grinding off a little portion around the ball end area. Call dealer ...
2008 Chevrolet Impala LT 3.5L Mode Door Actuator VIN: 2G1WT55NX8
2010 Chevrolet HHR LT Panel 2.2L MIL Lamp on VIN: 3GNBABDBXA
Thanks for all of your suggestions. I replaced the Intake solenoid and all has been good since then. I appreciate the help. Trouble codes: P0010 (Intake Cam Actuator valve solenoid circuit), P0011 (Intake Cam Postion System performance).
1985 Dodge D150 5.9L No Start VIN: 1B7HD14W0F
Thanks for sticking with me on all your replies, really appreciate it. I spent alot of time chasing my tail on voltages as I was expecting 12V on both sides of coil with key on, been along time since I've diagnosed one of these. Once I got my head on straigh...
1999 Dodge Ram 2500 5.9L no speedometer VIN: 3B7KF2361X
replaced the speed sensor in the rear diff. Still no fix. Replaced the wires between the diff and the plug behind the left had inner fender. Now it works fine. The wire looked like it was "overheated" Just to find out if the old sensor worked I put it back in ...
1999 Dodge Ram 1500 Laramie 5.9L Misfire
We are going to have to close this one without a fix. Thanks to all of you that offered help and suggestions, we did everything we could with the exception of pulling the head and checking for cracks between the valves (which is what a lot you said it might be... Trouble codes: P0132 (O2 Sensor Shorted to Groudn), P0300 (Misfire), P0302 (Cyl 2 Misfire), P0304 (Cyl 4 Misfire), P0306 (Cyl 6 Misfire).
2007 Dodge Caliber SXT 2.0L No Throttle Response VIN: 1B3HB48B67
This one was crazy, the problem ended up being an intermittent along with what I feel is a glitch in WiTech. The main relay which supplies power up to the PCM and is integral in the ETC Motor circuits + and - was intermittently failing. We caught it once when ...
2004 Ford F-450 Super Duty XL 6.0L No Start, Stall, Misfire VIN: 1FDXF46P14
Well, this one is fixed...thanks to everyone for taking the time to post their thoughts! Special thanks to Ryan, who said I may have more than one injector causing compression into the fuel. Well although all my factory reman injectors had only 100 miles on th... Trouble codes: P0275 (cyl 5 contribution).
1996 Geo Tracker 1.6L clutch release VIN: 2CNBJ1361T
1993 GMC K1500 Sierra SLE 5.7L MIL Lamp on, won't shift VIN: 2GTEK19K7P
Thanks to everyone that took the time to reply & help me out. Especially Adam he sent me a very detailed way to sort everything out. Actually this truck had 2 problems I found a bad wire going to the buffer from the sensor, and the buffer it self was bad. Tha... Trouble codes: 24 (no speed from VSS), 43 (esc).
2005 GMC Envoy XL SLE 4.2L Surge VIN: 1GKET16S25
Customer chose to take it to the dealer. Overall other intermittent problems occured while here like windshiled wipers and other lights coming on it was taken but checked basic components and everything didnt find anything.
1990 Honda Accord LX 2.2L RH door VIN: 1HGCB7152L
See fix info in original message. I only got five comments. Two techs said that I went to a lot of trouble to get the door open, they said that it was not that hard to remove door panel with door shut, I will keep that in mind. One tech said to remove outer do...
1997 Honda Civic LX 1.6L Stall VIN: 2HGEJ6674V
After I did spend 15 hours on diagnoses this problem. On each trip I did spend 2 hours to make problem shows up. I did conect my scanner and notice that map sensor goes from 9 psi to 18 psi and SF trim goes to negative max. I did several test EVAP, Brake boost...
2003 Honda Civic Hybrid 1.3L MIL Lamp on VIN: JHMES96643
I am closing this help request for now. Thanks to all who replied. This car has a brand new battery from Honda. That is not the problem. We are finding that most aftermarket scanners will not read all the other codes that may be in this cars other computers. P... Trouble codes: P1600.
2004 Honda Pilot EX 3.5L Misfire VIN: 2HKYF18694
adjusting valves solved misfire thanks to all who responded
2005 Honda Accord LX 2.4L compressor VIN: 3HGCM56445
Went ahead and had him replace the relay as many of you suggested but that didn't help. I didn't get down that weekend but went this one armed with what I know and everything posted took a compressor with me. Turns out the coil on the clutch had failed open....
2006 Hummer H3 3.5L fuel injectors VIN: 5GTDN13626
Thank you all for your assistance. I acquired a new snap-on scanner. I went through all the anti-theft checks and reset options. I don't know exactly what fixed the problem but the vehicle is now running and has no theft light on, on the dash. When it fina...
2005 Jeep Grand Cherokee Laredo 4.7L No Start, Stall VIN: 1J4HR48N35
I have fixed this car. I got mixed answers on if I could use a used PCM. I gave the dealer the option and they went ahead and wanted to try the used PCM. We ended up trying it, with a reflash and it worked okay. Started the vehicle right up with no issues. No ... Trouble codes: P0406, P0113, P0118, P0108, P0123.
2008 Mazda 3 i 2.0L Poor Idle Quality VIN: JM1BK12G98
Funny how sometimes we overlook the easy repairs, carb cleaner in the throttle body fixed it. What threw me off was a code that I erased by mistake when the car came in, that related to the fly by wire assy. I think she is going to pick the car up and fix the ... Trouble codes: P0012 (Intake Cam Over-retarted).
2008 Mercedes-Benz E350 4Matic 3.5L Unknown VIN: WDBUF87XX8
Thanks for the responses Marvin from texas got it, Despite trying my best to follow the 1mm thick bead of rtv in the locations that the factory tsb states. I must have used to much the front bearing of the intake cam was completly wiped out. Major screw up wil...
2002 Oldsmobile Alero GL 3.4L engine VIN: 1G3NL52E22
After market ignition coil was bad. Installed new O.E.M. coil and used heat sink compound. All is well.
1979 Porsche 911 SC 3.0L starts and dies
Thanks to all that replied. I had to turn the CO mixture screw about 15 full turns to get it to start and stay running.I don't know why it was so far off but it is fixed. It has a dead cylinder that customer said wasn't that way when stored. I don't know why t...
2008 Subaru Impreza Outback Sport 2.5L Heater VIN: JF1GH63648
Howdy all, My customer elected to do this job himself. He was going to report back and tell me if replacing the heater core solved his problem. There was not a very noticeable difference between the inlet and outlet hoses. The driver's side blew very hot and t...
2005 Toyota Tundra SR5 4.7L MIL Lamp on VIN: 5TBBT44195
Thanks to all who replied. I have not been able to have the customer leave his vehicle for further diagnosis. It would appear that graphing the front A/F sensors and the rear O2 sensors would be the best posible way to find out what is going on. Also It was a ... Trouble codes: P0138.
2006 Volkswagen Jetta 2.5 2.5L SRS Light on VIN: 3VWSF71K56
Hi guys and thank you to those who took the time to share a little wisdom. The problem was the clock spring. I tore it down and found 2 bad wires on the c/s. Replaced and retested,,, ALL IS GOOD!!! Thank you again, IATN ROCKS
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