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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 19, 2014
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
2005 Audi A4 1.8L Inst.Cluster Headlight Washer VIN: WAULC68E15
Hello techs first customer complaint of wipers moving slow.battery light flickering,dash lights dim and inst cluster display dissappering.this also always happens when u use wiper switch.swapped out complete wiper switch,motor n links.swapped out electric cont...
1986 BMW 535i 3.5L hydra boost
OK guys I need some info on this thing. 1st car came in with brakes staying applied. narrowed problem down to a bad hydraboost.replaced hydraboost and all was ok for a few days, and then it happened again. removed master and found fluid coming from booster, su...
2001 BMW X5 3.0i 3.0L MIL Lamp on VIN: WBAFA53541
I believe I have repaired all of the pre-catalyst fuel trim issues with the vacuum leak repairs. The P2096 code has always been in the code history, I ignored it until I had the other fuel trim codes repaired. Now my focus is fixing this code. There are no d... Trouble codes: P2096 (Post catalyst fuel trim system too lean bank 1), B0MW, 225 (Fuel trim control after bank 1 catalyst)
2009 BMW X6 xDrive50i 4.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 5UXFG83519
This X6 came in with misfire codes p0300-p0301-p0303-p0304-p0305-p0307 Hesitation and Poor Idle Quality we R/R updated injectors updated coils spark plugs fuel pressure sensor pcm software update after the road test the same misfire code came back we CK the bo... Trouble codes: P0300, P0301 (Cylinder 1 misfire detected), P0303 (Cylinder 3 misfire detected), P0304 (Cylinder4 misfire detected), P0305, P0307
2011 BMW X5 xDrive35d 3.0L MIL Lamp on, limp mode VIN: 5UXZW0C5XB
Vehicle had Check engine light turn on after sitting for 2 days.Started up and vehicle and drove 1/4 mile, light turned on and vehcile went into limp mode. Made basic checks on system and checked fuel pressure regulator found no issue and sent vehicle to deale... Trouble codes: P0088 (Fuel Rail/System pressure too high)
2008 Buick Enclave CXL 3.6L Surge, Misfire, VIN: 5GAEV23768
Hey gang! Got what I think is a transmission problem. Not a transmission guy, so I'd like a second (or 3rd or 4th or 42nd) opinion. Allow me to submit for your consideration one 2008 Buick Enclave CXL. Said vehicle displays a misfire-type feel while driving in...
1993 Chevrolet Corvette 40th Anniversary Edition 5.7L lubricant VIN: 1G1YY23P8P
We just installed a good used 6speed manual trans, what type of lubricant is recommend for this trans? We filled this unit with Penzoil synchro mesh. It is a little too noisy for the customer in neutral clutch out. We understand these units are prone to be noi...
1999 Chevrolet C2500 Suburban 7.4L Cuts out VIN: 3GNGC26J5X
After truck is driven and hot car will cut out and imediatly restart if you pull on the wiring harness on right side of engine it will stall this will not happen with our snap on verdict hooked up the left side harness is ok even where it goes by the egr valve...
2003 Chevrolet C4500 Kodiak C4C042 6.6L fuel line VIN: 1GBC4E1183
hi all and thank you in advance, what I am trying to find out is what the fuel press. would be on the return line at the fuel cooler. I have a leak on that line and can't buy it discontinued. ( SHORT 12" LOOKS LIKE RUBBER LINE) so I have been told by dealer, I...
2005 Chevrolet Corvette 6.0L message service VIN: 1G1YY24U45
"Service ride control" on message center, no codes in the eng, body, ext.
2007 Chevrolet HHR LT 2.2L Steering VIN: 3GNDA23D87
Hello, i have one here that i don't understand. vehicle came to me with a noise over bumps. found to have faulty front center sway bar mounting bushings. replaced them, test drove. ok... now i have it return with hard to steer complaint.yep, hard to steer. put...
2005 Chrysler PT Cruiser Touring 2.4L unknown VIN: 3C3EY55E45
car came to us from used car lot complaint was jerking sidi to side when hitting bumps also excessive torque steer inspected ft end found VERY loose r/f outer tie rod end and slightley worn ft sway bar bushings and worn engine mount (the one on pass side at bo...
2003 Dodge Durango Sport 4.7L 4 wheel drive VIN: 1D4HS38N73
The 4wd light comes on after 20 seconds. The 4wd is inop. The only code in the TCCM is "Internal Error". I have replaced the TCCM, no change. On the scanner the 4wd switch pid reads ???. I replaced the switch, no change. I have checked all circuits and recheck...
2001 Ford F-150 Lariat 5.4L antitheft VIN: 1FTRX18L11
Truck was towed in no start. Customer stated he started vehicle and put in reverse. Started to move and died. Will crank but not start.Theft light blinks fast. No odometer, just dashes accross display. Tried to run scan but will not communicate. Left key on an...
2007 Ford F-150 XLT 5.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FTRW12537
Replaced Intake manifold gasket set. That solved the vacuum leak. The misfire continued. Did a compression test on all 8 cylinders. All had over 150psi except #8, which only had 32 psi and sometimes less. We took out left hand cylinder head and found #8 piston... Trouble codes: P0205 (Injector 5 circuit malfuction)
2007 Ford Escape XLT 3.0L 1-2 VIN: 1FMYU93197
Trans was cooked, installed rebuilt transmission and now car will not take off in 1st gear. Takes off in 2nd, car will shift normal w/ zoom tool installed.Any Ideas?
2007 Ford Expedition XLT 5.4L Front Brakes Dragging VIN: 1FMFU15587
After 5-10 minutes , and or 5-6 miles of driving the front brakes begin to apply & not release. You can feel the vehicle start dragging like the brakes are applied. After returning to the shop we can get rotor temperatures as high as 550-600 degrees. The front...
2006 Honda Ridgeline RTL 3.5L H-Can VIN: 2HJYK16516
Vehicle has multiple codes. PCM code U1022. ABS/VCS Codes 91-1,92-1, 81-1, 25-1. VTM-4 Codes 41-1. Unplugging The VCS does not stop the VTM-4 communication code from coming up. However it only appears after the engine is started. The PCM code is hard. It appea...
2010 Isuzu NRR 5.2L turbocharger VIN: JALE5W161A
This truck has been through a couple of turbocharger units based on a P003A Turbocharger Boost Control Position not learned. Its back again for the same code though I cannot seem to duplicate it in the shop or on my test drives. The driver states it is going ...
2000 Jeep Grand Cherokee Laredo 4.0L Governor VIN: 1J4GW48S7Y
Hey all, this is my 1st help request in 8 years since I've joined. So here's what we have. 2000 JGC 4.0 4wd. This is a used car dealer's trade in that they brought us not shifting from 1st to 2nd, but then it will end up going into some type of limp-home mode,...
2005 Land Rover LR3 SE 4.4L Electronic VIN: SALAE25445
replaced tccm due to damage by battery acid. sent to another shop for coding, when returned will not shift out of first gear, has codes for clutch adapt and clutch pos. sensor circuit range/perf. p2789, p0806 any ideas appreciated. thanks
1998 Lincoln Navigator 5.4L airbags VIN: 5LMFU28L7W
Has anyone seen any problems with the switch along frame and could a Park neutral switch cause the problem with the air bags not to raise
1996 Mazda B2300 2.3L check engine light VIN: 4F4CR12A0T
I could really use some help. I am lost. The check engine light will not come on. It is getting 12v to the printed circuit but still no light. I've even used a donor bulb and cant get it to come on. can someone please point me in a direction of what else contr...
2005 Mazda 3 S 2.3L Misfire, MIL Lamp on, Pings VIN: JM1BK32355
This car came in pinging badly on accel and misfiring on cruise. EGR valve is new and ports are clear. Cam timing was off so we corrected that. Still pinging. Pulled intake and checked /replaced pcv and hose. No change. Checked crank sensor adjustment and scop... Trouble codes: P0300 (testing and results)
2008 Mercedes-Benz E350 4Matic 3.5L High Low Pressure, Low High Pressure VIN: WDBUF87X28
Car came in for warm air. checked line pressures, found low side at 60 and high side at about 110 psi. Inside vent temp about 45F. Did an evac and recharge. Inside temp went down to 30F and line pressures went to about 30 and 150. Cust took car and called back...
2003 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MEFM75MX3
greetings to all this car came to us with a code for the purge valve made some checks on valve and only thing we found was the ohms on the valve were not in manufacturers specs.replaced valve still same code.we tested for power and ground at valve and all was ... Trouble codes: P0443
2006 Nissan Frontier SE 4.0L blower motor and air condition VIN: 1N6AD07U66
air condition works on blower setting 1 only, blower doesn't work on setting 1, blower motor works on setting 2,3,4 only, no a/c on setting 2,3,4. BCM show a/c and blower request on fan speed 1, no request for a/c or blower motor on setting 2,3,4
2009 Nissan Rogue SL 2.5L CV Joint VIN: JN8AS58T79
Need opinions. Car came in for vibration on accell 20-40 MPH. Found right inner cv boot destroyed. replaced half shaft right side. Drove car still bad vibration. She has had this car since new so its not the "normal" vibration on these its severe and new. Now ...
1999 Pontiac Grand Prix SE 3.8L Hesitation, Stall VIN: 1G2WJ52K3X
step in hesitation off idle. can accelerate very slow and no problems. snap throttle to 10% and it almost dies. can control rpm with tech 2. new mass air flow sensor. egr at 0% fuel pressure normal. usually does it after idle drops and stabilizes. doesnt do it... Trouble codes: N0
1995 Toyota Pickup DLX 2.4L Hard start/no start VIN: 4TARN01P6S
Cold start is good,after running truck up to operating temp,195 to 200 deg.shut vehicle down for soak time of approx 10 mins.try to restart and it will either start and run rough or not start at all,unless you juice it with carb cleaner.scan tool readings are ... Trouble codes: 13 (Rpm signal circut short or open), 25 (Lean exhaust)
1998 Toyota Camry CE 2.2L Egr VIN: 4T1BG22K3W
Car came in with a P0401 insufficient egr flow. Tested system found bad egr modulator. Replaced modulator still same problem. Tested rest of system everything working good. Data stream showing egr valve opening. Passage ways not stopped up pulled vacuum on egr...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2008 Audi S6 5.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WAUDN74F78
Low fuel. Fuel quality was not as specs required. Carbon build up at intake valve. Clean carbon build up with VW G-001-700-03 fuel additive. Clear all PCM faults. Drove the car for 60 miles. All is FIX. ... Trouble codes: P1081 (004- Lean limit exceed), 00422.
2003 BMW M3 3.2L Misfire VIN: WBSBL93403
Thank you to everyone who took the time to try and help me out on this. I decided not to label this a confirmed fixed because all i have to go on at this point is theory. The vehicle stopped misfiring and was able to clear all monitors and pass Smog. I beli... Trouble codes: 208 (misfire 4), 209 (misfire 5), 207 (misfire 3), 210 (misfire 6), 213 (misfire multiple).
2011 BMW X5 xDrive35i 3.0L cooling system VIN: 5UXZV4C57B
Thanks everybody. This was an easy slam dunk, as everybody agreed. New water pump and thermostat, followed by the correct bleeding procedure and we are all set.
1991 Chevrolet V1500 Suburban Scottsdale 5.7L steering pump VIN: 1GNEV16K3M
Thank you for all your help. I realized that I put rack n pinion instead of steering gear box. Sorry about that. We put an auxiliary oil cooler on the system and it appears to have fixed the problem. I appreciate all the recommendations and help.
2008 Chevrolet Silverado 1500 WT 5.3L oil pressure VIN: 3GCEK13358
You guys are some smart SOB's I've got to admit!!!The people that said to check the screen,which I did not know even exsisted,where right on the money.The screen was not plugged BUT in the hole with the screen was a glob of teflon tape residue.I found it with...
2002 Chrysler PT Cruiser Dream 2.4L Cruise Controll VIN: 3C8FY68B52
Customer had to take car day after I poasted this. He has not brought it back yet. If he does I will repost. Thank you for all the help,greatly apreciated
2001 Dodge Ram 2500 5.9L Hesitation, Poor Fuel Economy, lack of power VIN: 3B7KC23711
Hello fellow techs, sorry for the delay in closing this post, but the by the time we installed a factory injection pump and the customer drove it long enough to gather the different fuel mileage readings he was checking, the time had ran out. I contacted my s...
2007 Dodge Ram 3500 ST 6.7L No Start, Stall, MIL Lamp on VIN: 3D6WG46A77
Thanks for all the replies. I was helping the truck shop next to me out on this one. The [...] diagrams, well none of the diagrams ever show computer boards. The fleet customer has a few of these so we borrowed one and swapped ECM. I knew it would not work ... Trouble codes: U00.
2009 Dodge Sprinter 3500 3.0L Lacks power on accel VIN: WD0PF4AC69
Well this one is fixed. Mark from New Jersey (A man of few words but they were very profound)hit it right on the head. we replaced the torque converter and vehicle has good power on takeoff. Verification was painfully simple. We did a stall speed test. took 1 ...
1999 Ford Contour SVT 2.5L resistor burned out VIN: 1FAFP68G3X
2005 GMC Sierra 2500 HD SLE 6.6L Egr VIN: 1GTHK23215
Thanks for all the replies, got 9. Finally made another appointment with this customer and the fuel leak was on the fuel pressure sensor and wicking down to the EGR plug. Replaced sensor and all is well. Thanks again.
2003 Lexus GX470 4.7L Steering VIN: JTJBT20X43
we installed steering rack preload spring from tsb st002r-05 helped a lot we are going to try the increased mass steering wheel to see if that helps. THANKS FOR THE HELP william
2007 Lincoln MKZ 3.5L engine timing VIN: 3LNHM26T57
There are marks on the cam gears, and on the phasers because all 3 chains have to line up correctly. I ended up putting all new parts on it : phasers, guides, chains and tensioners. When I was done everything lined up perfectly and after assembly the car ran...
2003 Mitsubishi Montero Sport XLS 3.5L Unknown VIN: JA4LS31R63
Sorry for the delay in closing this request we have been busy and time seems to slip away! Thanks to Sam, Raul and Michael for taking time to reply to this post! 1-2 shift flare was caused by 2 things, first 1-2 shift pressure was too high and second eventua...
2000 Nissan Frontier SE 3.3L MIL Lamp on VIN: 1N6ED27T9Y
Hi guys, Am closing this post as a fix, you guys know what you talking about, Thanks Mike, Timothy, Brent and everybody who reply to this post, it was very helpful, after I decided to go to the voltage drop issue you guys were right on the grounds on the upper... Trouble codes: P0131 (sensor circuit low bank 1 sensor 1), P0134 (sensor circuit no activity bank 1 sensor 1), P0154 (02 sensor circuit no activity bank 2 sensor 1), P0151 (02 sensor circuit low volts bank 2 sensor 1).
2005 Nissan Quest 3.5L Mechanical VIN: 5N1BV28U35
Morning all Well I think this is fixed, Removed old axle and measured it against the new one and there was a big difference in the diameter where the seal rides on. Again defective parts gets us . Steve [...]
2001 Pontiac Aztek 3.4L MIL Lamp on VIN: 3G7DA03E01
Thank you all for your valuable help and information. I checked my rear o2 sensor when purge was disconnected and rear O2 still mimicked front O2. Removed evap canister as many suggested and found it to be saturated with fuel. Replaced canister and reset fuel ... Trouble codes: P0420.
2006 Subaru Legacy 2.5i 2.5L Poor Idle Quality VIN: 4S3BP62626
to review- just after replacing head gaskets and timing belt vehicle would not idle after warming up- per Identifix did idle relearn and got much better after serveral road tests (we had already checked cam timing and cleaned throttle body) when vehicle retu...
1995 Toyota Tacoma SR5 3.4L MIL Lamp on VIN: 4TAVN73K3S
Finally the nightmare is over!! Thanks to William, Denver, Peter-John, Shameel, Michael, Brian, and Dave and IATN. Ended up replacing the Aftermarket made in China junk with 2 dealer item Matsushita knock sensors and re set the timing belt and all is well! Nex... Trouble codes: P0330 (Knock Sensor), P0325 (Knock Sensor).
2000 Toyota Camry CE 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 4T1BG22K3Y
Ok I removed efi and main engine relays also 15 amp Efi fuse. Ran another compression check - 225 across the board. Put all back together and the car started and ran perfect - been for a week now ?? Devine intervention - lots of praying on this one - power of ... Trouble codes: P0106.
2005 Volkswagen Touareg 3.2L front diff bearing VIN: WVGLG77L65
ok after a little searching figured it out axles pop out like c/v shaft /pin does not have to be removed to remove carrier , cannot find procedure because it not published /vw stated that you have to replace entire diff but you can replace bearings and seals /...
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