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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 15, 2009
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Open Help Requests for All Makes and Models
Help Request Answers
2004 Audi A4 1.8L starting VIN: WAUJC68E24
Hello Audi Techs I would have to repair the wire loom in this car, being damaged due to the electrical systems control unit short, I have to repair the wire loom in different sections by replacing sections of wiring,when I tried to order wire and crimp connect...
1992 Buick Century Custom 3.3L Excessive Emissions VIN: 1G4AH54N9N
hi evry one!i need help with this car, came in failing emission inspection for NOx at 15 mph ,reading 918 ppm . 25 mph 687 ppm. car runs good , no codes , from emission reading looks like its running lean , but with my snop on scanner o2 sensor switching withi...
1999 Chevrolet Blazer 4.3L Poor Idle Quality, Poor Fuel Economy
i have a slight ruff idle and very hard on fuel.on accel the engine is smooth,no hesitation,smooth take off but hard on fuel.i have replaced the upper and lower intake gasket but i had this prob before.i adjusted the can retard to 0 degrees.all tune up items a...
1992 Dodge Ramcharger 5.2L hard start VIN: 3B4GE17Y4N
OK, got a call from another shop asking me to help out on this one. This truck has sat in their shop for about two years. They have had various techs look at it over the months and none have seemed to do any good. Customer hasn't been in a hurry and neither ha...
1997 Ford Expedition XLT 5.4L alternator VIN: 1FMFU18LXV
Gentlemen: Have a 1997 Ford Expedition, with a 5.4 liter engine. Alternator is not charging battery, alternator out put only 7.46 volts. Battery gague shows approximatley 14 volts on dash, low battery light does not come on on dash with engine running. Also, w...
1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMRU17LXX
vehicle came in with p0131 o2 volts low, 171 and 174 lean b1/b2. found b1 sensor unplugged. plugged it in, scanned, found lt trim b1/b2 +20% idle and +5-7% at 2500rpm's. maf read 4.6 KPa at idle. smoked system, found iac and pcv actively leaking. replaced maf,... Trouble codes: P0171, P0174, P0131
2002 Ford Taurus SE 4-Valve 3.0L Misfire, MIL Lamp on VIN: 1FNHP56SX2
This car originally came in several months ago with complaint of no power, rough idle, & Ck engine light on. The car ran fine for me. I changed the plugs and filters & cleared codes (Misfire Codes). When the vehicle came back in for brake work the light was on... Trouble codes: P0304 (p0316-), P0316 (testing and results)
2002 Ford Taurus SE 4-Valve 3.0L door locks VIN: 1FAHP56S12
need to reset key pad opener
2006 Ford Freestar 3.9L shift erratic allspeeds speedo also erratic
van shifts very erratic,speedo will fluctuate from 0 to [...] sitting still,problem seems to surface after a rain.it lasts for about aweek or untill it dries out scanner will not communicate sometimes when it does mph matches what dash says have checked all...
1998 Honda Accord EX 3.0L MIL Lamp on VIN: 1HGCG1652W
I had a code P0401 on this Honda, pulled the upper intake and cleaned the carbon out of the plugged up lower intake & installed sleeve and upgrade EGR Valve, thought it was a no brainer, 2 weeks later, same code...Does anyone have any advise on what direction ... Trouble codes: P0401
2003 Honda Odyssey LX 3.5L Mechanical VIN: 5FNRL18573
The transmission was slow to go into drive or reverse when cold, drove normal after warm up. Now it has died and we found codes P0740 & P0700 & 40-01. I believe the transmission is worn out as is common on these Honda automatics. We are recommending a Honda re...
2001 Land Rover Discovery Series II SE 4.0L MIL Lamp on VIN: SALTL15491
This Discovery came in running poorly and MIL on. Codes were for O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) & (Bank 2 Sensor 1), O2 Sensor Heater Circuit (Bank 1 Sensor 1) &(Bank 2 Sensor 1), and P0300 & P0308. I found that the harness plugs for ... Trouble codes: P0135 (O2 Sensor Heater Circuit Bank 1 Sensor 1), P0155 (O2 Sensor Heater Circuit Bank 2 Sensor 1)
1991 Mercedes-Benz 500SL 5.0L Roof VIN: WDB1290662
Hallo there Merc experts!. This AMG 500Sl's roof does not work at all. We read it out(flascodes) and got codes:18,19,20,21,22,28,29. We tried to clear them, but they came straight back! To me it seems that there are "too many" codes. I mean it is hard to belie...
1994 Pontiac Sunbird LE 2.0L Cuts out, Stall, Misfire VIN: 1G2JB54H2R
94 sunbird after running for 10 min will stumble if accel hard. driving down the road bogs out and will stall. had test parts and tried as last resort. replaced ecm tps map and egr valve no change ran on injector clean bottle and fresh fuel no change. scan too...
1990 Toyota 4Runner SR5 3.0L cruise control VIN: JT3VN39WXL
cruise control doesnt work, blinks 5 times and records code 12, found powers and grounds okay. clutch switch, brake switch, e-brake switch are working as designed. found no test for the ecu and all the post i have found say that it is rare to replace the cruis...
1999 Toyota Tacoma SR5 3.4L No Start, Poor Idle Quality, MIL Lamp on VIN: 4TAWN72N7X
Hello to all. Need a little help to step in the right direction. I have this tacoma that im working on for a friend on the side. He originally called me with a running rough complaint and a check engine light on for an intake air temp sensor. When he went to s...
2006 Volkswagen Passat 2.0T 2.0L Electronic VIN: WVWEK73CX6
Hi Group, we got a 2006 VW Passat, 2.0T. ac/heater, blower fan not working at all, no matter what speed not working, I pull wiring diagram from All DATA , look so confusing compare to Mercedes or BMW. don't know how this system work. I checked all fuses. OK. d...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Chevrolet S10 4.3L Cuts out VIN: 1GCDT19X5V
Thanks to the many people that have shared their expertise, the fuel pump was indeed weak and causing the problem, put a new fuel pump in, pressure stayed above 60psi, ran great, thanks again to all those who helped, Brian.
1999 Chevrolet C3500 6.5L Bosch Hydro-Boost brake assembly VIN: 1GBJC34F6X
well thank to all who sent a diagram. i also found a tech site that told me to seperate the houseing and i didn't need to remove the whole unit from the truck i only need to replace a few seals and i did just that , replaced the piston seal, dump valve, and t...
2007 Dodge Nitro R/T 4.0L wipers VIN: 1D8GU28K07
1999 Ford Expedition Eddie Bauer 5.4L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMPU18L5X
most of helpers had it nailed. trigger wire for #5 went south somewhere behind the intake area. was catching a ground, thus overheating coil. I put original pcm (WHICH FORD SEVICE DEPT SAID WAS BAD AND NEEDED REPL. FOR$1000) back in, bootlegged a new trigger w... Trouble codes: P0305.
2003 Ford F-350 Super Duty Lariat 6.0L Excessive Emissions, BLUE SMOKE LOW RPM VIN: 1FTSW31P23
Thanks again to all who replied, it is great network. We cleaned the EGR valve, it was heavily coked up. Vehicle had two bad injectors on the right bank. Removed turbo charger, disassembled and cleaned, we recommended to customer to have all injectors chang...
1995 Geo Prizm LSi 1.6L Hesitation, Stall VIN: 1Y1SK5264S
Thank you to all that replied the vehicle fix was replacing the spark plugs, and making sure the kv voltage was adequate under throttle opening. Finished it up with wire set and cap and rotor.
2006 Honda Civic DX 1.8L dash lite VIN: 2HGFG11876
well,fixed car but had to find scanner to communicate with vechicle,couldn't use dash lite to get codes.pretensioner &crash sensor bad
1996 Land Rover Range Rover HSE 4.6L MIL Lamp on, gearbox fault VIN: SALPE1440T
Wanted to make sure the truck is fixed - hasn't returned, so I guess I fixed it! LR diagnostics are terrible regarding the CKP giving the information for the "torque signal", which must be a calculated value. Turned out that the GEMS management system used a... Trouble codes: P1701, P1708 (Transfer case computer link signal permanently at ground), P1775, P1608 (Engine torque signal really), P1703 (transfer box link electrical fault. Not currently present.).
1996 Mercedes-Benz SL500 5.0L valve train VIN: WDBFA67FXT
Received 6 replies-thank guys-mostly concerning broken valves. I bore scoped the cylinders and found heavy scoring in no. 1. At this time I'm leaning towards a broken piston causing the noise. I did check the compression before I replced the timing chain so I ...
1996 Oldsmobile 88 Royale LS 3.8L lifter noise VIN: 1G3HN52K1T
Well, this one is fixed.I want to thank everyone that offered assistance. The replies were very helpful, but a silver bullet did not exist. I did learn something on this one. Upon disassembly I found a roller broken on #5 exhaust lifter. This part rides on the...
2001 Pontiac Montana 3.4L Cooling Systems VIN: 1GMDU03E61
Thanks for everybody that offered help. The Van is now fixed. First off I still stand behind what I said about it not being the intake gasket. The coolant passage and the intake passage ports are separated by about 1/2 where the gasket is, therefore I belie...
2006 Toyota RAV4 2.4L no start at times VIN: JTMZD31V66
It's been 3 wks since we gave it back to the customer, so we'll close with a fix. When it would't start, we had no injector pulse, or spark! We spent much time tracing a 3.5v feed, to the "non power side"(Term #5) of the Ign2 Relay. That terminal should only...
1996 Volkswagen Jetta GL 2.0L Poor Idle Quality, Misfire VIN: 3VWRA81HXT
I apologize for the late close, but this had been a frustrating and ongoing issue as we've had to return the car to the customer numerous times and schedule to get it back. A leakdown test revealed no faults in the engine, with under 15% on all cylinders. I h... Trouble codes: P0302 (cyl 2 miss), P0303 (cyl 3 miss), P0300 (random miss).
2001 Volkswagen Beetle GLS 1.8L poor acceleration VIN: 3VWCD21C91
I checked the O2 sensor wiring for damage and checked brake switch operation as suggested.I looked for connector and wiring problems.Everything checked OK so far.The throttle body looked like it had been cleaned recently.I borrowed a Snap-on scanner with Euro... Trouble codes: P0221.
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