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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 6, 2007
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
1994 Acura Vigor GS 2.5L SRS,horn VIN: JH4CC2663R
horns not working.SRS light on.have a 4 amp currant draw. cont locate short.Disconected all fuses and realys still have a draw.
1987 Alfa Romeo Spider Graduate 2.0L starter VIN: ZARBA5640H
intermittent no power to starter - starter is good and will crank if jumped - power exiting ignition switch is good - somewhere between ignition switch and starter we've got an open or bad connection - might be a relay - problem is i have no electrical diagram...
1998 BMW 328i 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: WBAAM5338X
Car came in with an 02 sensor code bank 1 and fuel trim bank 1 upon inspection we found the fuel pressure at 55psi due to lack of vacuum at the fuel pressure regulator. In order to correct the vacuum problem we replaced the crankcase breather valve and all hos... Trouble codes: 1188 (Fuel Trim Bank 1), 301 (Missfire cyl 1), 302 (Missfire cyl 2), 303 (Missfire cyl 3)
1989 Cadillac Allante 4.5L No Start VIN: 1G6VR3182K
the car came in to my shop and as a no start put the key in the ignition and go to crank and in the crank position the left ft head lamp comes on and no engine crank let go of the key and on the message board it says remove key from ignition starter disabled r...
1992 Cadillac Eldorado 4.9L starting VIN: 1G6EL13B7N
it has perfect cold start condition . if driven 4 mile, or even less miles is very hard to restart after shatting it off. it pull about 500 amps. new battery, very good shape cables. timing is fine. tried 3 reman and 2 new starters!!!
2003 Cadillac CTS 3.2L Poor Idle Quality VIN: 1G6DM57N43
The car idles rough with the AC compressor on and idles great when the AC compressor is off. Long term fuel trims are 0 on both banks and short term fuel trims fluctuate between -2 and +2. There are no misfires in the solus scan data AC pressures are ok an...
1998 Chevrolet Monte Carlo Z34 3.8L abs VIN: 1GR4YHERIU
Modulator and soelnoid packs were replaced,in order to rectify a noise that occurs during braking above 15 mph,by another tech at sister shop. its been assembled correctly rehoned with tech 2. Sounds like a clicking noise on normal brake application. bfom. tec...
2001 Chevrolet Malibu 3.1L Excessive Emissions, MIL Lamp on VIN: 1G1ND52J21
this is my first post so be patient. this 2001 malibu came in with the ses light on and code p0442. tested vent valve and purge solenoid. replaced both along with the fuel cap. reran evap leak test with tech2 and failed again. i also vacuum tested the charcoal... Trouble codes: P0442
2002 Chevrolet Cavalier 2.2L all gauges VIN: 1G1JC52462
hi this is my sister car i work at a vw dealer now so i have no info and or diagnostic equipment and no wiring diag on hand for gm all gauges inop the fuel gauge needle is sitting on the temp needle and i have no speedo and rpm no fuel and no temp also radio s...
2003 Chevrolet Express 2500 4.8L Stall VIN: 1GCGG25V43
Hello GM techs i have a van here that shows a code PO507. the van idles low when warmed up & stalls out when first started up when cold, i have replaced the throttle body which comes with a iac & tps on it, i have smoked out the intake & see no leaks HELP!!! ... Trouble codes: P0507
1996 Chrysler Town & Country LXi 3.8L Cuts out, Stall, MIL Lamp on VIN: 1C4GP64L8T
hay guys whats up. i got big problems hopeing for big help this is acualy my wifes van and makes everything even worse if mama ant happy nobodys happy. this van on warm days after driveing 20 or more miles will stall like you turned off the key as you coast or...
1997 Dodge Grand Caravan ES 3.8L Stall, Misfire, MIL Lamp on VIN: 1B4GP54L2V
hi everybody. every two weeks or so this van acts up for the customer. runs really bad, missing, bucking, etc. so bad that they are not sure that they can drive it anywhere. but whenever we look at the van it runs fine. we've looked at it several times now and... Trouble codes: P1391 (intermittent loss of cam/crank signal), P0352 (coil 2 primary circuit malfunction), P0140 (downstream o2 stays at center)
1998 Dodge Ram 1500 Laramie 5.9L Oil presure gauge and check gauge system
Truck arrived with check gauge lamp on and oil presure gauge on bottom. Snap On scanner has oil presure PID. Displays voltage and calculated presure. Voltage was just under 5.0 volts and displayed presure was 0 psi. looked at two wire circiut and found 4.95 vo...
2000 Dodge Stratus ES 2.5L not sure VIN: 1B3EJ56H1Y
Hello all. This customer says the charge light comes on for a short time when driving on the interstate for a while. Then it goes off. I have never seen the light on. I have scoped out the alternator and found the volts ok and the amps at 110 amps with the lig...
2001 Dodge Ram 1500 Laramie 5.9L Excessive Emissions, Poor Idle Quality VIN: 1B7HF13Z51
Vehicle came in with two known problems. Check engine light on for small evap leak detected. Properly tested evap system 3 times with smoke disconnecting purge, running engine and closing LDP. No leaks found. Purge and LDP working properly. -Next problem, con...
1991 Ford F-150 Custom 5.8L Cuts out, Misfire
A real head scratcher. Truck was towed in with a complaint of losing power/missing to the point of dying. Nursed it into the shop and yes, it missed bad. Initial inspection showed several burnt off plug wires due to missing heat shields. Did basic Tune up. No ...
1992 Ford F-350 Custom 5.8L firewall flex VIN: 2FDHF37Y4N
The firewall in the area of the brake booster is flexing extremely bad causing this truck to have a spongy brake pedal. I know there is a kit avaliable from Ford to fix this problem, but my local dealer cannot come up with a part number. With all the knowledge...
1995 Ford Crown Victoria LX 4.6L door locks,dome light,keyless entry VIN: 2FALP74W2S
hello Ford techs,have this crown vic that we installed the right front door latch assembly,now customer states that keyless entry inop,also when u lift up the front door handle on both sides the dome light would come on but now its inop as well...we did the re...
1999 Ford F-150 4.6L tcc VIN: 1FTRX18W91
vehicle came in with trans chugging on take off, stalling in reverse and forward engagement of trans, new tcc solenoid, wiring checked out good, no codes,
2000 Ford Focus LX 2.0L engine VIN: 1FAFP34POY
Good day, Ford Techs- I have a head scratcher here. The front part of the #4 piston skirt has broken, making a real loud knocking noise. I do see minor damage on the top of #4 piston with my bore scope, like the piston can travel up far enough with only half o...
2001 Ford Expedition XLT 5.4L Accessories VIN: 1FLBH67HHG
ok ford techs. If all door locks are unlocked,I can lock them with the remote phaser,drivers switch,pass. switch, but cant unlock the pass door or two back doors.But i can lock and unlock the drivers door all day long even with remote phaser...
2002 Ford Taurus LX 3.0L Drivers Window VIN: 1FAFP55232
Hey guys, Got a taurus here that is boggling my mind. I have a drivers window that is inoperative at times. All other windows funtion OK. Evertime so far during diagnosis, The window has mysteriously started working again. I have inspected the wiring for brok...
2001 Hyundai Elantra GLS 2.0L Cuts out, Misfire, MIL Lamp on VIN: KMHDN45D41
Car came in with complaint of ses light on and misfiring at higher rpms. Roadtested car and it ran well at low speeds, but as soon as you stepped down it would fall on its face, misfire ect. SES light would flash on dash. A scan showed a code p0340 CMP sensor ... Trouble codes: P0340, P0302
2002 Jaguar XK8 4.0L Top VIN: SAJJA42CXY
The car came in with leakage from the area where the switch and interior lights are located. Greenish HSMO or what appears to be HSMO) drips down from the module containing the top switches and the interior lights. This module is located below the upper part o...
2001 Jeep Cherokee Classic 4.0L Cuts out, Misfire VIN: 1J4FF58S71
Vehicle has heavy miss fire, #5 cylinder, checked coil pack with new, check spark plug w/new, compression 180psi all cylinders,fuel pressure within spec, when engine starts to miss fire at idle vacuum gauge is fluxuating like valve sticking open, but compressi... Trouble codes: 9305B (5 cylinder missfire)
1999 Mercedes-Benz ML320 3.2L windws,interior light(s) VIN: 4JGAB5XA12
no start,no cranck.when you turn the key on, no light on the dash board.replaced the engine control module,car starts,turn the a/c fan on car died and unable to start.need help.
2002 Mercury Sable LS 3.0L head light VIN: 1MEFM55SX2
comes up with code b1790
1994 Nissan Quest GXE 3.0L overdrive VIN: 4N2DN11W3R
When driving at 60 mph,trans shifts down when tps data moves from 1.34 volts to 1.16 volts.When you go back to 1.34 volts it shifts into overdrive.This very little movement,so trans is shifting in and out of overdrive all the time at cruise.No codes.Tested tps...
1995 Nissan Altima GLE 2.4L MIL Lamp on VIN: 1N4BU31D0S
This vehicle has a repeated p0400 code returning after a while. We have changed the egr valve, control solenois and vecuum valve in three different services. The light keeps returning. Vacuum checked valve and the vehicle stalls. Power and ground controls chec... Trouble codes: P0400
2000 Nissan Sentra SE 2.0L Hesitation VIN: 3N1BB51D8Y
We have this Sentra with a P0171 Code. Looking at other Nissans on IATN looks like 99% of the cause is a bad MAF sensor. We tested it according to All Data and at 2500 rpm we got about 1.35 volts and at 4000 rpm 1.89 volts. Never got above 2.5 volts when revvi... Trouble codes: P0171
2005 Nissan Murano S 3.5L Exhaust VIN: JN8AZ08T55
White wispy smoke billows quite big, but brief, from the exhaust upon cold startup or upon startup after 10 min hot soak. We are thinking coolant is getting into exhaust but coolant level is not going down. Could it be a bad catalyst?
1998 Plymouth Grand Voyager Expresso 3.3L starting VIN: 1P4GP44R5W
does any one have any tips in or similar problems with these types of vehicles, i have replaced the starter and relay, works fine from oct to march, when it get warmer out it acts as if the starter is not getting any power from the battery.
1999 Pontiac Grand Prix GT 3.8L Rack and Pinion VIN: 1G2WP52K7X
Coustomere came in with a no power steering to the left but car would steer fine to the right. so i dissconnected both outer tie rod ends and tried to steer the car in the air and it still was hard to turn left and easy to turn right. We decided to change the ...
2002 Saab 9-3 SE 2.0L Soft top cover VIN: YS3DF78C32
This is a private import car to Israel, as the first generation 9-3 were not imported regularly. The car came with the soft top inoperative, after the owner had tried to force it to close on a box that was too big to haul in the car, was on the rear seat. Afte...
1995 Saturn SL2 1.9L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1G8ZK527XS
This car has been bucking, when decelerating from cruise. Gradually getting worse , hesitating, sometimes no start and when it does start, poor idle quality, sometimes exhibits symptoms of crossed spark plug wires , put scanner on it and watching live datastr...
2000 Saturn LS1 2.2L Hesitation VIN: 1G8JU52F7Y
Ok fellow techs I have a problem child, we have a 2000 Saturn LS1 that has a severe hesitation off idle to 3000 rpm, then it clears up and runs fine. We tested fuel pressure and it was 50psi at idle and above idle, flow tested good. Also tested MAP sensor volt...
2004 Saturn Ion-1 2.2L Valvetrain VIN: 1G8AF52F94
Car was recently at dealer for a #2 injector and diagnosis of valvetrain noise problem. Dealer told customer needed a head job and noted TSB for "porous" head condition. Checked all plugs no water intrusion...car started making bad valvetrain noise after runni...
2001 Subaru Outback Limited 2.5L Hesitation, Surge, Cuts out VIN: 4S3BH68661
hi guys. hope everyone has a good easter. this car has me baffled. the car cuts out, hesitates, and pops whan you push accelerator. not every time but most. ive scoped the cam, crank, tps, map, checked fuel pressure. all good. i ohmed injectors but unsure if t...
1991 Toyota Supra Turbo 3.0L compressor VIN: JT2MA71M2M
I am not getting power to the compressor the biggest problem is that i have very little info on this system it is automatic air i am not getting a ground out of the amplifer to the ac clutch relay (tan wire) there is one wire (purple white) that comes out of t...
1998 Toyota Sienna LE 3.0L hydraulic module VIN: 4T3GF13C7W
Hi techs this toyota has no brake fluid to left rear wheel. Checked master cylinder fluid squirts out of both ports good flow. Hydraulic modulator has four lines coming out one for each wheel and two lines coming in from master cylinder.I have fluid coming out...
2002 Toyota Sequoia SR5 4.7L Vehicle Skid Control VIN: 5TDZT34A92
Help Toyota Techs! Customer complaint is the "TRAC OFF" and "VSC TRAC" lights are illuminated on the dash. Customer stated they noticed the steering felt abnormal just prior to the lights coming on. Found code C1231 (Steering Angle Sensor Malfunction) present ...
1996 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VESA81H5T
vehicle had (possibly) the same issue 2 years ago, our documentation is not specific here. at that time a trans service was performed and the sensors were checked, code was cleared and all was well till about a month ago. at that time customer returned and sai... Trouble codes: P0501
2003 Volkswagen Jetta TDI 1.9L Air Intake Niose VIN: 3VWSP69M83
The car has a " Whooshing" noise on hard acceleration or under load i.e. going up a hill.It sounds like brushes on a street sweeper.

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW 330xi 3.0L airbag VIN: WBAAVS343U
this one is down the road. replies were that the pin #'s for the left rear air bag are 22 and 23. broken plastic tabs on the harness side of the air bag connection can set the code. if replaceing the module, BMW will have to reprogram. on our car the module wa...
2002 BMW 525i 2.5L Lighting VIN: WBADT43482
I installed the LZM and coded it and so far I have not had a negative response from the customer, still keeping my fingers crossed. Thanks to all that responded.
2003 BMW Z4 3.0i 3.0L soft top VIN: 4USBT53403
Thanks for the replies. I was able to get my hands on a factory manual. Brents description is very accurate (thanks). Not too bad once you do it once. Be sure to lay blankets on the rear fenders to protect the paint.
2004 Cadillac CTS 3.6L Electric Windows VIN: 1G6DP56785
Hi everybody, sorry about the delay but the customer collected the car without being repaired, i checked the fuses under the rear seat all are ok, disconnected the battery for 5mins didn't work too, thanks for all the help. Best regards
1972 Chevrolet chevelle 350CID Mechanical VIN: 1G4K53GHTY
ty to all who took time to respond esp jeffrey from mass.the problem turned out to be that the output shaft thrust washer and selective washer got destroyed appears thrust washer was spinning and really baked the three tang selective washer.(black) which i'm s...
1991 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality VIN: 2GCEK19K5M
Thanks for all the help. Sorry I diddn't reply earlier but had computer probs. Well the relearn IAC fixed the problem. Thanks again, easy fix but overlooked. Mike
2001 Chevrolet C3500HD 6.5L No Start VIN: 3GBKC34FX1
The problem was the injection pump, although the module was bad the pump was also bad, in addtion the pump is acutally back out again due to the fact the reman one leaked like crazy
2000 Dodge Dakota 3.9L No Start VIN: 1B7GL22XXY
the fix was a brand new pcm I was afraid to mput a new one because both computer was giving me that p1389 code Trouble codes: P1389 (no asd relay output to pcm).
1992 Ford Explorer Eddie Bauer 4.0L gear box VIN: 1FMDU34X3N
The new pump and box are in and so far so good. Because I can find no other cause for the box to have so many problems, I have to assume that the valve must have been the problem. We will see in the months to come. Thanks for all the input.
1994 Ford Taurus GL 3.0L timing chain VIN: 1FACP52U2P
thanks for everyones help , tried all your suggestions to no avail . told customer to go any further we have to start tearing down engine , he declined . so no real fix thanks again
1998 Ford Contour GL 2.0L No Start, HARD START VIN: 1FALP653XW
car had multiple problems replaced vct solenoid, sproket, timing belt. car was better, performed valve leak down test, removed cylinder head and performed valve job Trouble codes: P1381 (variable cam timing overadvance).
1999 Ford Windstar SE 3.8L Misfire, MIL Lamp on VIN: 2FMZA5247X
Thank you all for the replies. I unplugged the egr and the miss went away. I then pulled the upper intake, sure enough, the egr passages were all plugged except #4. I cleaned the ports and retested. Again thank you. I never would have thought about that one, b... Trouble codes: P0304 (misfire cylinder 4).
2000 Ford Windstar SEL 3.8L MIL Lamp on VIN: 2FMDA5340Y
hello again guys, i have iatn to thank again for this one.quite a few of you said that i needed to replace the valve cover and pressure regulator vacuum line.we had already done that with the plenum reseal i should have made that clear.doorman makes a good k... Trouble codes: P0171, P0174.
2001 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZF17221
Thanks to all that replied. I checked all of the mechanical aspects like fuel pressure and flow to find normal. I did road test the vehicle with my Modus to gragh the o2 sensors to find bank 2 functioning normally and bank 1 slower in response. While idling I ... Trouble codes: P0171.
2002 Ford Ranger Edge 3.0L oil pressure VIN: 1FTYR14VX2
sorry customer didn't return car. says it isn't doing it that often to spend money on it.
1999 GMC Jimmy SL 4.3L batt draw. VIN: 1GMNBGH563
Well kind of fixed it.Got angry from working on the same car for 5 hrs. started pulling on wire loom and draw went away...
1997 Infiniti I30 3.0L MIL Lamp on VIN: QJNGRKI445
Thanks guys I cleaned egr passages. Had to replace the knock sensor too. It ohmed out bad, kept setting code. snaked it in there with a quater inch swivel. now it has a bank 1 sensor 1 code haha. lucky this lady likes me. Thanks again.
1994 Lexus SC400 4.0L power steering VIN: JT8UZ3OC7S
thanks to all that replied the fix was to clean out the screen at the rack the suction hose had already been replaced againthanks to all of you who took time out to help me with this
2000 Mazda Millenia Millennium Edition 2.3L Cuts out, MIL Lamp on VIN: JM1TA2226Y
As is often the case I did not get the exact answer I had hopes for but I did get enough information for my feeble brain to finally get on track and find that we had some of the vacume lines crossed.Once Miles [...] Meneses and Alan each had made ... Trouble codes: 1540 (air bypass valve).
1995 Mercedes-Benz E320 3.2L Hesitation, Surge, Cuts out VIN: WDBEA32EXS
I would like to thank everyone for the help. IATN RULES! Well the fix for this car was complicated. After I replaced the engine harness the car still ran the same. I pulled the ecm out and found someone had drilled a hole in the side to run two wires that had ... Trouble codes: 18 (cam timing selenoid), 104 (fuel safety shut off recognized), 035 (o2s control system rich stop mix too lean), 022 (cc/ea actuator reports limp home mode), 06 (isc), 095 (adj cam timing selenoid y49 open or shorted).
1999 Mercury Sable GS 3.0L No Start, floods out VIN: 1MEFM50U1X
I don't understand how this car did not set any codes, especially a P0340, but the fix was to replace the cam sensor and the syncronizer assy. the bushings were bad in the syncronizer causing the shutter wheel to hit the sensor. I found it by checking the cam ...
2000 Mercury Grand Marquis LS 4.6L Lighting VIN: 2MEFM75W7Y
Well this one is fixed. The problem was a shorted key pad causing the interior lights to come at will. Thanks to Nick [...].
2002 Mercury Sable GS 3.0L Cuts out, Stall VIN: 1MEFM50U72
Thanks to all who replied. Everyone one was on the same page with check for a bad ground or bad connection, we did check and all grounds were tight we checked the main relay for connection or contact problem. after all checks had been done and the relay connec...
1998 Mitsubishi Eclipse GSX 2.0L Excessive Emissions, Cuts out, Misfire, MIL Lamp on VIN: 4A3AL54F5W
Thanks to all who replied. After reading your suggestions I went back myself to look at this vehicle seeing our tech wasn't getting anywhere. First the CEL was on due to a TPS code the TPS tested fine. We had already swapped out the intake manifold and all the...
2001 Mitsubishi Montero XLS 3.5L ABS Module ?? VIN: JA4MW31R11
I have ordered the accumulator as thats where the noise was coming from, Just waiting for the parts to show up
1991 Oldsmobile 98 Regency Elite 3.8L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1GC3W53L8M
Hey guys sorry for the delay in closing this.Thank you to all who took time out of your day to help.I drove this home for a couple of days with not much of a problem.Finally one morning it started randomly dieing at cruising speed.Got to work and hooked the sc...
1994 Pontiac Firebird Formula 5.7L parking brake VIN: 2G2FV22P1R
Well it seems this is one of those that justs bites you,I want to thank Rob and Ronald.I use both of your suggestions,I replaced the calipers again and ratched the parking brake before bleeding.We ran the car on the lift,and it seems the vehicle has a proporti...
1998 Saab 900 S 2.3L door locks
Well, I'm sorry to say this car didn't get fixed. The car came in with three problems. 1st the dash lights would flicker while driving. I found the connector for the dimmer falling off, possibly from someone pulling the radio to install a satelite radio and tu...
1988 Toyota Land Cruiser 4.0L Hesitation VIN: JT3FJ62G7J
you guys were right about the tps, it was not closing to put ecm in bypass, put on new tps and adjusted to specs, truck runs great now i can set the timing properly, sorry it took so long, had to wait a week for tb gasket and for time to get it back in the sho...
1998 Toyota Land Cruiser 4.7L MIL Lamp on VIN: JT3HT05J7W
We replaced the O2 sensors and the light hasn't come back on yet. We gave the car back to the owner and will hope that all stays well. Thanks everybody! Trouble codes: P0171 (bank 1 lean), P0174 (bank 2 lean).
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