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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 8, 2004
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
1998 Acura RL SE 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: JH4KA9680W
vehicle acted up(misfired)once in 40 miles, on start up for a minute, after 1 hour hot soak i came in my eye Trouble codes: P1201 (1 misfire), P1203 (3 misfire), P1204 (4 misfire), P1205 (5 misfire), P1206 (6 misfire), P0300 (random misfire)
1996 Audi A4 2.8L ABS module VIN: WAUEA88D4T
ABS pulses at every stop. I found new left rear pads with signs of overheating; so, assuming that the ABS module was seeing impending lockup there and was pulsing in response, I lubed all the slides, retracted the caliper piston fully (did not bind), replaced ...
1999 BMW 740i 4.4L Engine VIN: WBAGG8339X
BMW Techs, I have a clicking noise coming from the lower end of this motor all the time. It increase in frequency with rpm. I have unbolted the torque convertor to isolate it to the engine area. It sounds if someone is pulling a stick across a pickett fence. ...
1994 Cadillac DeVille 4.9L heat
have a deville puts out cold air at all times,even if you have temp dail at 90 degress.will not switch to heat,it does switch from vent to floor as you move dial.
1985 Chevrolet Corvette 5.7L overdrive operation VIN: 1GYY0782F5
Hi guys, This one keeps kicking me. Had problems with the clutch, and IATN came thru. Hope someone can help with this. As mentioned, we replaced the entire clutch system for spongy pedal and burnt clutch. That problem has been solved ,but now we have no over...
1991 Chevrolet C1500 Cheyenne 5.0L Power steering pump VIN: 2GCEC19HXM
Have replaced the power steering pump twice before. Now it is in the shop with another one broke. Everything looks good on it. Has anyone had this problem before?
2000 Chevrolet Tahoe LT 5.3L No Start, Hesitation, Stall VIN: 1GNEK13T5Y
Good after Techs, Complaint on this Tahoe is intermittent no start cold or hot soak. Sometimes while it's cranking and decides to run, it will stall. Sometimes the vehicle will not accellerate. None of these conditions will not last more than 10 or 15 seconds ...
2001 Chrysler PT Cruiser 2.4L cruise control VIN: 3C8FY4BB81
This is a long time customer. She is complaining of no cruise control. I did the tests on the istrument panel as stated in mitchell, no problem found. I replaced the brake switch but did not fix. Any ideas would be greatful. Thanks Don
1998 Dodge Grand Caravan ES 3.8L crankshaft VIN: 1B4GP54L8W
Hello Group . Thisis a strange one . Customer states that he accelerated to merge with trafic from side street and motor just died . Ouponispection we found a seized motor , flywheel ground down to nothing from him trying to crank it. Sinse this is an extended...
1988 Ford E-350 Econoline Club Wagon Custom 5.8L Poor Idle Quality, Misfire VIN: 1FTJE34HXJ
customer dropped off for no power and misfire road tested noticed no power and missing at high rpm [above 3000 rpm] got into shop and saw coil corroded and plug wires bad replaced both items.road test same thing. ck for codes recieved code for tps out of range...
1996 Ford F-150 Eddie Bauer 4.9L MIL Lamp on VIN: 1FTEF14Y5T
truck keeps setting code after second test drive. Truck runs good and reading o2s on the data stream it looks like both the sensors are working. Any ideas for testing the heater circuit. Thanks in advance Trouble codes: P0141
1999 Ford F-150 XL 4.2L Hesitation VIN: 1FTZF1721X
alright, hello everybody. i hope someone out there knows something about this, we have gone through everything on this truck and im coming up blank. under a load in any gear or in neutral on a hard throttle snap she breaks up almost like a rev limiter. checked...
1999 Ford F-150 XL 4.2L Hesitation VIN: 1FTZF1721X
sorry everyone somehow my original post got closed, musta clicked the wrong ting. i just wanted to add the pcm was reprogrammed in 2000, program # [...], maybe this will help. and again this thing really bucks & jerks hard under load or in idle on quick...
2001 Ford F-150 King Ranch 5.4L Poor Idle Quality, Misfire VIN: 1FTRW08L71
the truck originally came in for a misfire. it had a po304 misfire code. we replaced all the plugs and a new coil on #4 cylinder. it corrected the problem for a month. the customer then brought it back for a misfire situation. it has no codes stored but we fee...
2001 Ford F-150 King Ranch 5.4L No Start VIN: 1FTRW08L51
Checked fuel pump and the fuel pump will not come on and it is not getting any fire to the injectors. Need to know how to clear theft codes. I have cleared the theft codes and they continue to come back. Trouble codes: P1260, 1639 (definition not available)
1991 Honda Accord EX 2.2L oil light VIN: JHMCB7666M
this vehicle came in for oil light came on and was blinking. he checked level added 3 quarts. we checked it for leaks replaced oil pan gasket and valve cover gasket. no more leaks. customer drove and return 20 miles said light came on. then i drove 15 miles no...
1992 Honda Prelude S 2.2L Instrument panel VIN: JHMBA8248N
Hi all, have a NON fluorescent gauge cluster here, parking lights all work on PARK, but no gauge lights. I checked the fix database, but no one's seen this before. See my tests, but I did subst. known-good combo switch, so it's not the switch. Same result. Al...
1999 Honda Prelude 2.2L Stall, MIL Lamp on VIN: JHMBB614XX
Complaint is dying going down the road intermittantly, vehicle has a manual trans and usually starts right back up before he has to stop. Once in awhile he has to pull over and crank the engine to start it. Been happening for two weeks. We pulled 8 codes most ... Trouble codes: P1607, P1632, P0107, P1361, P1359, P1382
1997 Infiniti J30 3.0L MIL Lamp on VIN: JNKAY21D2V
Hey guys, Hoping someone can help me out. We have a 1997 Infiniti J30 that we can't seem to get rid of. It originally came in with a rough idle and no engine light. We diagnosed a faulty iac/aac valve and replaced it with new parts. The car ran great and we a... Trouble codes: P0505 (idle control system)
2003 Infiniti g35 3.5L fluid amt on drain and fill VIN: JNKCV51EX3
hi all need to know about how much atf fluid to put back in this G35. vehicle is not equiped with a dip stick. need to get a (sst) to check that no one has. getting conflicting amounts from dealers. this is for a drain and fill service. thanks
1997 Jaguar XJ6 L 4.0L MIL Lamp on VIN: SAJHX624XV
Vehicle came in with multiple ecm codes. We sucessfully repaired codes for the knock sensor and the iat sensor. The vehicle has come back twice with a code 1188, which refers to the ft. o2 sensor heaters. We replaced both ft. o2's but the code comes back. I've... Trouble codes: 1188 (Both ft. o2sensors open or shorted to ground)
1992 Jeep Cherokee Laredo 4.0L master cylinder VIN: 1J4FJ58S0N
hello everybody.this truck is something, it drives me nuts. rear brakes are working only about 20%. took it for emissions but they can't run a dyno test because truck does't stop. brake pedal is normal. when applying brakes wheel cylinders expend, brakes are p...
1993 Jeep Grand Cherokee Limited 4.0L Poor Idle Quality, Misfire VIN: 1J4GZ7851P
note,also changed asd relay.Voltage drop at pcm was less than .2 mv. on ground wire.B AT PCM WAS good at time of testing. REPLACED crank speed sensor , THANX , APPRECIATE YOUR TIME.
1995 Land Rover Discovery 3.9L engine VIN: SALJN1286S
Hello, We have a 95 Discovery that the lifters become noisy after about 5 minutes of warm up. The oil pressure is 40psi cold and 30psi warm The customer replaced the rocker arms and shafts himself and the noise was still there.We have replaced the cam and lif...
1996 Land Rover Discovery SD 4.0L MIL Lamp on VIN: SALJY1242T
HELLO FELLOW LAND ROVER TECHS, INHERITED A DISCOVERY WITH A MIL LIGHT. NO DRIVABILITY COMPLAINTS, Missfire codes set within 5 miles of driving with at least two trips, vehicle runs perfectly (no missfires), hot or cold, engine vacuum is rock steady, o2 sensors... Trouble codes: P1313 (cat damage missfire bank a), P1314 (cat damage missfire bank b)
1993 Mercedes-Benz 300SD 3.4L door locks VIN: WDBGB34E8P
The central locking module (mb part # [...]) does not operate the door locks. I have opened the unit found the pneumatic pump stuck and repaired the pump. The problem seems to be that the sticking of the pump caused a problem in the circuit board. What ...
1998 Mercedes-Benz E300 3.0L MIL Lamp on VIN: WDBJF25F5W
This car came in due to "check engine" warning lamp. Tried to scan with new Launch x-431 scanner but scanner does not have diesel engine capability as far as we can tell. Scanned with Snap-On brick under OBD-II generic and it pulls a P0380 code but it is undef... Trouble codes: P0380 (undocumented code/undefined)
1991 Mitsubishi Montero 3.0L MIL Lamp on VIN: JA4GJ31S4M
At this point I have to ask the Mitsu experts…. This vehicle starts and runs fine and the only trouble is the MIL lamp. MIL is on code 42, for MPI relay. I tested the relay per MOD and it failed, replaced relay and it’s still broke. Pulled new relay and it too... Trouble codes: 42 (MPI Relay fault)
1999 Oldsmobile Silhouette GL 3.4L Keyless entry FOB VIN: 1GHDX03E5W
Customer brought vehicle in for service and wanted to get another keyless entry FOB for an extra set of keys. Bought a new FOB from GM and tried to program per [...] and Alldata. After removong BCM PRGRM fuse and turning the key to the ACC position the sec...
1992 Pontiac Bonneville SE 3.8L gauges,displays VIN: 1G2HZ52L8N
This vehicle came in with the compass and the drivers information display blank. We ordered a reman instrument cluster installed it and sent the car on its way. Approximately two months later the car came in with the displays and gauges inoperative. The tach a...
1997 Pontiac Sunfire SE 2.2L Excessive Emissions, MIL Lamp on, GAS SMELL VIN: 1G2JB5240V
this car has a strong gas odor some times i have tested the system with my evap smoke/pressure tester and the only leak i get is at the vent vsv. if i command it off the leak goes away alldata says that the vent vsv is normaly open. is this correct ? i cant se... Trouble codes: P0440 (evap system leak)
1995 Porsche 911 Carrera 3.6L Top Module VIN: WP0CA2991S
I am looking for the location of the convertible top control module. Alldata tells me it's behind the passenger's footrest. this car doesn't have a passenger's footrest board. I have replaced the left top lock motor because the gears were stripped. The top sti...
1999 Subaru Forester 2.5L Hesitation, Surge VIN: 1FLSF6556X
1995 Toyota Camry DX 2.2L electric window, door locks VIN: 1254879638
no power windows, no locks all fuses good atleast the ones i can see/ also no blower motor, [no voltage at blower fuse 10 amp/ no AC clutch engagement, , thanks to anyone who has had the problem before and can help, paul [...]
1998 Toyota Sienna LE 3.0L Misfire VIN: 4T3ZF13COW
Hello All: We have this vehicle in the shop that was here in May/04 for poor idle and acceleration.At that time we checked for a tune-up which appeared original.We went ahead and performed the tune-up,found an ignition coil to be bad and replaced it as well, ...
2001 Volvo V70 X/C 2.4L Stall VIN: YV1SZ58D01
Hello,I could use a little advice on this Volvo wagon.It came in for an intermittent stalling complaint and of course I cannot reproduce the problem.Checked for codes and found generic code 335B which translates to Volvo code ECM 3100 CKP SENSOR.I have absolut... Trouble codes: 3100 (ckp sensor)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 Audi A4 1.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: WAVCB88DXV
Thank you for your responses. I was able to use the snap-on scanner solus with the euro update to run the adaptation on the vehicle. In the throttle valve control module, the gear was broken on one of the wheels and was reading an open circuit. I became scepti... Trouble codes: 1545 (Throttle position sensor problem).
2002 Audi A4 1.8L Stall VIN: WAULC68E02
Ok, first this car has 2 sending units that average the fuel levels to the dash gauge. The right tank pump worked great for 3 days @ idle in the shop while we were covered up with other work. Pressure and wave form and amperage stayed steady and within spec, a...
2002 Buick Century Custom 3.1L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2G4WS52J22
Well I appreciate the 7 replies I recieved but none guessed the fix. After a couple hours of guesswork myself I pushed, pulled, wiggled & twisted the PCM & uppper engine harness and the engine died. This had not happened before, nor could I get problem to act ... Trouble codes: P0336 (CKP circuit performance).
1989 Cadillac Fleetwood 4.5L windshield wipers VIN: 1G6CB5154K
none of the three replies were any help i finally caught an intermitent problem in the wiper switch after the switch was replaced the other problem with the int wiper module was very obvious
1992 Cadillac Allante 4.5L Excessive Emissions VIN: 1G6VS3387N
Thanks for your replies after all the previous test listed (map, tps o2 fuel pressure ECT) we were left with 2 options. 1 was some sort of computer problem o 2 an injector problem that was not showing up during all our fuel system test ( fuel system held press...
1994 Cadillac Fleetwood 5.7L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GDW52PXRR
Thanks for the help! I found the vacuum vent harness filter to distributor plugged. Replaced vacuum harness and replaced distributor so far so good. Trouble codes: 36 (Opti-spark high resolution pulse).
1989 Chevrolet Camaro Iroc-Z 5.0L MIL Lamp on VIN: 1G1FP21E2K
thanks for the help .iatn came through today.sherman and greg had the right idea.check for other sensors and relays to pull down system.the problem was the tcc solenoid shorted thanks for the help.some times you cant see the forest for the trees.thanks again Trouble codes: 32 (egr).
1994 Chevrolet Camaro 3.4L Security warning lamp VIN: 2G1FP22S5R
On first place thanks a lot to the fellow techs whom replied , they all hit the target, I connected my Multimeter to the wires coming from the ignition lock cylinder and found and open circuit, after removing the lock cylinder i noticed that the wire that has ...
1995 Chevrolet Lumina 3.1L Poor Idle Quality VIN: 2GLWN52M4S
Well it has been over a week since we last seen this car and all seems ok. We never did get to act up when we had car but from all the great replies suggesting the tps[which we did check with lab scope]we went ahead and replaced the part. Want thank all who re...
1997 Chevrolet C2500 5.7L gauges(fuel, charge,oil, temp.,odometer and tacho VIN: 1GCEC34K3V
Hello Everyone: Sorry if i don´t write you earlier, but i have to import the ignition switch. Today i finished this truck, i changed every ground terminal and clean the surfaces where they're install, changed the ignition switch and also changed the turn light...
1995 Chrysler Cirrus LX 2.5L No Start VIN: 1C3EJ56H1S
this is a great help. The concencius was the Dist. I replaced with a NAPA dist. It came back with same problem, replaced NAPA dist with same we will see if it was a defective Dist. Keeping our fingers crossed.
1986 Dodge Lancer 2.5L Cuts out, Stall VIN: 1B3BX48KXG
The final fix for this vehicle wasn't completely clear but I replaced the throttle body unit with a wrecking yard unit and it seems fine now. I did try a complete distributor, cleaning harness at battery and all connections with no change. The throttle body ca...
1998 Dodge Ram 1500 Laramie 5.9L No Start VIN: 1B7HF16Z4V
Well,, This one has done it. It has given me an ulcer, migrain, and made me question my abilities. But, screw it. Sometimes vehicles arent mean to be fixed. I have tried all recommendations and even made up a few. Ive networked with many technicians on this pr...
1988 Ford Bronco Custom 5.0L Excessive Emissions, Poor Fuel Economy VIN: 1FMEU15N8J
Sorry this vehicle took so long to post, the customer picked up the vehicle because they were in the middle of moving and just brought it back today. We rounded up a breakout box while we were waiting for the vehicle to return. We connected the breakout box an... Trouble codes: 44 (Thermactor AIR system not working).
1997 Ford F-350 XL 7.3L No Start VIN: 1FTHF36F7V
Well guys, I want to thank all who replied, I spoke to tech at a local Ford dealer who just works on diesals, I told him what i had done, He told me to start the truck & let it run outside all day, he said if any kind of air is trapped it will cause this.well ...
1998 Ford Explorer Sport 4.0L Cruise control VIN: 1FMYU22X4W
Its fixed I was leaning towards the PSOM in the speedo head. Thanks for the responses they were helpful in my diag process. I installed a used cluster and shipped vehicle with cruise operating fine and no driveability concerns.
1998 Ford Explorer XL 4.0L Harsh up and down shifts VIN: 1FMZU34X2W
iATN, you are the best! I did exactly what the four responses recommended, and replaced the EPC solenoid. The transmission shifts great! You guys fixed this vehicle, not me. Thanks again.
1999 Ford Windstar LX 3.8L fuses blowing VIN: 2FMDA5143X
The Windstar is back in its owner's hands - we'll see how it goes this weekend... After tearing apart MOST of the interior to manually trace wires we discovered THREE things. One - [...] was right, the wires for the rear lites were chafed and smashed by...
1999 Ford Explorer XL 4.0L Suspension VIN: 1FMZU24EXU
hi guys sorry for the delay my computer is up the fix was lube the spline in the drive shaft but there is a twist the lubing of the drive shaft is a temp fix for this problem i was waiting for answer from customer he came back and said what we did last time fi...
2000 Ford Expedition Eddie Bauer 5.4L transfer case VIN: 1FMFU18L6Y
Shortly after posting this help request, I discovered that the tires were different brands, upon measuring them I discovered they were a full inch taller in the front. All the replies I received were telling me to look into this. Apparently this is a problem a...
2001 Ford Crown Victoria 4.6L rear axles VIN: 2FAFP71W11
axles are out and back in. thanks for all the replies, especially all you guys that said to back out or remove abs sensors. went in this a.m. and looked at sensors and kicked myself-how could I not have seen that?? 50 year old eyes I guess. removed both sensor...
1999 Geo Metro LSI 1.3L 3-4 Shift VIN: 2C1MR2222X
Just wanted to say thanks for the help.After Larry [...] told me where the diagnotics were in alldata,under 98,turns out to be internal tranz problem.We dont do tranz rebuilds here so checking on jasper unit. I should have done a little more investigation b...
1994 GMC Safari SLE 4.3L start VIN: 1GKEL19W8R
thanks to all the replied, very much apprecitated ended up replacing the fuel pressure line inside the intake plenum, leaking alot. thaks again
1990 Jeep Cherokee Limited 4.0L No Start VIN: 1J4FJ78L7L
I once again removed the trans and replaced the flex-plate with a used one from the salvage yard. Now my crank signal is perfect and the vehicle starts and runs. I measured the two aftermarket plates and the spacing between the large openings was differant on ...
2000 Jeep Cherokee Sport 4.0L No Start, Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
fixed this car. definetly was the cam sensor. according to the scan tool the cam and crank sync was ok. but when i looked at the base like everyone suggested it did move. i repositoned it and it started and ran so i replaced the cam sensor and oil pump drive. ... Trouble codes: 351 (coil 1 primary circuit problem), 352 (coil2 primary circuit problem), 353 (coil3 primary circuit problem).
1995 Lincoln Town Car 4.6L ride control VIN: WOSY631008
thanks to all who replied. john from florida seemed to have the quickest and easiest fix for this one. just clipped the dkgrn/ltgrn wire from module to cluster and light stayed off. thanks again, hope ya'all have a good day.
1998 Mazda 626 DX 2.0L Mechanical VIN: 1YVGF22C2W
Thanks for the replies. They all pretty well said that it needs rings. Sold a ring job and replaced the rings and problem has been fixed Thanks again for your replies.
1984 Mercedes-Benz 380SE 3.8L climate control VIN: WDB1260321
Thanks to all who replied to my request.I have been over this vehicle and after removing and inspecting the mono valve given my diagnosis as a bad temp control unit. I did recieve a wiring diagram from Rolando [...] the color codes and pins still didnt jive? I w...
1987 Mercedes-Benz 300D 3.0L compressor VIN: WDBEB33D3H
A big thanks to David Poole from texas who phoned me and walked me thru some diagnostics. Seems that the pin numbers that alldata had me checking for engine speed input to the Klima were the wrong pins. A complete testing seems to indicate that the Klima is pr...
1997 Mercedes-Benz SL500 5.0L intermittent wipers VIN: WDBFA67F9V
well,the customer finally came back and was able to leave the car.sorry for the late post.I want to thank the 4 members that took the time to respond to my request.a few members thought that it may be the module in the fuse box so I replaced it and it still di...
1992 Mitsubishi 3000GT 3.0L Excessive Emissions, Misfire VIN: JA3BM64J7P
Ok guys thanks for the help, we found what was causing this by mistake. we had pretty much ruled out sensor problems and were trying to determine if this might be a timing belt issue. It was when we grounded check terminal the ecu retarted timing to base and m...
2001 Mitsubishi Montero Sport LS 3.0L steering column VIN: JA4LS21H11
hi thanks to Ty,Michael and Mark for their replies,it is indeed the lower steering shaft rattling,Mark suggested lubing the splines and it made a definite difference.Now im waiting for the cust to decide if its worth 300 nanner's to replace it.There is a mitsu...
1994 Nissan D21 XE 2.4L Hesitation, Surge, Cuts out VIN: 1N6SD16Y0R
Thanks for the replies. The most helpful was Jon from Colorado. He suggested testing in mode V which gave us a crank sensor code. The crank sensor is part of the distributor. Upon further inspection of the distributor, as we unplugged it from the main harness,...
1997 Nissan Pickup XE 2.4L Poor Fuel Economy
thanks to all---sorry it took so long to post a close i,ve had computer problems---i chacked all the replies and most was toward a temp problem but i had a temp reading of 180 and all other readings looked normal---will be going to dealer before long and i wil...
1997 Oldsmobile Achieva S 2.4L vtd passlock 1 VIN: 1G3NL52T0V
This car is still waiting on the cluster to be repaired properly. It was sent to a dealer (AutoNations) who I came to find out did not use an approved repair facility. It has been three weeks now. The time to close this post is up so I will try to update later...
1996 Pontiac Grand Prix SE 3.1L Misfire, MIL Lamp on VIN: 1G2WJ12M4T
First, let me say thank you to all that took the time to reply. We started by eliminating the easier to access items first; removed & inspected egr valve, and verified proper operation using the MT2500 scanner. Switched coil packs, cylinder 5 still misfiring. ... Trouble codes: P0305 (CYLINDER 5 misfire).
1999 Saab 9-5 2.3L 3-2 shift VIN: Y5SED55E8X
Thank you to everyone that took the time to reply. We are waiting for the customer to return at wich time we will change the trans oil & see what happens. I will update this post whith the results.
2001 Subaru Outback VDC 3.0L MIL Lamp on VIN: 4S3BH89661
when checking the grounds we cleaned and tightend all of them, none of them looked bad but the car has been out of the shop for 15 days now and today the customer reported that the light as of now has not come back on. if this status changes we will report it.... Trouble codes: P0464, P0183.
1999 Suzuki Grand Vitara JS 2.5L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: J53TE162V4
Kostarelos from Greece, said he had a similar problem that turned out to be the ECU. We checked the ECU and found no problem, but when the car would die the ECU was be extreamly hot. In Houston, Autocomp will let us use a ECU for $30 and if it fixes the proble... Trouble codes: P0340 (Cam Sensor Code).
1990 Volkswagen Jetta 1.8L No Start VIN: WVW81H5TM0
Thank you very much to everyone who replied. You gave me the will to do what I knew I needed to do- replace the ECM. Problem solved. IATN is the best!!!
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