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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 27, 2004
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Open Help Requests for All Makes and Models
Help Request Answers
1998 Acura RL 3.5L inst. panel VIN: JH4KA966XW
we have this acura that we are having trouble with the instr. cluster to shut off. Even with the key removed the light for the cluster stays on. At time the main relay clicks on and off when it does this the light flash but if I unplug it they stay on. Can any...
1998 Audi A4 2.8L heat VIN: WAUCB28D4W
Customer states no heat from vents ,and she is right. Everything checks Ok now , but this thing still doesnt put out any heat. If anyone has seen this before or has any other ideas that have not been tried let me know please. Thanks, Kevin
2000 BMW 528i 2.8L Stall, MIL Lamp on VIN: WBADM6343Y
We have a 2000 BMW 528I with a code PO340. By diag/testing cam postion sensor test bad. Replace with a new redesigned BMW sensor. Vehicle ran great for a few days and came back in with same problem and same code. have very limited diag thru alldate on this. Ca... Trouble codes: P0340
1993 Buick Regal Custom 3.8L Poor Idle Quality, Surge VIN: 2G4WB54L2P
This Buick will intermittantly idle poorly. It has a "rolling" idle or it may be described as a surge at idle. Sometimes it will do it just as the car is started, or it may not occur for 50 miles of driving. We have been chasing it for almost a year on and off...
1993 Buick Century Special 3.3L Hesitation VIN: 3G4AG54N1P
running out of ideas on this one,any help would be appreciated.hesitation on acceleration all the time.if unplug the maf sensor problem does not occur.other than the hesitation this vehicle runs great,pasted state emissons testing and no ses light on when prob...
1998 Buick Park Avenue 3.8L vibration VIN: 1G4CU5211X
hello all. thanks in advance. i changed the belts on this car, the valve cover gaskets and the spark plugs. when i resstarted the car it had a vibration. I checked the plugs, firing order. all ok. car accelerates ok,no misfires, but it vibrates at about 900 rp...
1994 Cadillac Seville SLS 4.6L reverse VIN: 1G6KS52Y3R
The car has no reverse. We've replaced the selector switch. With the new selector switch in place and the shift cable unhooked we can play with the shift lever at the transmission and get reverse. It will stay in reverse only as long as the lever is held in po...
1985 Chevrolet Blazer K10 6.2L all gears
This truck is a friend of mine's and I overhauled the trans last winter for burnt low/rev clutches. All was well until a couple days ago when after a 2-3 upshift it just quit driving...It feels like there is load on the engine when in gear, but only slight for...
1999 Chevrolet S10 2.2L Misfire VIN: 1GCCS1443X
We have been over everything on this one, it has a miss we can get consistantly under light load, app 3,000 rpm, 4th gear. It can be felt other times but is most apparent then. Counters on TechII show #1 worst. We have tested spark, one coil seemed weak-replac... Trouble codes: P0300 (Random cylinder misfire)
2002 Chrysler 300M 3.5L No Start VIN: 2C3AE66G62
Hi, Chrysler techs, This car blows the S fuse which feeds the IGN coils. Coils all ohm @1 , Same as a known good car . If I disconnect PCM the short goes away. I'm thinking bad PCM, am I missing somthing?
1992 Dodge B250 5.2L Surge, Cuts out VIN: 2B7HB21Y1N
problem at 70 to80 mph seems like ing or inj shuting down seedometer jumps frome 20 to 80 mph ok at lower speeds and hills Trouble codes: 37 (ptu tcc selenoid ckt open or sorted), 45 (overdrive selenoid not switching), 33 (ac clutch relay ckt not switching)
1996 Dodge Caravan 2.4L ecm VIN: 2B4FP25B9T
Recently acquired a DRBIII but not up to all the points of using it. The manual with the scanner is not much help. Just finished installing a reman ECM in this van and would like to find out how to program vin and mileage into it. Any help would be greatly app...
1997 Dodge Ram 2500 5.9L Cuts out, Stall VIN: 1B6KC26Z1V
happy holidays everyone, this truck drove in with a knock.i rebuilt the engine.the engine starts and runs fine until you put it in reverse.it dies.it will restart with no problem. it will drive forward without a problem.at first i was getting a p1398 code for ... Trouble codes: P1398 (asd/loss of cmp/ckp signal)
1994 Ford Mustang 3.8L Misfire VIN: 1FALP4043R
edis ign. no turbo or sc. skips on 3 and 4 cyls which are companion cyls. no primary trigger signal to coil for 3 and 4. tried new coil and module. crank waveform good. pip and spout ok, even disconnected spout. a 95 engine was used but the correct coil and mo...
1995 Ford Explorer XL 4.0L transfercase VIN: 1FMDU34A6S
This SUV has no 4wd operation.Owner bought new and has not used 4wd much at all.The 4wd switch seem to be working properly. It will go from 2wd to 4wd(high) and if I stop put in neut. foot on brake switch to 4wd (low) I can hear the motor clunk into gear. If I...
1998 Ford Contour SVT 2.5L engine/trans VIN: 1FAFP68G9W
Hi Techs, Need some advice from someone who's been there on this one. This is an SVT contour with the Duratec V-6 by the way. Engine is blown and I need to pull for rebuild. I'm looking at clearances and it looks dicey. With the standard tranny I don't have r...
1999 Ford Windstar SE 3.8L MIL Lamp on VIN: 2FMDA5247X
This Vehicle continually sets P0171 and P0174 both banks lean, Vehicle runs fine, no gas milage complaint, we have tested for vacuum leeks, checked MAF and MAF plumbing, Fuel pressure 36 PSI regulator connected and 44 regulator disconnected, we are stumped on ... Trouble codes: P0171 (B1 lean), P0174 (B2 lean)
2001 Ford Escape XLS 3.0L timing cover VIN: 1FMYU01A1K
Hello and thanks in advance for your help. The timing cover on this 3.0 Escape is leaking oil. The oil pan gasket has been replaced earlier and is dry now. Mitchell info says Ford requires engine removal first before doing cover removal. This does not appear t...
2001 GMC Savana 1500 5.7L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GDFG15R91
I'll start from the beginning. Customer stated the vehicle ran out of fuel. After refueling, the van started running poorly. Another shop replaced plugs and wires. Same problem. The van came to me with the doghouse off and new wires and plugs.I removed dist ca...
1997 Hyundai Sonata 2.0L no power
as stated above crank and idle normal. vehicle will not move under its on power.all sensors appear to be within spec.on lab scope cam/crank/tps/airflow/cts/ats/mdp at pcm and sensor. ground line below .005 vdc. injectors pulse width apears to close several mil...
1993 Infiniti J30 3.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: JNKAY21DXP
Vehicled towed in used engine had been installed. Old engine destroyed due to being washed out with to much fuel. Used engine would not start due to hydro locked with fuel in cylinder # 5 checked all, powers & grounds @ ECM found broken injector wires & water ...
2000 Land Rover Range Rover HSE 4.6L Electronic VIN: SALPV1649Y
We have recently came across 2 Range Rovers both with transmission code P0734. Both trucks run perfect, however after two drive cycles, the check engine light comes on. Performed the diagnostic tests according to alldata and everything checked out. Any help wi...
1994 Lexus ES300 3.0L MIL Lamp on, o/d off light flashs VIN: JT8GK13TXR
I need your help again. ES300 has p0500 and p0720, speedo works, has some shift issues, cel light is on and the o/d off light flashes. we have followed the limited info available in alldata, checked the archives and according to alldata it needs an ecm. I just... Trouble codes: P0500 (vss sensor malfunction), P0720
1988 Mazda RX-7 Turbo 1.3L No Start, Stall VIN: JM1FC3327J
Hi all. Got this vehicle from another repair facility. They installed an engine but could not get it running after it ran for 15 minutes then died. First off found trailing ignition not working. Replaced coil with used coil fronm other shop. Got vehicle to run...
1997 Mazda 626 LX 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1YVGE22D9V
The problem I am having is the engine is runnig lean on and off idle speed, the engine hesitates under aload, plus surging and stalling at idle. When it acts up o2 signal is .OO1v STFT 25+. DTC PO171 lean Bank 1 ,po172 lean Bank 2, p1195 EGR Boost sensor circu...
1991 Mercedes-Benz 350SD 3.5L belt tensioner shock VIN: 1260351200
Hello group, The above mentioned vehicle has the followig problem. It likes to eat tensioning shocks about every 8k??? All the basics have been checked and re-checked. All pulleys have been properly checked for true running as well as vertical and horizontal ...
1996 Nissan Maxima GLE 3.0L MIL Lamp on VIN: JN1CA21D8T
Happy Hoildays to all, This Nissan came in due to check engine light is on and it fails the Mass.state inspection. I checked for codes and found P0105,absolute pressure sensor problem,I went to Alldata and looked for TBI's none applied to this problem,I also c... Trouble codes: P0105
1999 Nissan Sentra GXE 1.6L MIL Lamp on VIN: 3N1AB41D3X
This is a ongoing problem that only shows up after customer drives the car. 1st time in with code PO335 CKPS fault code, we verified code with generic scan tool, removed sensor for inspection of sensor and flywheel teeth. No problem found, cleared codes, test ... Trouble codes: P0335, P1336 (CRANKSHAFT POSITION SENSOR manufacturer specific)
1992 Plymouth Grand Voyager LE 3.3L heater VIN: 1P4GH54R3N
Kinda seems simple, but I need some opinions on this goofy heat lose condition. Here goes. This past summer, this truck had a new rad., upper and lower hoses, and water pump installed. It came in to us during our rescent cold snap w/ a lack of heat complaint. ...
1997 Pontiac Grand Am SE 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2NE52TXV
Vehicle came in with the four listed codes(P0530,P1441,P0300,P0108). It is running rough and extremely rich. Pulse width is at 4.3+ during open loop and 7.2+ during closed loop. MAP is reading 2.9-3.0 volts at idle. The cooling fan runs all the time even with ... Trouble codes: P0530 (A/C System Pressure Circuit), P1441 (Evap shows flow during non-purge), P0300 (Random Misfire Detected), P0108 (MAP or BARO Signal High)
1999 Pontiac Sunfire SE 2.2L No Start VIN: 2G2JB12A3X
Well fellow technicians, here is one that is turning me grey. The vehicle came in on the hook due to intermittant no start condition. Car started just fine with codes po335. po342 and p1629 in history. Cleared codes and started and drove car several times for ... Trouble codes: P0342, P0335, P1629
1993 Toyota Camry DX 2.2L MIL Lamp on VIN: JT2SK11E3P
Car came from another shop code 71 Modulator for egr innop repl. No vac. from port R at throttle body cleaned we now have vac. and modulator functions but still no vac. to egr valve.if we unplug vsv we have vac. leading towards ecm but we havent seen to many e... Trouble codes: 71 (egr)
2000 Toyota Tundra SR5 3.4L No Start VIN: 5TBRN3418Y
Hello, This vehicle was towed in as a no start. It stalled while driving and would not restart. Cranks ok. Good fuel pressure and volume, has spark but no injector "flash". It has code P0340 stored, but cam sensor has a reasonable pattern as viewed with the Sn... Trouble codes: P0340 (Camshaft Position Sensor Circuit)
1996 Volkswagen Passat TDI 1.9L lack of power VIN: WVWGG83A9T
Hi Tech's, this diesel came in on hook, customer claimed car quit slowing down for corner. We found timing belt broke. Several lifters were broke and scraped up lifter bores. We replaced timing belt, tensioners, and installed a new head. We also cleaned the in...
1999 Volkswagen Beetle GLS 1.9L glow plug lite flash VIN: 3VWCF21C9X
Good morning group. This 99 beetle diesel came in because the glow plug light starts blinking shortly after startup and keeps blinking. I checked it for trouble codes and none were present or pending. I ohmed out the glow plugs and they were all within specs. ...
1999 Volkswagen Jetta GLS 2.0L tachometer VIN: 3VWSC29M1X
Hello everyone , this Jetta has an inop tach , and flashing oil light. We have the vag software for our mt2500 scanner no intrument or engine codes. The scanner can test the instument panel, the guages sweep and all the indicator lights work . The customer (us...
1993 Volvo 940 2.3L Hesitation, Stall, Poor Fuel Economy, MIL Lamp on VIN: YV1J8708P1
hey fellrz, thez folkz hav 2 of these volvoz n they luv 1 n hate diz 1. droppd it off a month ago, - mil on, n run-n bad. i test drove th car, lookd undr hood n decidd a good tune up juz may help. did till th mil lite came back on. found i had pulld a vac hose... Trouble codes: 231 (short term fuel trim low/high), 113 (long term fuel trim low/high)
1996 Volvo 850 GLT 2.4L MIL Lamp on VIN: YV1LW5541T
Hellow fellow Volvo techs.I have a code 611.Smoke test shows no leaks in hoses,however,I do have smoke from filler inlet while introducing smoke in line at valve by radiator(left side) with key off.I feel this would be normal(for tank expansion) venting to cha... Trouble codes: 611 (Large evap leak intermitant), P0455

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1997 BMW 528i 2.8L MIL Lamp on, low power, late shft VIN: WBADD6329V
Thanks to all who responded. Customer decided he didn't need to purchase a car that he couldn't get fixed other than by a dealer. Since BMW doesn't 'tell all' he felt they didn't need his business. Trouble codes: 14 (ABS Valve Relay), 38 (Pre throttle valve control), 57 (TPS signal from DME), 19 (ASC interface), 154 (can tps), 25 (Pass seat Occupancy Sensor).
2000 BMW 528i 2.8L check engine light VIN: WBADM6348Y
The P1240 Code correlated with the P0441 Code for the Evap Purge Solenoid. Repalcing the Solenoid provided the correct repair. Thanks for the replies Trouble codes: P0441 (Purge Flow Fault Evap Emissions Control System), P1250 (Alldata cannot provide a definition).
1997 Buick Century Custom 3.1L Misfire, MIL Lamp on VIN: 2G4WS52M7V
Thanks to everyone that responded to my help request. I am happy to report that the vehicle has been successfully repaired and running fine for 2 weeks. As most of you suggested the fuel injectors were causing the misfire on cylinder #1 & #6. We ended up onl... Trouble codes: P0300 (Random/Multiple Misfire).
2001 Cadillac DeVille 4.6L No Start VIN: 1G6KD54Y71
why don't we start at the beginning this car came in from auction apart everything with a no start ,no crank condition tried access the pcm with the tech 2 could not was getting all power in the pcm and out so i got some info on the data path in and out the va...
1990 Chevrolet Corvette 5.7L Possible flywheel VIN: 1G1YY23805
Thanks to all and especially to those who replied. We received three replies: two pointed out that the dual mass flywheel is a known problem, one suggested crank shaft end play. We were thinking flywheel; however, upon inspection, we could see no signs of da...
1990 Chevrolet Lumina 3.1L Poor Idle Quality, Surge, Misfire VIN: 21GWN54T6L
Thanks for your tremendous responses. I further ohmed the ECT (which was was well within range hot and dead cold. As suggested I replaced the TPS, IAC, however, there wasn't any change after idle re-learn. As a very last resort, as also suggested, I replaced t... Trouble codes: 22 (high tps voltage).
1994 Chevrolet S10 Blazer Tahoe 4.3L Hesitation, Surge VIN: 1GNDT13W3R
Thanks for all the responses. You Guys are the Greatest! The problem ended up being the fuel pump. Another junk aftermarket pump that someone installed a short while ago. Also had no pulsator in line with the pump! Evidently the fuel pump would start to slow d...
1999 Chevrolet Tahoe 5.7L Misfire, MIL Lamp on VIN: 3GNEK18RXX
hay guys we have not had a chance to try some of your tips on 99 tahoe yet ,customer needed tahoe for the holidays.she will return in a few weeks. we are suspected a vaule problem on 3&4 clys,as about 50% of replys have lead us in that direction we will update... Trouble codes: 303, 304 (missfire).
1999 Chevrolet K1500 Suburban 5.7L brakes VIN: 1GNFK16R9X
Closing with a fix. what a great service, i had 27 great replies. the fix is to clean the front abs sensor mounts. the rust buildup under the sensors cause the computer to lose the signal causing the abs to kick in. i also did find a tsb for this problem. tsb ...
2000 Chevrolet S10 4.3L ebcm VIN: 1GCKT19W9Y
Replaced ebcm, car hasnt been back in a few weeks. Thanx for the replies.Sorry for the delay in closing this request.
2004 Chevrolet Silverado 2500 HD 6.0L air bag VIN: JNK45TREER
did not find the answer I was looking for but did get some feedback as to using a mastertech scanner to do this as well as using genisys although I dont thing it can be used for all module programming and the registering it on the body processor.
1997 Chrysler LHS 3.5L Cuts out, Stall, Misfire, MIL Lamp on VIN: 2C3HC56F2V
Checked timing belt, took it off and reinstalled it. No help,Car went to dealer. Thanx for the replies. Trouble codes: P1391.
2001 Chrysler PT Cruiser 2.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3C8FY4BB91
Sorry it took so long to close this. I was waiting for feed back from the customer. The last time the vehicle was in I drove it for about 5 days and only had the customer complaint happen once. I got a great snap shot of the data and could not find anything ou... Trouble codes: P0300.
1999 Dodge Ram 2500 5.9L No Start VIN: 3B7KF2368X
i received a lot of help on this one,11 replies.most said a pump failure and to check the transfer pump.both proved to be faulty.i am glad we have this forum to help everyone.we all need as much as we can get.thanks iatn rules!!! Trouble codes: P1688 (internal pump controller failure).
1999 Dodge Durango SLT 5.2L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1B4HS28Y6X
I appreciate everyone who replied especially where it was a holiday weekend. I had previously removed the #1 plug and checked to make sure it was synced on the right cylinder and it was. Michael [...] told me in his reply that he usually sets the sync as high...
1994 Ford Ranger XL 3.0L Transmission / drivetrain
I want to thank everyone who offered assistance to FIX this 'clunk', unfortunately the customer has not returned their truck. The majority of help suggested lubing driveshaft splines (that is my first thing to do), after that I'll dive into the rear end. By th...
1994 Ford Tempo GL 2.3L Hesitation, MIL Lamp on VIN: 2FAPP36X7R
Thanx for all the replies guys. Cust. decided he woeld live with the light until something breaks. Trouble codes: 186 (injector pulse high or maf to low).
1999 Ford F-150 4.6L Misfire VIN: B676791149
hi techs : thanks for all the information,well i took the trottle body of and cleaned the egr passages.these passages were blocked with carbon. i also change the spark plugs do the drive cycles and now the vehicle is working is working good . the costomer is... Trouble codes: P0401 (p1000-), P1000.
2002 Ford Crown Victoria 4.6L No Start VIN: 2FAFP71WX3
Thansk to all that replied, after all this it turns out it was a fuel pump. We had driven the car for 4 days with a gauge on the windshild but could never get the car to act up. we scoped the pump motor two times and never saw anything wrong. On a hunch I tied...
1988 Honda CRX Si 1.6L loss of power VIN: JHMED9363J
Thank you all for your assistance. I received many responses that reccomended an OE o2 sensor. The vehicle is waiting for the owner to come up with the bananas to purchase this and an exhaust system, upon close inspection we found a kink at one of the exhaust ... Trouble codes: 1 (O 2 sensor).
2000 Honda Accord EX 2.3L alarm VIN: IHCG5670YA
Hello everyone, I guess the owner of this car dont like alarms, I tested and it worked fine, alarm is a little sesitive. but not out of normal, thanks for all the help and hane a good day and happy new year.
1997 Infiniti Q45 4.1L MIL Lamp on VIN: JNKBY31DXV
Hi Everybody, the Q45 came in this morning ! After reading your responses, the one that really hit home was about the affected components sharing a common power supply. I printed a wiring diagram to confirm.I then found a blown 10 Amp fuse in the left kick pan... Trouble codes: P0325, P0330 (r bank knock sensor), P1110 (l intake valve timing control), P1135 (r intake valve timing control), P1400 (egr/evap control solenoid fault).
2000 Isuzu Rodeo LS 3.2L Poor Idle Quality, Stall VIN: 4S2CK58WXY
Thanks to all who responded. Wade from California sent info concerning a reflash for the PCM. All test for vacuum leaks, codes, power or ground problems, sensor inputs and PCM control outputs turned up nothing. I have referred the custormer to the dealer for t...
1994 Jeep Grand Cherokee Limited 5.2L Cuts out, Stall, Misfire VIN: 1J4GZ78Y6R
When the Tech was assembling the engine, he had it up on TDC of Compression stroke. When he inserted dist, he pointed rotor to Number one at cap. When sync with scanner, he was already between dist cap terminals and synced with wrong cylinder. He should have p...
1996 Kia Sportage 2.0L Electronic VIN: KNDJA723XV
Sorry to say but did not get any help on this one. Only one reply and he gave me info I already had. I'll have to send to dealer If I find out what they do to fix I'll let you know.
2000 Mazda MPV DX 2.5L engine VIN: JM3LW28G5Y
We did not get many replies on this one. Customer states that it used two quarts in 4000 miles. We will fix the leaking valve cover gaskets and oil pan gasket and have him check the oil every week.
2002 Nissan Altima SE 3.5L High Idle VIN: 1N4BL11D92
Hi All...well this puppy hasn't been back so the second relearn must have taken ...replies were ...charles thought there was a recall on the pps's ...Dan said he saw this several times and eack time the ecm had to be replaced...I wasn't ready to go that way wi... Trouble codes: P0507 (High Idle 200 rpm idle over spec repeat hard code), U1001.
1996 Pontiac Grand Am SE 2.4L instrument cluster VIN: 1G2NE52T4T
thanks to all that replied. i replaced the instrument cluster and did the pass-key relearn and fixed the car. thanks again to all. chad
1999 Pontiac Firebird 3.8L MIL Lamp on, limited power VIN: 2G2FS22K5X
I cleaned and tightened the terminals at the TPS assy. Customer took the vehicle and has not reported any further problem. Must have been a flakey connection at the TPS assembly that was sensitive to temperature. Next time one of these vehicles is in the sho... Trouble codes: P1221 (TP Sensor 1 2 Performance).
1988 Toyota Pickup 2.4L Hesitation, Cuts out, Misfire, Poor Fuel Economy VIN: JT4RN63AXJ
Sorry it took so long to close this. After checking every thing imaginable on this truck over and over, I finally took the injectors (which tested good) out and found a large amount of rust and dirt plugging the tops of two of them, I cleaned them and the fuel...
1999 Toyota Corolla CE 1.8L Poor Idle Quality VIN: GUH33NNBFS
thanks for guys that helping me. i am cleaning T.B, injector, and these problem willbe set thanks for again.
2000 Toyota Sienna LE 3.0L Anti-theft VIN: 4T3ZF13C6Y
Thanks for all the replies. I have not yet seen this car back, and its probably because the owner of the vehicle wasnt too interested in getting it fixed to begin with, and is happy just having it disconnected. I had planned on checking all the switches from t...
2000 Volvo S80 2.9 2.9L ECC Control Panel VIN: YV1TS94D7Y
This one has been a challenge. This car has had a history of rather random failures, and intermitent communication problems with various systems. For example, just sitting with key on, battery charger connected and on slow charge, hood and drivers door open, s...
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