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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 22, 2007
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
1998 Cadillac Catera 3.0L Misfire VIN: WO6VR52R8W
Vehicle came for misfire and headgasket job cuz it was leaking dexcool from the back of the engine cant see cuz of no room between firewall. decided to replace it when opening the cowl or should say 1/4 way on the job found a heater valve leaking . stopped rig...
2003 Chevrolet Suburban 1500 LS 5.3L turn signals VIN: 3GNFK16ZX3
Here is an unusual one. When turning the left turn signal on, all 4 directionals flash (like the hazards are on). About 1 month ago, I replaced the multifunction switch for the same problem. All was well until last week. I find it hard to believe that 2 switch...
1990 Ford Mustang LX 5.0L Poor Idle Quality, Hesitation, Surge VIN: 1FACP41E6L
Hello Ford Tech's I Have A Street Rod With a 1990 Mustang 5.0 Auto Trans. I Know You Can Not Read Data On A Scan Tool For This Year. What Has To Be Done To Install A 1992 ECM So we Can Read Data? This Car Has A Hesation Cold And Acts Lean. OK After Warm. We ...
1996 Ford F-150 Eddie Bauer 4.9L readiness monitors VIN: 1FTEF14Y7T
I have this F150 that will not pass inspection because 4 readiness monitors are not-ready. They are catalyst,secondary air system,o2 sensor heater and [...].Since the last inspection this truck has had a motorcraft alternator and an interstate battery.These...
1999 Ford F-350 Super Duty Lariat 7.3L Hesitation, Surge VIN: 1FTWW33F0X
I have a 1999 Ford F350 that has a surge between 1600 and 1800 RPM. It does not matter what gear you are in, although it won't do it at idle. Only under a load. When it surges, the throttle position voltage is correct, the high pressure oil spec is correct and...
2003 Ford F-350 Super Duty XLT 6.0L No Start VIN: 1FTSW31P53
ford techs , need ya baaaaaaaaaaaaaaaaaaaaaaaad recently replaced high pressure oil pump on this 03 f350 6.0 . when tech tried to start engine starter would not engauge. after checking over all work found pcm would not command ground to starter relay.further c...
2004 Ford F-550 Super Duty Lariat 6.0L Unknown VIN: 1FDAF56P24
This trans was rebuilt about 1 year ago, it had taken out 2 clutches and the planetary pin was coming out, we rebuilt it and the customer complained that it would sometimes go into reverse hard, we replaced all the solenoids and no change, we took it to ford h...
2004 Ford F-250 Super Duty Lariat 6.0L alternator warning light VIN: 1FTNX21P24
Hi folks. The alternator warning light is reported comeing on and going out intermitantly. Every time I go to check it out everything is working fine. No complants of flat batteries. Friday, the truck came in again with the same fault. I went to check the char...
2000 GMC Sierra 1500 SL 4.8L MIL Lamp on VIN: 2GTEC19V3Y
Hi this my be simpile but i havn't ck it out yet. cosmstor says ck engine light on he had a friend ck the codes he said that thier was no commations to the ecm I said it sounded like a blown fuse but then he told me that it drives fine. I would think if it was...
2002 GMC Sierra 2500 HD SL 6.6L No Start VIN: 1GTHK29132
need a little help on this one not really a diesel tech, cranks will not start, took fuel supply line off back of engine no fuel coming out.while cranking fuel pump relay does not click, all fuses and relays are good, this is a four prong relay have power comi...
1992 Mercedes-Benz 300SD 3.4L Blower Motor VIN: WDBGB34E2N
I cant get the motor to turn on if i give it direct power it works. 12v goind to motor but no signal coming in the signal wire. cant find the source of the peoblem i believe it is the control unit in the middle of the dash. very hard to find item to test my ve...
2003 Mercury Mountaineer 4.0L instruments VIN: 4M2ZV86K13
Good day. The instrument cluster is completely inop on this truck. The powers and grounds test correctly. I read a post in the archives about the exact same probelm but was not fixed. One reply in the post made mention to an updated cluster, another made menti...
1993 Nissan Sentra 1.6L Surge VIN: 1N4EB3219P
this car idles fine until the transmission is put into any gear, then idle goes up about 500 rpm. all else is normal-anyone have any ideas why shifting a standard transmission into gear would increase idle. thanx, bill
1989 Oldsmobile 98 Regency Touring 3.8L Poor Idle Quality, MIL Lamp on VIN: 1G3CV54C7K
Olds guys need a little help on this one scanned the car had code 26 Quad Driver Module Circuit from what i under stand this driver grounds things like egr and purge soilniond and fan relys and stuff like that how do i figer out witch one is bad every thing se... Trouble codes: 26 (Quad Driver Module Circuit), 41 (Cam sensor circuit)
1994 Pontiac Grand Prix SE 3.1L MIL Lamp on
this is my personal car check eng light came on i went to check for codes and found at the dlc that the vehicle was never wired from the factory it has the a terminal ground wire but not the b terminal could not find a good wiring diagram anywhere to tell me w...
2001 Pontiac Montana 3.4L no security lights VIN: 1GMDX03E61
To GM specialist, the car that had been working was towed to my garaged and it can not start. I checked it with a MODIS computer scanner and it displayed the error code PO 1626. Also after the check the dashboard security light does not light up. After 2 hours...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1998 Cadillac Catera 3.0L no spark or fuel VIN: W06VR52R6W
Sorry it took so long to respond. This is a used car so I can only work on it when I get an extra minute. Thanks for all the responses. Alot of the responses suggested a bad PCM which seems to be the problem. The car had good power and ground going into the co...
1998 Chevrolet Blazer 4.3L temp door actuator VIN: 1GNDT13W3W
customer picked up truck and has not returned. i could never prove what was wrong with this truck. i learned more of how this system from the replies and your replies made me think. thank you for your help. all of you. iatn is the best.
2002 Chevrolet Malibu 3.1L radio/dash gauges/key fob VIN: 1G1ND52J82
Well I was not able to get car back, this was not a regular customer and have not heard back since. From the the replies I would like to make a couple comments, first there is definatly a high rate of failure for ignition switchs and bcms, but since my tech ba...
2000 Chrysler Grand Voyager SE 3.3L instrument panel VIN: 1B4GP4464Y
i measured vltage going through the ccd circuit and noticed it was 8.5 volts it was only supposed to be 2.5 on the high side.i started to unplug each module one by one while monitoring my voltmeter wich was connected to the ccd circuit at dlc connector until i...
1997 Dodge Grand Caravan ES 3.8L Stall, Misfire, MIL Lamp on VIN: 1B4GP54L2V
Sorry for the late reply. After looking at this van further and rechecking everything, we even pulled the transmission, we still couldn't see anything. Then luckily it started acting up for us. After looking at the scope for a while I figured out that the alte... Trouble codes: P1391 (intermittent loss of cam/crank signal), P0352 (coil 2 primary circuit malfunction), P0140 (downstream o2 stays at center).
2000 Dodge Ram 3500 5.9L No Start VIN: 1B7MC33781
I said in Original post that the truck came back in in Feburary for the 2nd pump. What I didn't mention was that the Fuel tank read a 1/4 tank like it did before (first time). I went down and got 5 gallons of fuel for it thinking gauge was bad and it didn't he...
1995 Ford Windstar GL 3.8L 2,3,4 No Shift VIN: 2FMDA5144S
Sorry for the delay, its been very bussy. As for this Van, I finally had to change the transmission as few of the replies suggested, so its been a week and the customer has not come back with any complaints. Thanks to all for their help and time.
2003 Infiniti M45 4.5L fuel gauge VIN: JNKAY41E73
I tested the instrument cluster with a snap on gauge tester and it showed the instrument cluster is bad. A new one has been ordered from infinity . those instrument clusters are on back order from infinity and I have to wait for 5 weeks to get it . I am pretty...
1994 Jeep Cherokee Country 4.0L housing mount VIN: 1J4FJ78S4R
All replies were helpful, I fixed the job from below the vehicle, but found it easier to get the housing started back on from above. My 94 Jeep had a 14mm hex bolt, and using a 14mm allen and sliding a breakerbar with a deep 14mm socket over the allen from und...
1997 Mercury Tracer LS 2.0L Engine running VIN: 3MELM15P7V
Well we now have a sorted story about this as the car just 'blew up' according to the tow truck driver. So we will yank the head off and see how bad we have it now. Hopefully I can fit enough to get running and sell as my step mother now has no confidence anym...
2005 Nissan Murano S 3.5L Exhaust VIN: JN8AZ08T55
Dealer suggested an engine flush so we did 3 but did not help so we pulled the valve covers and intake manifold and we could see the oil trail from PCV port down 2 intake runners and there was just a little sludge buildup in the engine which plugged the drains...
2001 Volkswagen Beetle GL 2.0L MIL Lamp on VIN: 3VWBB21C61
customer never brought the vehicle back so i could check or try the things offered as help. would really like to know what was going on. if it does show up and i can fix it i will post the results. thanks everybody for trying to help me. Trouble codes: P0103.
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