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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 25, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1993 Buick Skylark Custom 3.3L No Start VIN: 1G4NV54N5P
I got this vehicle from another shop who has thrown their hands up and I am about to do the same thing. Car originally came in with a starter running even with the key out of the ignition. The shop installed a new starter, battery and found that the minute the...
1996 Buick Century Custom 3.1L No Start, Stall VIN: 1G4AG55MOT
This car came in about a month ago with a stall/no start complaint. It had good fuel pressure on start up but it would begin to fall after the car ran a while sometimes just a few minutes or sometimes an hour or more. It would fall all the way down till it eve...
1994 Cadillac Seville SLS 4.6L Poor Idle Quality, Hesitation VIN: 1G6K5297RU
Number 8 cylinder has little drop when doing injector drop test using onboard system , has low compression ,oil doesnt help .must have a valve problem .My question is ,has anyone seen vavle or cam trouble with this Northstar engine .We would like to heal it wi...
1986 Chevrolet S10 2.8L fuel gage VIN: 1GCB514R2G
Need help on this one.pulling hair out now.thanks in advance for any tips.
1993 Chevrolet Camaro Indianapolis 500 Pace Car 5.7L No Start VIN: 2G1FP22POP
I have a start and run 3-5 secs. and die I am losing injector pulse . I have a code 41 and have ck that by gm trouble tree and no problems. I KNOW CODE 41 KILLS THE INJECTORS TO PREVENT FLOODING JUST CAN'T SEEM TO DIAGNOSE ANY PROBLEMS W/SYSTEM AND GET INJECTO... Trouble codes: DTC, 41 (est circuit short or open)
1996 Chevrolet S10 LS 4.3L 1-2, 2-3, 3-4, tcc VIN: 1GCCT19W9T
Hey GM Techs, This is my own personnal vehicle. It intermittantly has a check engine light, no power, and gear shift indicator light goes out. Once i get the vehicle going, it seems ok power wise. Keeps setting code for shift solenoid electrical and tcc electr...
1997 Chevrolet K2500 Suburban LT 7.4L Fuel Gauge VIN: 1GNGK26J6V
I have a truck in the shop that was wired incorrectly for the fuel sender we repaired the wireing as per the tech manual and now the gauge reads high at all times. I notice in the testing they have you test at 0-90 ohms but the sender is a 40-200 ohm sender I ...
1995 Dodge Intrepid 3.5L Cuts out, Stall VIN: IDONTKNOW0
car came in on a tow truck for diagnostic. it would not stay idleling after start up. hook up a scanner and found a code for no ref. voltage at MAP sensor. but had no engine light. check for voltage at MAP sensor,it was good. disconnected the batt. to clear co...
2000 Dodge Intrepid 2.7L Mechanical VIN: 2B3HD46R1Y
This car was towed in no start customer said when driving it started missing bad and sounded "like a diesel" after he shut it off it would not restart. It appears that the timing chain has broken or come loose because the car cranks over very fast and it seems...
2002 Ford Taurus LX 3.0L No Start, Cuts out VIN: IFAFP55202
in the mornings on cold start test i don't have a injector pulse for the first 10 revolutions . then all of a sudden i have a pulse and the car will run fine the rest of the day. some mornings it will start fine. i replaced the iac because it was stuck open , ...
2002 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73E62
Hello everyone I have a 2002 explorer in the shop with a cyl 3 miss fire. The truck came in with this miss and the story that the owner put some old gass in the truck and it started running bad. then he replaced the plugs and wires and the fuel filter after he... Trouble codes: P0303 (cyl 3 miss fire), P1151 (ho2s rich left), P1152 (ho2s rich right)
2004 Ford F-250 Super Duty Lariat 6.0L Accessories VIN: 1FTNX20PX4
'04 F Super Duty...If you get close to it, and sneeze, the alarm (VSS) goes off. I got ahold of a partial Ford document that details setting the sensitivity on this thing, and it talks about a "Programming Overide" button. Anybody got any idea where the progra...
1994 Honda Civic DX 1.5L Mechanical
does anyone know the difference between a s24a and m24a thank you
1979 Mercedes-Benz 300CD 3.0L automatic ac
This ac unit only blows on defrost and someone has changed the combo valve under the hood, I forget what those are called, also changed is the push button switch and the temp dial. Amp is original and looks okay. My main question is on the push button switch c...
1989 Mercedes-Benz 300E 3.0L ignition system VIN: WDBEA30D1K
This vehicle was running keys were lost at which time door handles removed to make other keys. This is the information the owner supplied me vehicle was in another shop and I believe the owner is knowlegable to the degree of explaining what had been done. Sinc...
1998 Mitsubishi Galant ES 2.4L obd2 VIN: 4A3AJ56G6W
Hello, I have a 1998 mitsubishi galant es with a 2.4l that refuse to run the obd2 monitor, the vehicle have been driven daily by the customer for the past three months. the production date on this is 8/1997, the vin is [...] Their is a bulletin fo...
1992 Plymouth Voyager LE 3.3L limp-in mode VIN: 2P4GH55RXN
Customer complained that transmission would intermittently go into limp-in mode, locking itself into 2nd gear until being turned off and back on. We found that after driving the vehicle between 10 and 20 miles, it happened to us, and usually set a fault code 4...
1994 Toyota Camry LE 2.2L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 4T1SK12EOR
Got one of those lovely intermittents guys.I'm talking car may run fine for 2 weeks or a month at a time.Before I got it it had been in the shop numerous times.Distributor had been replaced 5 times,ignition module once,plugs, wires the whole schabang.The distr...
1998 Volkswagen Passat GLS 1.8L valves VIN: WVWNA63B9W
I had to finish what two others had started, so this has been a nightmare from the gitgo. I got it with head and belts on , but a wacked out bcm that would not let it crank. I replaced bcm, got it running but it seemed out of time. I pulled valve cover and tim...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1999 Cadillac Catera 3.0L Poor Idle Quality, Misfire VIN: W06VR52RSX
Thanks to all who responded to recent inquiry about the poor idling Cadillac. I rechecked for vaccum leaks and found none. I did find the check engine light not working. I pulled the timing belt cover back and discovered the belt had been replaced. I found the...
1972 Chevrolet K-10 307CID Mechanical VIN: CKE1421121
we have checked flow at the rear and fluid sqirts to the far side. we have also tried pads from metallic to organic (oe was probably organic). the rotors and drums have been resurfaced. we even pulled all of the guts out of the combination valve to make absolu...
1996 Dodge Avenger ES 2.5L interior power VIN: 4B3AU52NXT
I began troubleshooting this vehicle by methodically isolating each component that the black/white wire was supplying voltage to,and was getting knowhere.Near the end of the line I had to remove the right inner fender panel to get to the final components.Leak ...
1999 Dodge Ram 2500 5.9L MIL Lamp on, Won't run above idle VIN: 3B7KF2367X
Found the transfer pump was pumping but below spec, thus the injection pump was wiped out as well. New transfer pump and injection pump and he's on the road again. Suspected this was the case but was shocked at how suddenly it failed. Customer states he did no... Trouble codes: 252 (undocumented), P0251, P1693.
1994 Ford Ranger STX 4.0L No Start, Misfire VIN: 1FTCR14X9R
Hi everyone, sorry this took so long to get posted. The customer could not turn loose of the vehicle even though it wasn't very dependable. I looked at the fuel pressure vaccuum line and it was dry and with a guage hooked up it appeared to be working correctly...
1997 Ford F-250 Lariat 5.4L ABS & Speedometer VIN: 1FTFX28L4V
John from Mass. hit it right on the nose. We checked the coils and found #4 & #8 to be the problem. We changed those as well as all 8 plugs being they where original. Test drove the vehicle and speeometer and ABS worked as intended. THANKS TO EVERYONE YOU ALL ...
1998 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMPU18L2W
Thanks that everyone that replied. We took the advice that almost everyone gave and replaced the spark plug boots/ wires and the problem was fixed. I had never ran across this before, but most of the IATN respondents did. What a time saver. thanks again to eve... Trouble codes: 300 (random mutiplier misfire detected).
1999 Ford Explorer Eddie Bauer 4.0L MIL Lamp on VIN: 1FMZU34E9X
Hi guys,Thanks to everybody for replying for this post, after driving this truck for one day w/ fuel gauge on windshield i found out that fuel pressure drop about 20 psi, but not enouf for the truck to loose power.So i replace the fuel pump. drove it for three... Trouble codes: 171 (system lean bank 1), 174 (system lean bank 2).
2003 Ford Explorer XLT 4.0L noise VIN: 1FMZU73K53
thanks to all that replied, sorry for the long post this vehical was so intermittant i wanted to wait to verify repair, smoke tests and fuel trims didnt indicate vacuum leak, replaced intake plenum per other posts for baffle noise and noise still there light t...
1995 Mercedes-Benz S500 5.0L brakes booster VIN: WDBNG75J61
i want to tanks to alexander from georgia, raul [...], robert storzione,wrench 4 hire,peter [...], rbraulb,philip clark,frank scandura,for the help,(a defective brakes master cylinder was the problem)i let customer to drive the car for two weeks, to make su...
1999 Mercury Villager Estate 3.3L MIL Lamp on VIN: 4M2XV11T5X
The problem with this code was a broken wire between the TCM and the resistor wire going to the Pressure control solenoid, it was near the resistor under the inner fender. It was found by removing the TCM under the dash and testing pins 1 & 2 on the harness be... Trouble codes: P0745 (Pressure control solenoid).
2000 Nissan Maxima GLE 3.0L Poor Idle Quality, Surge, MIL Lamp on VIN: JN1CA31A6Y
Thanks to all who replied I sold the the intake and I gambled selling the iac with luck when I removed the intake I left the throttle body in place and found some coolant lying in the intake inspected further to find that the iac plate gasket/seal was leaking ... Trouble codes: P0505.
1993 Pontiac Grand Am SE 3.3L inj pulse eng off VIN: IG2NE14N3P
Found new crank sensor was putting off intermintent signals. I did not install it so I do not know what company supplied it. It must of been internally shorted as it would put off signals with engine not running.
1995 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52K4S
Thanks for the replies and info. Ed's info about the year on the scanner was close. My snap-on solus quit on me the other day and I borrowed an otc. When I plugged it in and entered the info BINGO I had communication and found a knock sensor bad from the engin...
2001 Pontiac Grand Am SE 2.4L wont start at times VIN: 1G2NF52T81
HI AGAIN Y'ALL !!! Thanks for all your help. The lock cylinder fixed it) That is as some said the passlock sensor is part of the lock cylinder housing. At fist I thought it strange about the key not being part of the kit. Then as I went to get the new cylind...
1994 Toyota Camry LE 3.0L abs VIN: 4T1GK12E7R
We finally got this ABS system working.We found a module from the wreckers.The customer brought the car back in,and all is well.Thanks for your help.
1998 Toyota RAV4 2.0L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on VIN: JT2SK12E5R
hello all tech, thank for all the replies. sorry I'm closing this this without fix.My co- tech used aftermarket air fuel ratio sensor.He told me he order it as O2 sensor,so it may be wrong one.I told him to buy it from the dealer.he is still deciding, dealer p... Trouble codes: P0171.
2002 Toyota Tundra SR5 4.7L Poping noise VIN: 5TBRT34152
The fix was to clean up the throttle bore and blade. It was extremely dirty with a hard baked on layer of residue that took a lot of scraping and brushing to get it all out of there. It had to have been catching and or sticking the throttle blade and cause it ...
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