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Prev Professional Automotive Repair Technical Discussions for July 21, 2007
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Open Help Requests for All Makes and Models
Help Request Answers
1998 BMW 750iL 5.4L Poor Idle Quality, Hesitation, Poor Fuel Economy VIN: WBAGK2321W
after a complete tune-up due to all cylinder misfire the service engine is now off but the short term fuel trim is at +20.5 and you can here a large vacuum leak in the back/rear driver side of the engine/intake area. is there a common leak? Hoses? Intake?
1994 Cadillac Eldorado Touring 4.6L oil VIN: 1G6ET1290R
4.6 NORTHSTAR I replaced the starter ( I wonder how much the engineer that thought up this design makes for a paycheck ) anyways when i pulled off the top cover there is NO vacuum hose to the pressure reg valve ? is there suposed to be any vac line to the valv...
2003 Cadillac Escalade 6.0L bcm VIN: 3GYEK63N23
Hi group, I have to replace the BCM and the dealer told me it would have to be programmed. Does anyone know the procedure? I have a Tech2 but not the TIS. Can it be done without the TIS? Thanks in advance.
1996 Chevrolet Blazer 4.3L abs/4wal
Vehicle arrived at shop with complaint of low and fading brake pedal. A short road test confirmed what I could feel in the stall, a low and fading pedal. Inspection revealed many problems. As shown in repair history all above items replaced, yet symptoms persi...
1996 Chevrolet S10 4.3L turn signals VIN: 16CDT19XXT
1997 Chevrolet Blazer 4.3L Hard start VIN: 1GNDT13W7V
This is an intermittant problem that causes prolonged cranking. I have not been able to test the fuel pressure at time of failure but a general static KOEO test shows the system building plenty of psi @ 60+ but when the pump quits it drops to about 20-30psi al...
1993 Dodge D350 5.9L Stall VIN: 3B7ME33CXP
This truck run well but at idle the idle speed slows down were the engine almost stop running, and most of the time will go back to idle and run fine untill it drops idle again. There is no codes, This only happens intermitant.
2000 Dodge Ram 2500 Truck 5.9L MIL Lamp on, No Codes Set
Hi Folks This one really got me stumped. My boss's brother has stopped in several times with the MIL light on. Each time my boss found NO CODES PRESENT. He also cleared the codes, which does turn the light off. My boss finally got me involved, and I tried to f...
2002 Dodge Grand Caravan Sport 3.3L tcc VIN: 2B4GP44302
tcc cirit problum with a abs buss comm failure and a abs pump failur
2003 Dodge Durango Sport 4.7L Poor Idle Quality, Hesitation VIN: 1D4HS38N03
Trying to help a friend, I have thrown a couple of parts at this, but still have same problem. Intermittently on cold start, will rev high (2000-2500 rpm) then settle back down. Hesitates badly for first 5 minutes of driving then does mostly OK with occasional...
1997 Ford F-250 XL 7.3L MIL Lamp on VIN: 1FTHW26F8V
Really stuck on this one guys. All resistances between the glow plugs and the PCM are correct per All Data and Mitchells diagnostic trees. Amperage on each bank starts out at about 72 amps and settles at about 34 amps so the system is working. Monitor wires to... Trouble codes: P0605, P1395, P1396
1999 Ford Windstar 3.0L d/s rear parking light VIN: ES547900DI
hi all, i have this windstar and it came in with the rear d/s parking light out. ran some tests and power is good and wiring is good. this system sends power to the bulb and a module grounds it to turn it on. so i ordered a new one. while waiting i realised t...
2004 Ford F-150 STX 4.6L antitheft VIN: 1FTRF14W94
ok all hear is one for you all. this truck feel through the ice into a lake about 18 months ago and has been sitting since. i got it particial restored, that is to say in about a 100 pieces. well it all back together now. problem is pcm/ecm was changed and ins...
1997 Infiniti QX4 3.3L AC blower VIN: JNRAR05Y8V
Customer brought the car for brake and tun up job , and request inspection and diagnosis on air conditioning system ,for blower allway on . I do not have enhanced scanner for this car , have AE. generic , look on techmail and can't fine any related problem . I...
1993 Lexus LS400 4.0L Cuts out VIN: JT8UF11E9P
i have this lexus/ls400 when your driving it if you go past 25% on the throtle it falls on it's face, it almost feels like it is go in and out of fuel cut. fuel psi. is good i check for codes found tps code. i replaced it adjusted to sepc. test drove same prob...
2002 Mercedes-Benz C240 2.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: WDBRF61J82
This problem happens only after 30 minutes or more of engine running and when its present if you cycle Ign OFF and start engine again problem disapear for many minutes; also What I found in misfire cylinders is that ignition coil firing signal is missed, Power... Trouble codes: P0302, P0306, P0300
1988 Nissan Sentra E 1.6L Body VIN: JN1PB21S8J
Hi, This Sentra was towed in rough running with cylinder head gasket blown between cylinder 3 and 4. No overheating or coolant loss that we know of. Head was tested, and re-surfaced and head gasket and bolts replaced along with timing belt, tensioner, water...
2001 Nissan Sentra GXE 1.8L No Start VIN: 3N1CB51D91
Hello to all, I don't normally work on Saturday but this car is driving me nuts. It started out as an intermittent no start. I had the car for a week and no problem, the customer takes it home and lo and behold-crank but no start- it comes back and atleast it...
1995 Oldsmobile 88 Royale 3.8L MIL Lamp on VIN: 1G3HN52K9S
Greetings ladies and gentlemen! I have a weird one here that does not want to let go. This car came to us running and driving with no MIL but the engine had a lower end knock. Rod bearings were fried. Replaced engine with good used unit from wrecking yard. Whe... Trouble codes: P0325 (Knock Sensor Circuit Malfunction)
1988 Rolls Royce Silver Spirit 6.7L ac VIN: SCAZSO2B5J
AC and blower are not coming on after starting the car, only occasionaly everything works fine: there's a slight delay for the blower/AC to come on after engine start, which I suppose has to do with the engine-run function, and is normal (...I worked on other ...
1993 Plymouth Grand Voyager SE 3.3L abs VIN: 1P4GH44RXP
Hard Brake pedal, master cylinder shoots out fluids on top of master cylinder caps when braking. Replaced accumulator and no more fluids shoting out but still hard pedal. has power to electrical system. feels like no booster help. Stops ok, just hard redal.
1996 Plymouth Grand Voyager SE 3.3L trans VIN: 1P4GP44R0T
This is my personal car, I am a Saab guy and have only generic scan tool support. My trans slips and sets p0720. I was driving on the highway at steady speed (60-65) and the trans started slipping with no warning. The MIL came on at the same time. There was n...
1991 Pontiac Grand Prix SE 3.1L Poor Idle Quality, LOW VACUUM VIN: 1G2WJ14T2M
Hello and thanks to everyone in advance. this is my first post to iatn. i recently recieved this vehicle from another shop with all of the parts listed already replaced by them. vehicle would start and not idle. found the new iac to be faulty. replaced & relea...
1997 Pontiac Sunfire SE 2.4L Engine VIN: 1G2JB12T7V
The start of my nightmare: I received this vehicle in a non-running condition. The water pump failed resulting in some superficial cylinder scoring of which I honed with success. Compression was low due to ring collapse as well as a cracked cylinder head which...
2003 Toyota Highlander 3.0L Heater/ AC VIN: JTEHF21AX3
Hello Toyota techs, I am having a weird problem with this Highlanded manual ac heater system.Once in a while the blend door gets stock either all the way hot,or on ac cold. It happens intermittently, once in a while. Once I was able to see it stock, I moved th...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 Chrysler PT Cruiser GT 2.4L MIL Lamp on VIN: 328FY78G33
the pt had a turbo so the relays were not in the fuse box the customer picked up the car so i didnt get any further so im closing the request thanks to all Trouble codes: P0480.
1997 Dodge Dakota SLT 5.2L temperature control cable VIN: 1B7GL23Y9V
this request was actually a fix posted for information puposes.
1999 Dodge Durango SLT 5.9L Cuts out, MIL Lamp on VIN: 1B4HS28Z2X
Cornelio [...] headed me in the right direction. I install a factory remanufactured Powertrain Control Module ( Vin and Miliage needed to be programed ). Vehicle will now hit 4000 rpm before valves start to float. Customer was informed. Trouble codes: P1391 (Intermittent Loss Of CMP Or CKP).
1990 Ford Mustang LX 5.0L battery draw VIN: 1FACP40E8L
Most of the replies centered on how to test for draw. The draw was verified at 325ma on the courtesy lamp circuit fuse #8. It should be less than 50 ma. Other suggestions were the lighter and alternator, but these weren't powered by fuse #8. The map lights wer...
1996 GMC C1500 Sierra SL 4.3L MIL Lamp on VIN: 1GTEC14WXT
Hi gang. First I want to thank the eight responders that offered help despite their busy schedules! Responses were varied pinched wires from the install(2),coolant temp., bad ground, leaking fuel pressure regulator, O2's plugged in wrong bank,misfire's,& moist... Trouble codes: P1133 (Bank 1 O2 sensor insufficient switching), P1153 (Bank 2 O2 sensor insufficient switching).
1999 Honda Civic EX 1.6L all key off functions VIN: 2HGEJ8542X
2005 Honda Element EX 2.4L No Start, immobilizer VIN: 5J6YH186X5
Thanks to Mark [...], We have a happy customer. Heres how it went. When the HDS auto Id's the vehicle and is now asking for mileage, you highlight the vin and correct it there, next enter the mileage, and hit next it will ask you if you want to rewrite the vin...
2000 Jaguar XK8 4.0L oil light & low coolant warning VIN: SAJJA42CXY
The low coolant light was fixed by replacing the expansion tank. The tank contains a magnetized float which sinks with age. It cannot be serviced, hence the new tank is the only repair. The oil warning light required a switch, located above the sender for the ...
1993 Pontiac Grand Am SE 2.3L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: 1G2NE113PM
Customer decided to junk vehicle so unfortunately we couldn't look into this problem any further. Thanks for the replies Trouble codes: 35 (IAC idle speed error).
1999 Pontiac Sunfire SE 2.2L Compressor VIN: 1G2JB1247X
Most replies are low refrigerant, I can see that was part of the problem. But that did not explain the very low psi increase on the high side after another can(12 oz) was charged. I ask about compressor to see if anyone has seen a compressor working on suction...
2003 Toyota Corolla CE 1.8L MIL Lamp on VIN: 2T1BR32E63
Hello, Sorry for The delay,Everybody was pretty much saying The same put A cat in it And have A reflash Thats what I did and car is through emissions. I was Also told go right To dealer for Cat which I did,I could not find Aftermarket any Ways Expensive fi... Trouble codes: P0420.
2002 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWPD63B52
after repairing all the other complaints on this vehicle, the customer decided to take the car and bring it back at a later date. after scouring the intake system for leaks and verifying that the power boost valve was okay, i was going to put a vac sensor in ... Trouble codes: P1479.
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