Automotive Technicians Technical Discussion and Fixes for May 9, 2009

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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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	Help Request	Answers
	1971 Chevrolet Corvette 454CID starter,flywheel VIN: 194371S117 This 71 Vette presents with the complaint of repeated starter failures, he has had stock rebuilds, speed shop hi-torque etc. replacements. I disconnected the battery and manually powered up the solenoid to engage the starter pinion into the flywheel ring gear....	View
	2000 Chevrolet Cavalier 2.2L loc VIN: 89DDSPM110 radio always on loc tried factory reset and doesnt work. pulled fuse for radio and dome light ,radio works for a second then goes to loc	View
	2000 Chevrolet C2500 5.7L Poor Idle Quality, Cuts out VIN: 1GBGC24R5Y After replacing the cylinder heads on this truck it will not run properly. misfire data shows miss on cylinders #1 and #2. There is a misfire (at idle) of less than 50 on #1 and around 180 on #2 cylinder. When rpm is increased to about 2000 rpm #1 cylinder goe...	View
	2003 Chevrolet Trailblazer LS 4.2L Brake System Entirely VIN: 1GNET16S50 My Sister Inlaw decided to be a Mechanic,And refill Master Cylinder,But she used PS Fluid,So needless to say My Brother asked me to help. I can't find the ABS Control Module on the Vehicle,Haven't done one of these as yet,But I do know I will need to Change an...	View
	2006 Chevrolet c8500 8.1L Misfire, MIL Lamp on VIN: 1GBM8C1GX6 this truck is a propane delivery truck that was converted to run on propane. this truck came in yesterday with p0200 (injector control circuit) set. we cleared the codes, and let him drive it, because he had deliveries to make. he brought it back in today, bec... Trouble codes: P0200	View
	1992 Chrysler LeBaron LX 3.0L chimes VIN: 1C3XU5539N Hello group. I have a 92 lebaron conv. here today with an intermit chime and door lock problem. as you drive the chime will ring and then the locks will attempt to lock (as they do at 15mph). I am not sure what is commanding the door locks to lock. It seems to...	View
	2005 Chrysler PT Cruiser Touring 2.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 3C4FY58B25 cust. complant of car stalls out and idles rough. have reaccuring dtc of po132 [...] installed new o2 sensor bank1 sensor1 , new plugs and wires and new coil. car runs fine down the road .at idle it will miss and stallout Trouble codes: 132 (02 sensor 1/1 voltage high), 172 (fuel sys. bank 1 sensor1 lean)	View
	1996 Dodge Dakota 5.2L No Start VIN: 1B7GL23Y1T I'm running out of ideas on this one. Truck sat over the winter, some minor mouse damage to wires under the hood and to the fuel pump. All wiring repaired where problems were found. Battery died over the winter also. New battery installed, crank no start condi...	View
	1998 Dodge Dakota SLT 5.2L Poor Idle Quality, Stall VIN: 1B7GG22Y8W the truck was towed in it will idle when cold for a minute and then start to miss and the iac will run the whole way out and shut down the engine. We changed the iac cam sencor and crank sencor checked and set sync. signal changed computer and the tps the weir...	View
	2001 Dodge Grand Caravan ES 3.8L Surge VIN: 2B8GP54L51 This vehicle belongs to my parents. I'm trying to diagnose it at home, so I'm pretty limited on what diagnostic tools I have, only a basic Autoenginuity OBDII scan tool and a few other things. The problem it is having is a surge during low speed cruising (less...	View
	1994 Ford E-350 Econoline 7.5L Excessive Emissions, Hesitation, Misfire VIN: 1FDKE30G4R Vehicle has misfire mostly at cruise 2500rpm, you can hear the popping from the tailpipe, no conclusive on ignition scope. output from the distributor (PIP) signal are good. primary igntion control from ICM is good. coil is good, no secondary ignition problem....	View
	1995 Ford Contour GL 2.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FALP6530S 02 sensor at .65v almost always and the car runs real lean and backfires thru the intake when you try to rev it. Checked MAF and it is good compression and valve timing are ok. If you richen the fuel by squirting carb cleaner down the throttle body while revvi... Trouble codes: 172 (o2 not switching), 336 (exhaust back pressure high)	View
	2002 Jaguar X-Type 2.5L Surge, MIL on- no P codes VIN: SAJEA51D22 Hello out there in Jag headache land! I will thank all who will offer help, as I haven't much experience with Jaguar. I hope that some Jaguar experts can help me with this 2002 X-Type. It appears that this vehicle may never pass the Illinois EPA OBD2 emissi... Trouble codes: C1145 (RF ABS wheel speed sensor always present), P0171 (Bank 1 Lean back in January not present now), P0174 (Bank 2 Lean back in January not present now.), P1000 (Typical Ford code for all monitors not ready. MIL not affected.), P1547 (FLight Data recording saved)	View
	2002 Jaguar X-Type 2.5L No Start, MIL Lamp on VIN: SAJEA51D42 Hi, we have this x type with a crank but no start condition! Checked the battery and thats Ok then checked the negative cable/terminal assembly appears to have been replaced recently and contacts to trans and body are clean with no corrosion. We checked all fu...	View
	1999 Mercury Villager Estate 3.3L Excessive Emissions, Poor Idle Quality, Surge, Stall, Poor Fuel Economy VIN: 4M2XV11TXX Hello, I have a 99' villager with 3.3L that was brought to me running rough, poor idle. I checked the obvious and found the fuel pressure regulator leaking badly. Replaced and found still surging. Smoke tested intake system and found Leaking intake gasket, rep...	View
	2000 Oldsmobile Alero GL 3.4L Poor Idle Quality VIN: 1G3NL12E4Y After sitting for hours the engine will idle very high. The idle will rev up to between 2200 and 3000 RPM and stay there. The TPS voltage is steady at .65V at idle whether the problem is occuring or not. If the key is cycled off and restarted, the idle will re... Trouble codes: P0122	View
	2005 Porsche Cayenne Turbo 4.5L Coolant pipes VIN: WP1AC29P15 Hey all - this Cayenne came in with the infamous coolant leak under the intake. I hadn't done one before but there is good info on this issue on iATN. So I replaced the upper three coolant pipes with the updated (aluminum) parts from Porsche. Put the car bac...	View
	2000 Subaru Legacy GT 2.5L Headgaskets VIN: 4S3BH6459Y Hey IATN members I am repairing a friends subaru replaced head gaskets, had heads checked ok cleaned and checked block looks good followed mitchells procedure for torqueing head bolts just fired it up and is burning antifreeze like a bastard and has a misfire,...	View
	1985 Toyota MR2 GT 1.6L head gskt. VIN: JT2AW15C1F Need some info from the toyota guys.car came in missing on #3&4 cyl.comp. test showed 20lbs. comp 0n 3&4,155 0n 1&2 cyls.no apparent coolant loss or overheating,suspect head gskt. blown between cyl. 3&4.Are there any known issues w/head gskts. or cyl. heads?An...	View
	1999 Toyota Tacoma DLX 2.4L overheating VIN: 4TANLY2N8X we have a vehicle that will only overheat at highway speeds normal driving no problems we replaced t-stat and water pump with same results also when vehicle is overheating if you turn heat on with blower motor on, temp cools back down no air pockets, and passe...	View
	2001 Volkswagen Beetle GLX 1.8L No Start VIN: 3VWDD21C01 After replacing the alternator on this Beetle this car would crank and almpost start.It seemed to be flooded and would occasionally start and run on one or two cylinders just enough to not die. While cranking it smelled flooded and would not start no matter wh...	View
	2003 Volvo S40 1.9L Cuts out, Stall VIN: YV1VS27503 Ok everyone i have a bad boy problem. car came into my shop with a stalling issue (ONLY WHEN THE CAR SITS OVER NIGHT) so i scaned the car found the 2 codes and replaced all 3 parts. car left here no problems came back 2 months later with only the p0015 code ag... Trouble codes: P0015	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1993 Cadillac Fleetwood 5.7L Starting VIN: 1G6DW5272P Customer wanted his car to start and was willing to give up the VATS. So I had the option to program the PCM/ECM to remove anti-theft or use a bypass module. I decided on the bypass module which generates the frequency signal normally sent from the CCM to th...	14
	2007 Cadillac SRX 3.6L tpms VIN: 1GYEE637X7 Thanks for the speedy response. I have not been able to resolve the reset problem at this time. The customer has not been able to return due to business issues. When he has time he'll bring it back, I hope to post a repair at that time. Thanks for taking time ...	8
	1999 Chevrolet Cavalier 2.2L A/c vent temp at Idle VIN: 1G1JC5240X Thanks to all that posted, as of now the customer has declined to go further with the repair. Many of you had suggested the condenser fan as a cause of trouble and I had neglected to mention in my original post that it was operation properly. In my past experi...	9
	2000 Chevrolet Silverado 1500 5.3L brake lights VIN: 2GCEC19TOY ok this is fixed, thanks to all who replied. problem was the junction block at rear of truck behind bumper.as always IATN to the rescue.	18
	2000 Chevrolet Astro 4.3L No Start VIN: 1GCDM19W3Y Thank you everyone that helped me solve the problem. I just replaced the ignition cap and rotor and cleaned the spark plug. The car started up. Again, thank you everyone for your time!	27
	2003 Chrysler PT Cruiser Touring 2.4L electric locks,radio,no fuse on display VIN: 3C4FY58B73 To those that offered help thank you very much, the iod fuse had been pushed so hard that it pushed the female receptacle down far enough that it was not getting a good connection. I had to pull the fuse box up and fix the receptacle. Thanks again for the help...	5
	1994 Ford F-150 XL 5.0L Hesitation, Surge, Poor Fuel Economy VIN: 1FTEF15N01 We are trying to replace the VSS sensor now and will post an update to whether that fixed problem or not.	31
	2003 Ford Focus ZTW 2.0L radio VIN: 1FAFP36363 Well sometimes if you wait, the problem cures itself. The customer called and reported that suddenly the radio started to work. So thanks for all the replies and suggestions, have a great day, John	5
	2004 Ford F-150 FX4 5.4L remote start VIN: 1FTPX14594 iATN won't let me add another update so I am closing this post with this as an update. I didn't realize that our MODIS would communicate with the PATS and ICM as it doesn't with most vehicles. I pulled a code B1600 (PATS key transponder signal not received) So...	8
	2006 Hummer H3 3.5L MIL Lamp on VIN: 5GTDN13696 It happens sometimes, when you do all possible tests and dont know what is really happening and after long testing time without finding any culprit... its very simple GO TO THE BASIS AGAIN, most of the times you have skipped something or simply has not take in... Trouble codes: P0171 (System too lean Bank1).	9
	1991 Lexus LS400 4.0L Cooling Systems VIN: 1VSTE43DFR I can not thhank you all enough for your help. I finally was able to pull it back down today (saturday) and the impeller was in great shape...except that it had came loose from the driveshaft. A couple of you hit the nail right on the head with the water pump ...	12
	1997 Mercedes-Benz E420 4.2L check eng lite VIN: WDBJF72F4V all replies stated remove cyl. heads. customer declined repair stating , cost is more than car is worth,thank,s to all who replied	4
	1995 Nissan Maxima GLE 3.0L Misfire VIN: JN1CA21D9S well, thanks to all for your help. Here is the run down. vehicle had a bad miss so the customer apparently tried to fix it themselves, by REWIRING the coils, they actually pulled each wire out of the coil pig tails and moved locations, thus buring up 4 of the... Trouble codes: P1320.	6
	2000 Pontiac Sunfire SE 2.2L front end VIN: 1G2JB5243Y Thanks to all 12 that replied. First, many replied to check the sway bar links and frame mounts. This car DOES NOT have a sway bar! When my son brought this to my attention I had to look for myself! We could not find any play in tie rods, or anything else and ...	12
	1999 Toyota Camry LE 2.2L service engine light VIN: JT2BG22K4X We replaced the purge caniste and valve, many of your responces were correct. Thanks, You guys are workd class. Trouble codes: P0208.	12
	2000 Toyota 4Runner SR5 3.4L MIL Lamp on VIN: JT3HN86R2Y CLEANED MAF - REINSTALLED VACUM HOSES BACK TO PROPER LOCATION (ALTHOUGHT MITCHELL SAYS VACUM SHOULD GO TO REGULATOR, MUST BE INCORRECT) CLEARED CODES - RUNNING FINE - THANKS Trouble codes: P0174 (lean).	17

(Also Available: All, Asian, Chrysler, European, Ford, GM.)