Automotive Technicians Technical Discussion and Fixes for Jul 29, 2006 - iATN (Members Only)

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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
	2002 Acura TL Type-S 3.2L srs lite VIN: 19UUA56872 I need some Honda expertis. SRS lite came on yesterday and after checking fuse went to data link connecter and pluged in my OTC Genisys scan tool. It tells me that no cable is required and manual code retrieval is possable by jumping terminals #4 and #9. Allda...	View
	1988 Cadillac Eldorado 4.5L compressor VIN: 1G6EL1156J agian any help greatly appreciated,there is codes of 446,447 but has pleanty of pressure it was like 96 psi running,reset commpressor (neg. off then back on).works a couple of times then won't,now warm air commpressor won't come on and have b441 cooling fan pr...	View
	1996 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GNDM19W6T 4.3 litre chevrolet miss fire only at idle number 3 and 5 cylinders bring the idle up just a little smoothes out. miss fire goes away? any help out there? please! Trouble codes: P0300 (random misfire)	View
	2003 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1CFCHGVH Following mitchell ondemand flow chartfor P1635. I have 5-volt ref. at egr,tps,map code keeps coming back checked harness found no problem the only runnng problem is high idle intermittenty clear code drops down to norm. And one time while testing i had 6.25v ... Trouble codes: P1635	View
	2001 Chrysler PT Cruiser 2.4L lifters VIN: 3C8FY4BB81 Thank you in advance for taking the time to help me. Customer brought vehicle in overheating diagnosed headgasket problem. performed stated repairs including timing belt water pump seals oil change (5w30)etc. finished job started car allowing to warm up. the v...	View
	2000 Daewoo Lanos SE 1.6L Poor Fuel Economy VIN: KLATB2265Y Hi: I will thanks any help with this problem. This car came to shop because it´s fuel economy is poor 20 mpg in city and 25 mpg in highway. We was checked compression leaks and have only 10% in all cylinders. Exhaust back pressure is only 0.3 psi, and have ne...	View
	1996 Dodge Intrepid 3.5L not power to compressor VIN: Q68301A447 hi, this ac won't work, the compressor clutch is not getting power. If I direct feed 12 volt to it , it works fine. I checked the relay(switched with another) and checked the fuse in the door. Both seem fine. I wondered if anyone knows of a problem area where ...	View
	1995 Ford F-250 XL 7.3L No Start, Hesitation VIN: 2FTHF26F8S Hi there, This my first post so bare with me please. Truck came in with a MIL on and poor running under load. Check codes and found 1211 and 1212. Test drove and when cold truck has a slight long crank time but when hot will not start or takes several trys and... Trouble codes: P1211	View
	1999 Ford Windstar LX 3.8L engine VIN: 2FMZA5142X customer just purchased this van. seems like an internal balance issue, tried a balancer but no change. also there is no sign of a misfire, tune-up items are newer, also no codes. it only vibrates at a low idle and upon accel. it is worse when in gear,also wor...	View
	2001 Ford Taurus SE 4-Valve 3.0L Air from AC vents VIN: 1FAFP55S71 Ford AC EXPERTS 1 year ago we replaced ac compressor\accumulator\orifice tube and line-ac blows so cold the seats get cold!Customer has complained about the AC "crapping out" (his words, not mine-he is smart & educated but when it comes to cars & descriptions....	View
	2003 Ford Expedition XLT 5.4L Power to pcm VIN: 1FMPU16L83 Hi Ford techs, i got this Expedition dumped in my lap and i am not real sure where to go next. I started with testing the battery, cleaned the battery terminals and pcm ground still the vehicle does the same thing, it will make a buzzing sound constantly with ...	View
	2001 GMC Jimmy SLE 4.3L No Start VIN: 1GKDT13WX1 Hope someone can help with this,truck came in for heater core replacement,pretty straight forward,pulled dash,heater module,replaced core. Will not restart,cannot get theft relearned via 3 ignition cycles. Security light never goes off. Cannot communicate with... Trouble codes: P1626, U1064	View
	1999 Infiniti I30 3.0L Poor Idle Quality, Cuts out, Misfire VIN: JNKCA21A0X Hey guys. Have a 99 I30 that is misfiring on #2 and #5. Before I did anything I swapped coils no change as far as cyl goes. Also swapped injectors, no change. I can only get noid light on #2, but it shows a obvious interuption in the signal to injector. It wil... Trouble codes: P0300	View
	2002 Lexus IS300 3.0L No Start, Surge, Cuts out, MIL Lamp on VIN: JTHBD19292 Hello group, I've had a week in hell; posted 3 so far.The complaint was vehicle was struggling and taking off at traffic light very slowly. Scan data reviewed all PID's are within frame, with the exception of TPS, 15.3% & 84.6% (closed and full throttle), had... Trouble codes: P0120 (tps/ gas pedal position circuit malfunction), P0121 (tps out of range)	View
	1989 Mazda MPV Cargo 3.0L transmission reverse VIN: JM3LV5228K Well I am completely out of my element on this one, I really have never been into a transmission so I will need lots of help! Why am I going here you ask, well you guessed it its my daughters car! Here's the problem, the car will not reverse, goes forward just...	View
	1998 Nissan Maxima GLE 3.0L hard start VIN: JN1CA21D7W Customer tried to repair himself. Engine cranks fine. If you crank the engine and release the key a just the right time it will start and runs well. code in the sys were for knock snsr and 02. Replaced knock snsr (was able to see it was physically broken) rese...	View
	2001 Volkswagen Passat GLX 4 Motion 2.8L alternator VIN: WVWTH63B51 I don't usually work on European cars but, have this Passat with a bad alt. Alldata just says to remove bolts and remove alt. Well it isn't that simple, so from someone who has done this how do you get clearance to get the bolts all the way out of alt, and wha...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1998 Acura RL 3.5L abs VIN: JH4KA9651W The car had codes in it with the new computer. The old computer would not give a code. The car had a code for a rear speed sensor. Both were out of spec and were replaced. I put the dash back together while waiting for the wheel speed sensors. I wish I would h...	10
	1997 BMW 540i 4.4L Trunk latch VIN: WBADE5321V We spent an hour or so checking the obvious. No broken/frayed wires at trunk hinge area. We could activate other components with our scan tool like door locks, dome lights etc. By monitoring the wire at the latch that triggers the latch, we saw a brief 12V spi...	5
	1989 Buick Regal Custom 3.1L No Start, run then dies VIN: WD14TXK145 this one took some time. finally we found some chaffed and exposed wiring under the altenator, these wires were grounding out causing a no spark/no start condition. after repairing the wires all is fine. thanks to all of you at iatn.	35
	2000 Chevrolet Corvette 5.7L clutch set VIN: 1G1YY22G9Y Thanks guys for the help.Everything went great.After looking things over a bit I was also able to remove the cradle and drivetrain as an assymbly.I removed the shocks completely,removed the left axle only(brake line clearance)and top ball joints.Unhooked all r...	3
	2001 Chevrolet Astro 4.3L Hesitation, Surge VIN: 1GCDM19W61 When I watched the data stream frame by frame I noticed the rpm would hit 12000 for one frame and then 7000 for another frame. Since the rpm signal comes frome crank sensor and the sensor was new I took a look at the connector and one of the pins was bent and ...	3
	1992 Ford Crown Victoria 4.6L No Start, Cuts out, Stall VIN: WINX207305 I want to send thanx to Nick from Ohio, Trevor from Arizona, Brian from Alabama, and Jerry and Chad from New york for leading me in the right direction. I pulled off the MAF housing and I looked down into the small air hole and found a small bird feather lodge...	14
	2000 Ford Taurus SE 2-Valve 3.0L MIL Lamp on VIN: 1FAFP552XY Well,first let me say thanks to Jim, Bradley,and Tom [...].;the three guys who responded.Jim probably had the best suggestion[add a ground],but as I had said,there was no voltage drop problems on the power or ground circuts[checked them all the way to the pump onc... Trouble codes: P1237.	4
	1995 GMC K2500 Suburban 6.5L MIL Lamp on VIN: 1GKGK26F1S Just wanted to make sure this was fixed before posting. First of all, I want to thank my untrusty MODIS for leading me down the wrong path. I stated my ECT was 304deg and IAT 297deg, and both never changes. Yet when ECT is unplugged pcm compensates. I went int... Trouble codes: 78 (wastgate solonoid).	3
	2001 GMC Yukon XL 1500 SLT 5.3L tensioner VIN: 3GKEC16T71 Thanks to all who replied. The problem was the compressor as many suggested. However, the customer took it to another shop for the repairs. Glad I spent the time to research the problem for them for nothing. I'm sorry I wasted y'all's time.	24
	1994 Mercedes-Benz E320 3.2L Mechanical VIN: WDBEA32E8R Sorry for the delay Cam timing was off. advanced 8 dergrees. Enough so the intake vavle would slightly hit top of pistons. Engine vavle probly would have been ok. I had no leak down throu cylinders, but replace intake vavle anyway. My luck intake head would ...	9
	1995 Pontiac Grand Am SE 2.3L Stall VIN: 1G2NE15D5S Thank-you one and all. Most replies refered to the ECM/quad driver problems.We were testing the o2 sensor voltage from the ECM.Should see a steady 300-450-mv.We were seeing 600 to 900.Then the engine coughed and stalled.Started the the engine back up and it ru... Trouble codes: 45 (rich).	7
	2001 Pontiac Grand Prix GT 3.8L Stall VIN: 1G2WP52K71 Dear techs; Sorry I have been so long in closing this post, I see its a month now. The reason I was waiting was to see if the car acted up again. I have not heard from the owner since a day or so after I posted the request, so I guess the fuse never blew again...	7
	1993 Toyota Camry LE 2.2L Poor Idle Quality, VIBRATION AT IDLE VIN: JT2SK12E6P In closing this post I want to thank all that took the time to reply to this issue. The toyota vibration will remain a mystery for the time being :( The engine mounts seemed to be operating properly, I had 'reset' or moved them all three times and even tried...	22
	1994 Toyota Camry LE 3.0L struts ? VIN: 4T1GK12E9R I would like to thank all those who replied. I replaced the upper strut mounts , making sure to get the strut shaft into the groove under the mount,as many suggested. The old mounts didn't look bad though it did the trick. I also lubricated the steering couple...	16
	1997 Toyota Camry CE 2.2L No Start VIN: 4T1BG22K5V Hey, thanks for all your help. We got the computer in and that fixed it. A nervous crank, I'll tell you what. I received good responses with good ideas. I was unaware of how important the igf signal was or how easily it could pertain to this specific issue, it...	6
	1998 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRA81H6W found weak vac supply to ldp . re hosed and clamped all sources and a- ok thanks for your input guys !! Trouble codes: 440 (evap malfunction), 442 (evap small leak).	4
	2001 Volkswagen Beetle GL 1.9L brake booster VIN: 3VWCF21C0Y Thank's to everyone who replied. Most everyone said it is the booster so we have ordered one and are currently trying to locate the tool to remove the clip from the pedal to the booster. I suspected the booster but really couldnt find the 'smoking gun' proving...	12
	2003 Volkswagen Jetta TDI 1.9L engine VIN: WVWCE63B05 Boys,boys, boys, we have success. Thank you first off for the serios admonishment to Bill Bennet for kicking me in the direction of the fuel supply. Fred [...] also sent me towards the fuel. But some folks sent me towards the bodyshop work area. You guys r...	13

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