Automotive Technicians Technical Discussion and Fixes for Apr 29, 2011

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	Help Request	Answers
	1990 BMW 735i 3.5L Starting VIN: WBAGB4318M this bmw does not shut off when key is removed . Removed ignition switch , still running . Lock cylinder is working fine . The ignition switch has 4 large wires going to it . Red , purple , green , black/yellow . Found that the green wire is shorted to power ....	View
	2000 Cadillac Catera 3.0L All Lights VIN: W06VR54R0Y We installed a new crank sensor and battery on this Cadi last week after it had been sitting for a year. The car runs great but the lights inside and out flicker fast and flash when you unlock the car, when using the key or the remote and they stop after a sho...	View
	2003 Cadillac CTS 3.2L transmission VIN: 1G6DM57N13 im trying to find documentation on the last 3 codes found on my snap on verus updated to 11.2 according to our repair program (mitchell) we need to diagnose the other codes first before starting on the 1719, which starts to condemn the trans control module. ha...	View
	1974 Chevrolet K10 Suburban 5.7L forword clutch VIN: 4564854854 got this thm 350 transmission that was bought from summit had less then 500 and the forword clutch burned up everything else had little or no wear. woundering if anything special shuld look for when overhaul? thanks in advance.	View
	2000 Chevrolet K3500 5.7L lacks power VIN: IGBJK34R7Y vehicle intermittently boggs down looses power, when this happens ignition timing goes to 250 when it runs good again goes back down to normal. unplugging vehicle input speed sensor at transmission solves problem, tried new sensor to no avail. please help	View
	2003 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J33 Hello techs and thanks in advance; I have this customers car that intermittently will not start, have seen it fail once on my lot but did not look at the theft light on the dash, i do know that I had no spark when cranking and did not hear the fuel pump come o...	View
	2005 Chevrolet Express 2500 4.8L Temperature gage VIN: 1GCGG25V75 when I start the van the temp gage works then in a matter of seconds it will drop down to like it dont work the ect says 196 but the icp says monitored temp 99 and so displayed is 99 so the gage seems to be working it will sweep and during the sweep it reads c...	View
	2006 Chevrolet Silverado 1500 LT 5.3L Cooling fans VIN: 2GCEK13T06 Truck came back with cooling fans stuck on low. Rescanned P0480 reset (low speed cooling fans circuit), Can command low, med, and high speed fans both on and off. Both left and right fans run on low speed with key off only. If key is cycled to on fans turn off...	View
	2007 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on, Goes into limp mode VIN: IGCHC24K67 My fellow IATN members, I am hoping you guys can help me with this problem truck in my shop. This truck has been in 2 times for this problem. The first time it was in the truck was not showing and symptoms of a problem except the MIL illuminated. After testing... Trouble codes: P2134 (App 12 correlation)	View
	2003 Dodge Neon SE 2.0L Hesitation VIN: 1B3ES56C73 Car came in, booging down when acceration, Ck TPS, exhaust system, replaced CAT, O2 & fuel pump, Ck timing belt align good, no codes, did all basic check, any body has any ideas please advise, thanks.	View
	2008 Dodge Grand Caravan SXT 3.8L oil consumption VIN: 2D8HN54P98 This is one of my pesonnial vehicles engine is using about a quart of oil in 500 miles. I had a service plan for 36000 miles so i never changed the oil myself, once i started changing it myself i noticed it was using a quart every 3000. Now at 55000 it is to t...	View
	1992 Ford Ranger Custom 3.0L MIL Lamp on light on, good idle, idle flare when shift into d or r, good run, no converter lock up. light off(intermittant) lopey idle, good run,no flare on shift into gear, lockup works. note that idle has been lopey since purchase 4 yrs ago but no mil on or dirveability... Trouble codes: 57 (Neutral pressure switch no octane switch)	View
	1994 Ford Ranger XL 4.0L cooling syster VIN: 1FTCR15XXR Hello, the truck had a new water pump and thermostat installed by another shop. Coustomer stated after the repair the temapture would go up and down quickley on the gauge. He replaced his own raidator and flushed the system and no luck. Our shop saw the cts te...	View
	1996 Ford Ranger XL 3.0L suspension VIN: 1FTCR14U2T When braking hard it feels like a dull thud inside the truck and can be duplicated by hitting the brake and releasing at road speed. I suspect a ball joint on the right side, but I am not sure	View
	2000 Ford Expedition XLT 4.6L Will not turn off VIN: 1FMRU1563Y Customer stated would not start (Battery dead). Jump started. After started windows inop and could not turn off (engine continues to run with ignition switch off). Installed known good GEM and fuse block. Now windows work but still will not turn off. Unplugged...	View
	2000 Ford Focus SE 2.0L #F8 30AMP maxi fuse VIN: 1FAFP3438Y This vehicle came in for a no crank no start. I noticed it had acessory power, but no dash lights or exterior lights.Upon inspection i found the #F8 30 amp maxi fuse for ignition to be blown. I also found the positive battery cable insulation burnt at the batt...	View
	2005 Ford F-250 Super Duty XLT 5.4L locks up VIN: 1FTNF21575 customers states when turning left steering locks up can't turn. didnt seem to do before repairs i haven't been able to get the problem to happen to me not sure if pump is weak? ball joints seem fine can turn by hand on hoist Thanks for any help	View
	2002 GMC C-Series Topkick C6H042 8.1L Service Brakes VIN: 1GDJ7H1E92 Hello all, this one is for the HD guys out there...and I'm stuck! After all that was replaced (please see above) there is still no activation of the service parking brake, this is the type with the drum on the driveshaft, and the PCBM shows no codes (00). I ca...	View
	2003 Honda Accord LX 2.4L Misfire, MIL Lamp on VIN: 3HGCM56303 Dead miss on #1. Replaced plug, no change. Coil fires to ground. Swapped #1, #2 coils, miss did not follow coil. Compression 175 on #1 and #2. Observed piston movement #1. Noid light flashes for #1. Removed fuel rail and cranked engine, all injectors spray equ... Trouble codes: P0300 (Random misfire), P0301 (1 misfire), P0303 (3 misfire), P0420 (Catalyst efficiency)	View
	2002 Hyundai Elantra GLS 2.0L Poor Idle Quality VIN: KMHDN45D42 I scanned and found a p0340 cmp ckt malfunction. I checked camtiming marks and found camshafts one tooth off. realigned per tsb of updated cam gear marks. car ran better but still had p0340 and rough idle. checked cam sensor power and ground good 12v and 0.01m...	View
	2004 Isuzu Rodeo S 3.5L Misfire VIN: 1S2DM58Y14 Vehicle came in with #3 misfire. Diagnosed as bad #3 injector. Replaced inj. and it ran fine for about [...]. Came back with #4 misfire, also diagnosed as bad injector. On test drive after replace #4 inj. #5 started missing. Low line fuel pressure seems to ... Trouble codes: P0303 (3misfire), P0304 (4 misfire), P0305 (5 misfire)	View
	2002 Lincoln Continental 4.6L Ride Control VIN: 1LNHM97V32 Hope you guys an give me some help on this one. Got a 02 continental dropped off with customer complaint of air ride not working. Pulled codes and got a low battery voltage code. Did charging system check and found alternator output at 13.00 volts. Replaced al...	View
	1990 Mazda B2200 2.2L engine VIN: JM2UF3137L When started cold, doesnt smoke for 8-10 secs. Then blue oil smoke continuosly. Volume of smoke increased dramatically with RPM increase. All plugs were fouled when inspected. Did leakdown test on #1. Rings were solid. Have seen one of these before on same typ...	View
	2003 Mazda Miata LS 1.8L MIL Lamp on VIN: JM1NB35373 Could really use some help, This mazda has been in twice for the same code the frist time we replaced the crank sensor. Car was good for couple weeks but keep in mind its not driven much.CEL back on Customer pulled code P0340 and tryed replacing the crank sens... Trouble codes: P0340	View
	2004 Mazda 3 i 2.0L Power Locks VIN: JM1BK32324 Hi there everyone and thanks for the help on this one. I have this 04 mazda 3, four door in and the concern is that the power locks will not lock with the remote(factory RKE) or with the switches. None of the lock actuators lock. The doors will unlock using bo...	View
	2004 Mercedes-Benz E320 3.2L Vibration VIN: WDBUH65JX4 We checked for codes , no codes , we checked motor mounts ,they look and feel ok, front balance pulley is little wobly. Is there any one who had similar problem with this engine ,this is m112.also what other things are knownto cause vibrations for this car. Al...	View
	2002 Mercury Mountaineer 4.0L blows fuse#20 VIN: EM2ZU86K62 This is a repost, never located problem thought by now somebody might respond with answer to my nitemare.It has gone 5 months without blowing and has blown right away. Suspect drivers door jamb harness, gem module,interior fuse box(bjb) kick panel/ ebrake area...	View
	2005 Mitsubishi Lancer Evolution 2.0L Transfer Case VIN: JA3AH86D75 Hi, I need help finding out what type of fluid the ACD takes. We changed the transfer case and now we need to fill the ACD. The reservior cover say ATF SPIII, is that Dex III? Thanks for your Help!	View
	2003 Nissan Xterra XE 3.3L Lights VIN: 5N1ED28Y93 I am a Toyota and VW specialist. This is owned by one of my VW customers. Symptoms are Key off and out of the ignition, interior idiot lights will come on and fade in and out. These include the MIL, Brake and Charge lights. Also the Passenger side marker and f...	View
	2001 Toyota Celica GTS 1.8L MIL Lamp on VIN: JTDDY32T51 What are the readings supposed to show for the MAF sensor... gm/s for idle, acceleration and snap wot? According to All Data the front 02 sensor needs to alternate above .55v and then below .4v. The reading did not always go above and below those values, does... Trouble codes: P0171	View
	2004 Volkswagen Jetta TDI 1.9L Misfire VIN: 3VWRR69M64 VW tech's i need help please! Deisel 1.9 . Runs rough and has huge amounts of exhaust coming out of the butterfly flap where the intercooler hose hooks up on manifold, that's the passenger side, right by the timing belt cover. It sounds like a machine gun goin... Trouble codes: 16791 (Egr sensor circuit b low), 16683 (Turbo underboost)	View
	2008 Volkswagen Jetta GLI 2.0L Transmission VIN: 3VWBJ71K18 Hi all. I've got a very very strange issue with this '08 GLI we got in for service. The vehicle behaves normally until it's warm - once it warms up it emits an EAR PIERCING screeching sound from between the transmission and engine. I used a stethescope with ...	View
	2006 Volvo S60 R 2.5L Temp Guage VIN: YV1RH52726 Need to know what wire to test for to check the signal to the temp guage from the ecm. Looked at alldata wiring diagram and do not see anything specific	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2001 Audi TT Quattro 1.8L No Start VIN: TRUWC28N11 Thanks for everyone's input, the Engine Control Module had failed. Replaced the Module and all is well. Trouble codes: 00778 (Steering angle sensor), 01314 (No comunication with engine control module).	6
	1993 BMW 318i 1.8L engine VIN: WBACA5316P There were replies to check oil pressure, that was done and as stated the oil pressure was within specs, another said to check the crank case breather but this early 1993 model does not use one. I had already sprayed soapy water at the front and rear main seal...	7
	2004 BMW 330Ci 3.0L active steering VIN: WAUBMW1234 A special thanks to all who responded to my request for information on this system. I had the customer bring his car back in to recheck. I had read his owners manual and it showed an available active steering system and explained that it worked at low speeds. ...	5
	1997 Buick LeSabre Custom 3.8L Mechanical VIN: 1G4HR52KOV Well concenus among most of you is something inside of transmission case linkage or rod weld is broke.Car now has progressed to never staying in park position.Car was sent to transmission shop for repair.Mike	6
	2006 Cadillac CTS 2.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1G6DM57T56 Thanks for all the info guys. Thank you John from NJ for reminding me to check what the rear o2s were doing while I was enriching and leaning the mixture, it verified that the rear o2s weren't biased towards the rich side. After I cleared the codes again, the... Trouble codes: P2096 (Post Catalyst Fuel Trim System Low Limit Bank 1), P2098 (Post Catalyst Fuel Trim System Low Limit Bank 2), P2177 (Fuel Trim System Lean At Cruise Or Acceleration Bank 1), P2270 (Heated Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Lean), P0300 (Mult missfire).	6
	1998 Chevrolet C1500 Suburban 5.7L Starting VIN: 1GKFK16RSX well thank you all we did finish this project turns out the machanic broke an ear on the distributor so we replaced the distrib set the timing she runs like a champ thank you again Brian	16
	2001 Chevrolet Tahoe 5.3L Readiness codes VIN: 1GNEK13T81 Thank's to all, Well after doing everything suggested,and driving the thing about 150 miles,the sec .air code set so I was able to smog it with just the e-vap code pending. It passed smog with fly'n colors! thank's G.T.	5
	2004 Chrysler 300M 3.5L Vent System VIN: 2C3HE66G74 First i would like to thank you for all your help,this web site is very helpful and friendly.I replaced the body computer and recalibrated the vent system works like new.thanks again and god bless!	4
	2005 Chrysler Pacifica 3.5L No Start VIN: 2C4GM68455 I did a compression test this morning and found 0 compression on all front cylinders, performed leak down test and found 20-70 % leakage. Thanks.	8
	2006 Chrysler 300 C 5.7L Electronic VIN: 2C3LA63H86 Well, nobody has an answer as to how it is possible to install the complete abs pump/valve body/module and have the vehicle operate correctly but installing only the abs module it sets configuration codes and vin mismatch codes. When I get the old module and a...	10
	1995 Dodge Dakota SLT 5.2L no speedo VIN: 187GG23Y5S Hi to all and thanx for all the help it was driving us crasy. We found the issue as it turned out that the ground wire from ECM was rubbing against the four wheel drive shift leaver and taking away the signal. Repaired the wire and now the truck is better. ...	10
	1950 Ford F Series 3.9L Hesitation VIN: 98RC455082 thanks all for your replies customer brought in original manifold and carb installed and problem is gone.Apparently the stock cam cannot move the air volume from 2 demons thanks every body	15
	2003 Ford Escape XLS 3.0L MIL Lamp on, No speedo VIN: 4F2CZ96193 Thanks to all who responded. Problem was broken wire from oss to pcm. repaired wire, all is ok. Trouble codes: P0720 (Output speed sensor ckt), P0722 (Output speed sensor no signal), U1041 (Scp invalid data for vehicle speed), U1123 (Scp invalid for odometer), B1352 (Ignition key-in circuit failure).	6
	2005 Ford F-150 FX4 5.4L mode door control VIN: 1FTPX14565 this is a late design with a single actuator. had to remove HVAC housing and replace mode door asmbly. the doors and pivot axles were all warped and twisted giving out of range feedback voltages.with new asmby.and actuator feedback voltage is panel=4.12v and d...	3
	2006 Ford Explorer XLT 4.0L tirepressuremon VIN: 1FMEU73E26 Thanx to all for the help but i havent got the truck back yet.I will let you know as soon as i do thanx again everyone	11
	2008 Ford Expedition XLT 5.4L GEM Module VIN: 1FMFU16568 Yes it's fixed. My boss asked me if I tried the code erase procedure from the owners manual. I said no, I assume the dealer techs did that first thing as that would be the fastest and most obvious thing to do. Well they must not have because we did that and th...	8
	1997 GMC K2500 Sierra SL 5.7L Entire System VIN: 1GTGK29R6V Hello everyone. This vehicle is not yet fixed. At least not to my knowledge. I had to go in for emergency back surgery a week ago and had to pass the vehicle on. Last I heard it was a little better, but they still couldn't get the issue fixed. Thanks to every...	19
	2004 Honda Accord EX 2.4L passenger window VIN: 1HGCM72274 Well the motor was bad as i stated in the post, but what i dont understand and what screwed me up is when i gave power to the switch and depressed it up or down there was source voltage at the motor harness with the new motor hooked up it still didnt work. So ...	10
	1995 Infiniti G20 2.0L Hesitation, Surge, Cuts out, Stall VIN: JNKCPO1D8S THANKS TO EVERYONE THAT POSTED INFOMATION TO ME ON FIXING THE PROBLEM. IT WAS A WEIRD ONE ON THIS CAR. I HAD TO LAUGH WHEN I FOUND IT CAUSE I NEVER HAD SEEN IT BEFORE LIKE THIS. THE PROBLEM WAS A SLIGHT CRACK IN THE VACCUM HOSE FROM THE INTAKE TO THE BRAKE B...	8
	2004 Kia Sorento LX 3.5L No Up Shift VIN: KNDJD73323 Thank You for all your help,it was a blessing!I found the tps sensor was reading half throttle at closed throttle.I replaced the tps SHIFTS GREAT!!! THANK YOU AGAIN!	6
	1992 Mazda Navajo LX 4.0L No Start VIN: 4F2CU42XON well found out that it was the eec power relay and a old alarm relay that was still active cut the relay out and ran it straight thank u all. p.s this year model did not have a cam sensor/dist sensor	6
	1997 Mazda Miata 1.8L no monitors run VIN: JM1NA3530V Thanks to everyone who responded. After 65 miles of driving they finally set. Can't tell you why...	6
	2003 Mazda Tribute ES 3.0L MIL Lamp on, Od light flashes VIN: 4F2CZ96193 Thanks to all who responded. problem was broken wire from oss to pcm. repaired wire, now all is ok. Trouble codes: P0720 (Output shaft speed sensor ckt), P0722 (Output speed sensor no signal), U1041 (Scp invalid data for vehicle speed), U1123 (Scpinvalid for odometer), B1352 (Ignition key-in ckt failure).	3
	2004 Mazda 3 i 2.0L 3rd-4th gear VIN: JM1BK32324 Hi there and thanks to those that responded and gave me some info. We disassembled the trans and found 3rd gear ground off badly and the reason it would not pull down into 4th was because metal from 3rd gear had gotten into the synchro slider and stopped it f...	3
	2001 Mercedes-Benz E320 4Matic 3.2L Srs VIN: WDBJF82J01 Seatbelt pretensioners were rebuilt by a company called My Airbags.com. The module was replaced with a new one and was coded by MB. All codes are gone and SRS system is working fine.Thanks to all that helped.	8
	2005 Mitsubishi Galant ES 2.4L srs VIN: 4A3AB36F15 Thanks to all who replied. Mark had it right. It turned out to be the srs module. This car belongs to a used car lot and they got a used one. Put it in, no programming needed, cleared the codes and all is well. No more air bag light, no more codes. Thank...	10
	2004 Nissan Sentra S 1.8L heat VIN: 3N1CB51D44 Thanks to everyone who replied this was the first time I placed a request on IATN and it was a big help. I reinstalled cam sprocket without chain applied air to port and locked in advanced position, checked timing to make shure it was good and vehicle started ...	5
	2004 Nissan Sentra 1.8L Misfire VIN: 3N1CB51D34 Well we had two problems, the first was one tight exhaust valve. the machine shop was supposed to perform the valve lash adjustment when performing the valve grind (we paid for that service) after checking the valve lash, we found several out, so ordered shims...	12
	2005 Nissan Altima S 2.5L 1-2 Shift VIN: 1N4AL11D35 We pursued the bulletin that identifies a problem with the ground wire on the pressure control solenoid, unfortunately that didn't help so we have identified the issue as an internal valve body concern that will require replacement of the valve body. At this ...	5
	1995 Oldsmobile Achieva S 2.3L Mechanical VIN: 1G3WS52K4W thanks for all the replies, i just found a 1994 2.3 sohc engine and did a head swap to the dohc head and it works perfect	7
	2001 Other Ford Fleetwood 6.8L engine VIN: 1FCNF53S2Y WE NEVER GOT THE BOTTOM OF WHAT CASE GROUND WAS , I DON'T GET THE TIME I WANT TO SPENT ON CARS LIKE I , USE TO , SOME TIMES ITS NOT WORTH THE HASSLE MY TIME IS WORTH MORE THAN THE MONEY , MUST BE A DEALER PROBLEM LOL LET THEM REPROGRAM THE DAM THING!	6
	1983 Other GM DMC 2.8L Clutch Master Cylinder VIN: SCEDT26T9D Thanks for all the replies, (humorous, or helpful as the case may be... wink), We ordered and installed new clutch hydraulics from Delo... I also gave him a long list of preventative maintenance items... Cheers, Andrew	5
	2003 Volkswagen Beetle GLS 1.8L Linkage VIN: 3VWCK211Y1 After several more hours of studying the trans it was finally realized that the piece was the retainer/holder for the temperature sensor on the valve body. Was definitely something that had us sweating but glad to have it figured now. VW PLEASE quit being so s...	3
	1990 Volvo 740 GL 2.3L No Start VIN: YV1FA8855L A new O.E. Volvo crankshaft position sensor fixed it. What threw me off here was that the onboard diagnostics (mode DTM 2) indicated that the crank position sensor was good. I ran this test three times and each time the system flashed 3-3-1 which indicates ...	13
	2002 Volvo S60 2.4T 2.4L Engine Block VIN: YV1RS58D12 Thank you to all that replied. Well, all the responses had the same recommendations , to replace the engine. This is what we recommended but the car was not repaired, off to the salvage yard.	5

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