Automotive Technicians Technical Discussion and Fixes for May 7, 2013

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	Help Request	Answers
	2004 Audi A8 Quattro L 4.2L cat VIN: WAUML44E84 Can anyone confirm that you must lower engine and trans on this A8 to change the catalytic converters ?? Any help would be great. Thanks,Joe	View
	1998 BMW 318ti 1.9L ses light on VIN: WBACG8325W This is my personal toy and I am just looking for a spec. I could not find it at alldata michell identafix or bmw. I need to find the resistance of the solenoid on the fuel regulator so I can fool the DME into thinking it is still there. Any one that has one o...	View
	2005 BMW Z4 2.5i 2.5L blower motor VIN: 4USBT335X5 hello,ths Z4 came in with no blower motor operation and the compressor will not come on.It has code 255 [unkown description] in ac control unit.The power stage and blower motor are defective and I need to know the correct procedure and flat rate time to give m...	View
	1991 Chevrolet Camaro RS 3.1L No Start, Stall, MIL Lamp on VIN: 1G1FP33T9M Tow in-- Camaro usually starts but will not rev up. Usually no service engine soon light or security light flashing. Scan for codes right off trailer--no codes, Scan data don't see anything out of normal. Suspect fuel pump. Install MAC pressure checker find in... Trouble codes: 46 (Vehicle security system)	View
	1999 Chevrolet Malibu 2.4L Fuel gauge VIN: 1G1ND52T2X Installed new fuel pump assembly in customer's car back in December. Car has been running fine and still runs with no issues. However customer states he got gas over the weekend and after driving about 20 minutes after filling the tank up the dash chime sounde...	View
	2004 Chevrolet Avalanche 1500 Z66 5.3L oil pan VIN: 3GNEK12TX4 Customer complaint; oil leak.Pan gasket leaking & was replaced with customers consent. New gasket leaking. This gasket was then replaced with 2ond gasket(assuming it was defective.The pan had been cked for surface flatness with precin straight edge & was found...	View
	2004 Chevrolet Classic LS 2.2L Air Bag Light VIN: 1G1ND52F34 Hoping to get some programming advice here. I received this vehicle to program the air bag module. I couldn't get it to program. I suggested a new RCM instead of the junk yard one that was installed. Did the 10 minute set up in which I am using the Tech 2 but ...	View
	2005 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12FS5 Came in with ck. engine and traction lights on. Poor performance. Cleared light and test drove. All good until 39 MPH then starts running porly and light back on. Looked at scanner data and TPS reading was fluctuating all over the place. Great I thought, a bad... Trouble codes: P0122 (TPS circuit A low voltage)	View
	1999 Chrysler 300M 3.5L Engine VIN: 2C3HE66G0X Have a car that got towed it the other day complaining of noise from the engine. Started it up, sounds like valve train noise or maybe timing chain it is definatly coming from top end. If you rev it up it will do some poping through the intake. It's to the poi...	View
	2003 Chrysler Sebring LX 2.4L transmission VIN: 1C3EL46X63 Customer came in with leaking TCM on side of transmission...erratic shifting and P0700 stored in ECM. Quart low on fluid, replaced TCM, customer returned 4 days later...did not act up for us, but code was stored for P0700 and transmission stored P0888 for rela...	View
	2000 Dodge Dakota SLT 3.9L Unknown VIN: 1B7GG2AX2Y Hello and thank you fellow tech's for takeing time to read this post any help will be welcom. I'm working on on this 2000 Dodge Dakota.The customer brought the truck to me and said nothing on the cluster worked. I found the entire cluster was not working no gu...	View
	2006 Dodge Charger SRT8 6.1L pass air bag VIN: 2B3KA73W36 Code B223D comes on at random. We replaced the R/F seat occupant sensor and then module. Both times our local dealer did a recalibration. 3 weeks later the came back. Has any one been here?	View
	2010 Dodge Avenger SXT 2.4L No Start VIN: 1B3CC4FB0A The starter will not activate, There is no communication with the scan tool. It seems like the TIPM is the problem with the no communication. I think there is supposed to be about 2.5v on pin 6 & 14 of the aldl connector, indicating that there is TIPM action. ...	View
	2004 Ford F-150 FX4 5.4L Drive-axles VIN: 1FTPX14504 Hello all; This truck came in with a noise complant when turning.It took me about 5 test drives to get it to do it but from the right front wheel there is a scraping noise sometimes while turning under a load but goes away as soon as you put it in 4 wheel driv...	View
	2005 Ford Explorer Limited 4.6L reverse have this 5r55w and when engaging reverse it is fine. when you accel it breaks free. sometimes it will hold and you can power brake and then it breaks free. I have been into the trans 4 times- there is no damage to the band or drum- I originally replaced the f...	View
	2005 Ford E-450 Super Duty 6.0L Degas tank & Radiator VIN: 1FDXE45P55 Hello, Let me start by saying there is some white smoke from the tail pipe after its been run and restarted after a 15 min shut down. Also there is coolant coming out of the Degas tank as it over heats. I am familiar and have done a few EGR coolers and I think...	View
	2007 Ford F-150 XLT 5.4L Convertor VIN: 1FTPW14V07 Truck returned to replace t-case input seal,customer said trans was not right again,rechecked fluid,1 pint low went on test drive with customer,feels like converter is going in and out of lockup,only does it under very light load,if o.d. Is turned off truck is...	View
	2002 GMC Savana 2500 5.7L No Start, Hesitation, Cuts out, Stall VIN: 1GJGG29R82 stalls out since i replaced crank sensor,replaced distributor ,cap,rotor,coil same results inj stay wide open when slightly accelerated to 11-13 o2 sens go rich all the way and pcm tries to lean out the max and engine dies please advise Trouble codes: P0335, P0172, P0175, P0706	View
	2001 Honda Civic LX 1.7L Electronic VIN: 2HGES16521 Thanks to all, I have a 2001 civic with no a/c. Compressor clutch and fans not running. If I jump the relays all components are working. I tried jumping the pressure switch and still nothing. All fuses are o/k, all relays o/k. thermal switch is o/k. I checked ...	View
	2004 Hyundai Santa Fe 2.4L Mechanical VIN: KM8SB12B84 Performed road test and determined excessive engine vibration above 2500 rpms which increases as engine rpms rise. Customer states that timing belt service has yet to be performed, however I have read that incorrect oil pump sprocket timing can cause this issu...	View
	2004 Infiniti G35 3.5L Poor Idle Quality, MIL Lamp on VIN: JNKCV51F14 Hey guys, I have have been using iatn for years and this is the first time i have needed to post for help! We got this vehicle from another shop who had replaced the motor due to the motor seizing up. The junk yard motor that the other shop installed was misfi... Trouble codes: P0171 (Bank 1 Fuel injection system too lean)	View
	2004 Land Rover Range Rover HSE 4.4L Air ride VIN: SALMF11424 having a problem with the air ride suspension.. Springs stay pumped up for days, until you drive it on the highway. as soon as the vehicle lowers itself to highway height, air susp inactive light comes on and the right rear corner will gradually sink. Can clea...	View
	1993 Lincoln Mark VIII 4.6L Misfire VIN: 1LNLM91V2P We currently have no access to a functioning engine analyzer/oscilloscope to monitor the misfire concern under light load. Vehicle fuel trims are at ltft 6% and stft 0-3%. All tests performed and repairs have resulted in the same symptom. Symptom only occurs u...	View
	2000 Mercedes-Benz S430 4.3L Stall VIN: WDBNG70J0Y We have a S430 that instantly trips a P0100(mass air code).We of course replaced with Bosch unit.Code comes back instantly after clearing and starting vehicle.Customer stated that another shop replaced mass air 2 years ago twice with in days.From what I could ... Trouble codes: P0100	View
	2007 Mercedes-Benz S550 5.5L Battery Light VIN: WDDNG71X77 I've checked for power everywhere and anywhere you hook its 13.8. Voltage does not drop. Both batteries are operating good and the alternator stays charging. If I clear the code the light disappears and will return within minutes. In date stream it also show...	View
	2002 Nissan Frontier SE 3.3L MIL Lamp on I have a 2002 Nissian frontier with a 3.3 engine setting a code p1490. Have tested voltage at terminal 1 of cut valve solenoid and continuity from terminal 120 at ecm and terminal 2 of cut valve solenoid. New valve clicks when commanded by scan tool. Checked c... Trouble codes: P1490	View
	2008 Nissan Titan SE 5.6L No Start We have a 2008 Nissan Titan Se 5.6 V8 with an intermittant no start. It seems to do this more often when the vehicle is hot, you then shut it off and try to start, and it cranks, but doesnt start. You can sit there and try multiple times to crank it over, and ...	View
	2002 Pontiac Grand Prix SE 3.1L Excessive Emissions, Misfire, MIL Lamp on VIN: 1G2WK52J32 Came in with a p0420. Replaced cat, came back aprox 500 mi later with same code, replace cat again with a OE unit, and new front and rear O2's. Back again with p0420 and p0300 after aprox 50 mi. Cyl #4 has a very slight miss, cant feel it but the verus is show... Trouble codes: P0420, P0300	View
	2003 Saab 9-3 Linear 2.0L Excessive Emissions, Stall, Poor Fuel Economy, MIL Lamp on VIN: YS3FB49S73 Help on this Saab. After the car runs for about 20 minuets, at about 210 deg the close loop message switches to open loop fualt, set codes p0245 turbo boost valve open or shorted, p0201 injector 1 open or shorted, p0202 injectot 2 open or shorted, p0203 inject... Trouble codes: P0245 (charge air control valve open or short to ground), P0201 (Inj 1 circuit open or short), P0202 (Inj 2 circuit open or short), P0203 (Inj 3 circuit open or short), P0204 (Inj 4 circuit open or short)	View
	2006 Saab 9-3 2.0T 2.0L master cylinder VIN: YS3FD45Y36 This car came in for an inop brake light I repaired the wiring to the right rear light board and upon driving the car out i noticed the brake pedal fading while resting my foot on it lightly. Customer says she had never noticed this. I flushed the brake fluid ...	View
	2007 Saturn Ion-2 2.2L Cuts out, MIL Lamp on VIN: 1G8AJ55F77 This vehicle presented with a customer complaint of low power and a check engine light on. The two codes above were retrieved. The service manual says that P2127 will set if the signal voltage goes below 0.13v for 4/10's of a second. This code has set for the ... Trouble codes: P2127 (App sensor ckt 2 low volt)	View
	2005 Scion tC 2.4L Poor Idle Quality, Misfire VIN: JTKDE17795 Hey guys, I feel like this one's staring me in the face and I just can't get it. It has a random miss at idle that affects all cylinders and the kicker is it goes away and PURRS when I add 20% injector volume on my scanner. Lean miss, right? No specific cylind... Trouble codes: P0300 (p0301-), P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304	View
	2006 Subaru Legacy 2.5i 2.5L MIL Lamp on VIN: 4S3BL62626 first thanks to all who help. have a 2006 legacy 2.5i non u5 engine,non turbo. have code p0500 vehicle speed sensor "a" and I cannot find any diag procedure for this code on alldata or on the web. test drove vehicle and speedo works but will set code if cleare... Trouble codes: P0500	View
	1999 Volkswagen EuroVan MV 2.8L Hesitation, Misfire, MIL Lamp on VIN: WV2MH2704X Thank all of you in advance for your time and input! One of our customers is in the car flipping business and brought us this van to go through. When we first got the van we found the engine started right up but missfired badly on cylinders 1 and 6. We repla... Trouble codes: P0300 (Random cylinder misfire), P0301 (Cylinder 1 misfire), P0303, P0305	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2003 BMW 745Li 4.4L Electronic VIN: WBAGN63423 Thanks to all who took time to read and respond. 1) The E-Box fan was faulty due to water intrusion. The drain in the box was clogged. 2) Replacing the ABS module corrected the brake lamp issue (lights staying on). This module we thought would need to be prog...	9
	2001 Chevrolet Venture LS 3.4L Stall, MIL Lamp on VIN: 1GNDX03EX1 Thanks to everyone for the help. We replaced the cam sensor and the customer reports trouble free driving since. Trouble codes: P0341 (Cam pos sensor).	15
	2002 Chevrolet Silverado 1500 4.8L exterior lighting VIN: 2GCEC19V82 This one turned out to be simple repair.I checked all grounds except one!The actual frame was not gounded.I found when I checked fuel pump voltage with the DVOM hooked to the neg post battery.I had 14.5 volts yet low fuel pressure.In the morning I checked the ...	11
	2006 Chevrolet Trailblazer LT 4.2L Hesitation, Misfire, MIL Lamp on VIN: 1GNDT13S56 Thank you to everyone...tried leak down and more lab scope, nothing!... now it seems the vehicle refuses to miss any longer(at least during testing)...we requested the customer return when/if the problem becomes more consistent. Trouble codes: 0300 (testing and results).	16
	2008 Chevrolet Suburban 1500 LTZ 5.3L Engine VIN: 3GNFK16388 Well the vehicle is still under warranty so I sent them to the local dealership. Thank you for all the replies and help.	22
	1993 Dodge W250 5.9L Speedometer VIN: 1B7KM26C4P I am sorry for not closing this sooner. My customer needed this truck speedo working or not. I am supposed to get truck back in for further service. I do not have any good information to add. I do want to thank all those who took the time to respond lots of go...	21
	2003 Dodge Grand Caravan SE 3.3L power steering VIN: 1D4GP24R73 Flushed the p/s system and changed the reservoir. Now there is ps. Did not change rack. It has a slow leak and my boss does not want to change it. Trying to get a few more miles and doesnt want the added expense. This vehicle is used as a school bus. Lessoned ...	20
	2004 Dodge Durango SLT 4.7L misfire VIN: 1D4HB48N94 Got a lot of good responses, turned out most were right. The #3 exhaust valve rocker arm had fallen off and just laying there not interfering with anything causing the exhaust to back up through the intake thus the ticking noise. Valve springs & keepers stil...	23
	2007 Dodge Ram 1500 TRX4 5.7L Total Integrated Power Module VIN: 1D7HU18237 We got a fix guys. First and foremost, thank you to iATN and all it's contributing members. You helped me out with another one. Some great suggestions and I took them all to heart. Will lay out what all I found. First using my AES Linespi, measured r...	11
	1995 Ford Mustang GT 5.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1FALP42T8S I did get a lot of help from all of you techs out there, but the owner of this car simply says, NO MORE!! some of the points were to check throttlebody, vac leaks, blow by and other base components. most of them had already been checked multiple times. this...	13
	1995 Honda Accord LX 2.2L Hesitation, MIL Lamp on VIN: 1HGCE1823S The fix turned out to be the pcm. We replaced it and the customer has had the car for a week without a hitch. thanks to Ken from california who had the right explanation for the little chuggle before the light came on. We back probed the signal at the compu... Trouble codes: 09 (1 cyl identification sensor).	15
	2005 Honda Odyssey LX 3.5L Cuts out VIN: 5FNRL382X5 Well we did check the battery and connections and that did not solve the issue and checked the radio, player. The CD player we did disconnect and the vehicle still had the issue. Replaced the ignition switch and so far it seems ok but it has only been a week...	14
	2008 Infiniti G37 Sport 3.7L Poor Idle Quality, MIL Lamp on VIN: JNKCV64E88 I took it back apart and everything was lined up where it should be. So I used a long screwdriver to find TDC and it appeared that I was off one tooth, even though the marks on the chain matched up properly. So I figured I'd give it a shot. Reassembled and ... Trouble codes: P0011 (Intake valve timing bank 1), P0021 (Intake valve timing bank 2).	6
	1994 Lexus LS400 4.0L No Start VIN: JT8UF11E2R After watching scanner [...],s video and performing the test I discovered that the igniter driver was not working and replaced the ecu. car ran very well for a vehicle that has sat-up since 2007.	26
	2006 Lincoln Mark LT 5.4L Steering VIN: 5LTPW18586 we isolated this down to being the rack, this vehicle did NOT have electronic assist, I recommended to customer rack & pump as a precautionary complete job. He had an extended warranty but it did NOT cover power steering, so he whined to the dealer he bought ...	8
	2000 Mercedes-Benz S500 Guard 5.0L Hesitation, Surge, Misfire, MIL Lamp on VIN: WDBNG75J4Y Thanks to Richard, Stefano,Robert ,Dan, Ricky and Alain for their encouragement and timely advice! I dropped the left side cat (had to use a 13mm swivel to get the bolts loose and even then, had to remove one of the heat shields to allow me to do this. Did no... Trouble codes: P0300 (Multiple misfires detected), P0305 (Misfire cylinder 5), P0306 (Misfire cylinder 6), P0307 (Misfire cylinder 7), C1504 (Steering angle sensor is not initialized).	6
	2005 Nissan Titan LE 5.6L Differential VIN: 1N6BA07B25 Thanks to all who replied. It would seem that the dealer I was dealing with was trying to sell me more than needed. I informed my customer that only the bearing and seals could be replaced and not the whole differential assembly. He has not returned the vehic...	5
	2007 Saab 9-3 Aero 2.8L MIL Lamp on VIN: YS3FH71U27 Thanks for all the replies. We were trying to get our research completed before the customer scheduled the car for return to the shop. As it turns out the car is scheduled for day after tomorrow and I will add whatever we find when the vehicle is repaired. Trouble codes: P0016 (Crankshaft-Camshaft Correlation), P0300 (Random Missfire), P0301 (Missfire Cyl 1), P0303 (Missfire Cyl 3), P0305 (Missfire Cyl 5).	8
	1996 Toyota Camry DX 2.2L MIL Lamp on VIN: 4T1BG12K8T First reply--Daryl--said ecm and he was right (and quick!) As I found,original ecm never energized egr vsv. Never. Jay from Utah said to check vacuum routing which is a very good idea. On these systems there are two t/body hoses to bpt, one exhaust hose on bot... Trouble codes: P0401.	7
	2007 Volkswagen Passat 2.0T 2.0L Oil pressure VIN: WVWEK73C27 Thanks for the input guys. We sent this to VW as they said they would help him with the repairs. What I think happened is the tensioner or chain failed. The oil pump is chain driven and toasted the engine. The oil has been changed here for the last 20,000 mi...	13
	2009 Volkswagen Beetle 2.5L Battery VIN: 3VWRW31C89 Vehicle left with no fix. Current draw would disappear at times. When we start vehicle current draw would start, check after 2 hours still there. Check after 8 to 10 hours, still there, maybe next day, gone. Current draw test at fuse block very difficult to do...	3

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