Automotive Technicians Technical Discussion and Fixes for Apr 2, 2013

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	Help Request	Answers
	2006 Audi A4 2.0L power windows & sunroof VIN: WAUDF78E96 Hey Euro Gurus! This Audi has no power window or sunroof operation. Mostly just looking for confirmation of a diagnosis and any pertinent info that can be given. I have verified power and ground to the drivers door module and the central electrical module(unde...	View
	2010 Audi A4 Quattro Avant 2.0L engine VIN: WAU4FAFL1A Customer recently bought the car from an older couple. Heard loud ticking noise, brought car to dealership, car got flagged for aftermarket software tuning. Car is unlikely to be tuned but Audi voided the warranty. The car runs perfectly fine, no codes in eng...	View
	2006 BMW 325i 3.0L engine VIN: WBAVB13516 Car stalls at idle randomly the car cuts out and back in on acceleration and any driving speed randomly the tack will also flutter violently at times when this happens. This problem is intermittent but mostly happens when the car is cold. No CEL but I do get i...	View
	1967 Chevrolet Bel Air 4.6L Mechanical I'm reliving my high school years! I have a 1967 bel air that I swapped a 700r4 into. Its not shifting quite correctly. A buddy of mine built the trans without lockup convertor, no-yo-yo shift kits and corvette servo. My shifts seem kinda low, 1-2 16mph, 2-3 2...	View
	1997 Chevrolet Astro 4.3L No Start, Cuts out, Stall, Misfire VIN: 1GBEL19W1V This van came in with a running bad and no-start sometimes complaint. Well went out and started right up and ran fine. So I hooked up scanner to see what if anything wrong. When I was looking at data the van hic-uped just realy fast and when I looked down at s...	View
	2003 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29143 this is my first post so please bear with me. customer just bought truck from a private party and started to have long crank issues, i replaced the fuel filter and noticed prime pump did not work well so i replaced all the seals and now primes system well. sti...	View
	2002 Chrysler PT Cruiser 2.4L No Start VIN: 3C4FY48B32 Customer was driving when cradle broke, pulling rh axle apart. Customer stated that car would not start right after cradle broke. Sensor ground wire was cut when hit by axle. Other wires check ok. Nothing pinched when cradle replaced and all grounds clean and ...	View
	2002 Chrysler PT Cruiser 2.4L Stall, MIL Lamp on VIN: 3C4FY48B02 Has unusual problem that I've not encoutered before: engine starts and runs OK, but stalls when cam sensor is plugged in. Unplug cam sensor wire and vehicle will start. It does this every time. Found the usual code P0340 in it, checked wiring harness from cam ... Trouble codes: P0340 (Cam signal lost)	View
	2006 Chrysler PT Cruiser Touring 2.4L Cruise control VIN: 3A4FY58B56 Vehicle (I use that term loosely..) came in with air bag light on with fault code for drivers squib 2 open, several codes for disconnected battery and other codes most probably set when customer did the control stalk work. All codes cleared except the air bag ...	View
	1991 Dodge Dakota 3.9L shudder VIN: 1B7FL26X1M vehicle will shudder, sometimes very bad when slowing down. This is my son's pickup and I will see it this weekend. I have no testing info as I have not seen it yet. He describes the problem similar to a stuck TCC solonoid I have experienced on a GM car. I hav...	View
	2004 Dodge Ram 3500 ST 5.9L Surge VIN: 3D7LU38C34 This Cummings will hang rpm high on a WOT stab in neutral and in gear, the revs will stay high for a second and then surge back down to idle. No codes and truck drives ok. The engine sounds louder at idle than usual (subjective) and I feel a little bit of a mi...	View
	2006 Dodge Ram 2500 SLT 5.9L transfer case shift motor VIN: 3D7KS28C06 This vehicle belongs to rancher that lives 60miles from the nearest town. Was towed in on trailer to another shop, who referred it to me for electrical problem-STUCK in 4LO. After going through iatn knowledge base & alldata.com diagnostic tree for related code...	View
	2008 Dodge Grand Caravan SE 3.3L Hesitation, Stall, Misfire VIN: 2D8HN44H08 Customer complaint of hesitation and stalling when change gears and at idle. Vehicle misfires intermittently and stalls. I was able to get it to stall in the shop by switching gears back and forth from drive to reverse. When van acts up I am able to see on sca... Trouble codes: P0339 (p1128-), P1128 (p0300-), P0300	View
	2011 Dodge Durango Crew 3.6L No Start, long crank VIN: 1D4RD4GG4B just had at dealer for warr. for this issue they said fuel pump and they replaced and did not resolve issue. w/o says no updates were avail for my car, wondering if there is? or any ideas to give them, i have car now so i can test help wifes car and thats all ...	View
	2003 Ford Taurus LX 3.0L No Start VIN: 1FAFP55S23 I have a problem with this Taurus. The vehicle came in after setting for almost a year. There was no fuel pressure so the fuel pump, strainer, etc was replaced. The vehicle started and was serviced (LOF). The vehicle was given back to the customer, the next da...	View
	2003 Ford F-150 XL 4.2L Poor Idle Quality, Misfire VIN: 1FTRX17293 I need help iv been trying to fix this truck for a week now it came in missing bad I thought it was plugs and wires but I tested it its not its misfiring on cylinders 2,3,6 only I changed the plugs anyways it made no difference I changed the fuel injectors sti... Trouble codes: P0174, P0316, P0302, P0303	View
	2004 Ford F-150 XL 5.4L ABS Module VIN: 1FTVX14544 We found one case in the archive with the same codes but it expired without a fix or summary. We suspect the module is kuput but at $600 we'd like a little confirmation. Thanks iATN is the best because of the folks!	View
	2006 Ford E-250 4.6L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FTNE24W16 Van has no power giving gas or under load. miss firing all cylinders after unplug mass air flow sensor. Did a tune up. changed spark plug, fuel filter, air filter, oil changed. check freeze frame and found code p0106. check data map sensor on scanner it stays ... Trouble codes: P0106 (Map baro performance)	View
	1998 GMC C6500 Topkick C6H042 7.0L light and alarm VIN: 1GDJ6H1C0W auxillary brake light is on dash and has alarm sounding. brakes work fine, need flow chart for caterpiller diesel motor found one for gas engine but not same please help	View
	2000 Honda Passport EX 3.2L fan bearing VIN: 4S6DM58W1Y I am wondering if anyone has any ideas or has run across anything like this on a passport or rodeo.	View
	1998 Infiniti I30 3.0L No Start VIN: JNKCA21A0W cranks but don't start fuel ok,injector pulse ok, but spark at 2 coils #3 and #6	View
	2004 Jaguar XK8 4.2L No Start VIN: SAJDA42C24 Hello guys, I have a Jag here that's been plaguing us with problems over the last 6 months or so. Originally it was towed in with a no acceleration under load condition due to a failed fuel pump. Replaced the pump, all was good. About 3 months later it came ba...	View
	2004 Jaguar XJ8 4.2L master cyl. VIN: SAJWA71C64 Car came in repaired, rusted brake lines at the rear of the car near fuel tank. Bled system with pressure bleeder several times, manually bled brakes, still has a soft mushy brake pedal. Is it possible that the master cylinder failed when the brake pedal went ...	View
	2000 Lexus RX300 3.0L MIL Lamp on, no overdrive VIN: JT6HF10U0Y Car came in with no 4th gear overdrive. Had code P0330 knock sensor bank 2. Cleared code and had overdrive until hiway test drive when light came on. Next stop and overdrive was gone until Cleared code or cycle ignition. Replaced knock sensor, checked other kn... Trouble codes: P0325 (Knock sensor bank 1)	View
	1998 Mercedes-Benz SL600 6.0L Soft Top VIN: WDBFA76F6W Customer brought the car in soft top wont work, check for codes none found, fluid are full, I hear a click when I operate switch for the top or the roller bar,any sugestions will be greatly appreciated	View
	2002 Mercedes-Benz S600 5.8L head gasket I have this 02 S600 coming in for a head gasket replacement due to an oil leak at head,I am aware that it could possibly be the oil cooler I will verify that when it gets here,but I am just trying to find out what kind of job this will be.I have the list of sp...	View
	2005 Mercedes-Benz ML350 3.7L MIL Lamp on VIN: 4JGAB57E75 Previously, the fuel cap and purge valve have been replaced. When performing the on board test, tank pressure is brought down 20mbar, then is allowed to sit for two minutes. Pressure returns toward ambient anywhere between 8mbar (acceptable) and 15mbar (fail) ... Trouble codes: P2075 (Evap system has a small leak)	View
	2003 Mercury Marauder 4.6L Cooling System VIN: 2MEHM75V43 Well, here it is. Can somebody explain the flow of coolant in this cooling system. I have no coolant getting to heater core. Mitchell has no info. The engine does not run hot or cold. Thanks	View
	1996 Nissan Quest GXE 3.0L slighly high LTFT VIN: 4N2DN11W1T Hi Guys, I am trying to set the base timing on this. Alldata says to run at 2000 until warm then snap rev a couple times, then idle for a bit, then shut off, then unplug TPS then restart, then snap rev a few more times, then idle for a bit more, then set ti...	View
	2008 Pontiac Grand Prix 3.8L Stall VIN: 2G2WP55218 This vehicle came in with the symptom stalled and CEL on. Test drove and vehicle runs fine CEL is off.Pulled codes and got P0335 carnkshaft sensor a fault. I monitored the crankshaft position sensor circuits as per pinpoint test and found instead of counts goi... Trouble codes: P0335	View
	1978 Porsche 911 SC 3.0L Poor Idle Quality VIN: 9112001270 Car came back with a stalling coming to a corner with clutch in (this happens regularly) or on decel going around a corner, once in a great while. I checked the decel valve but found this works on high speed and high rpm decel,in reading from a manual. I smoke...	View
	2008 Porsche Cayenne 3.6L MIL Lamp on VIN: WP1AA29P98 Vehicle came in with code P12A2 & check engine light is on & seems engine running rough at idle, look at alldata for code description & its the fuel pressure sensor. install new sensor, clear pcm memory,return the vechicle to the customer, a day later customer...	View
	2000 Saturn SL2 1.9L no 1st gear, no 3rd gear VIN: 1G8ZK5271Y We replaced customers transmission with used unit. Had similar problems before the replacement. After transmission was installed it ran OK for about a week except for the occasional harsh 1-2 shift. Now it slams into reverse harsh plus it will neutral out in b...	View
	1997 Subaru Legacy LSi 2.5L 1-2 shift VIN: 4S3BD6650V Customer complaint is a harsh 1-2 shift. Drove vehicle and it's positively there. After warming up it does same thing. I ckd TSBs and there is one for cold starts where the computer changes shift logic to help in warm up cycle. It seems to be persistent and do...	View
	2003 Subaru Baja 2.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 4S4BT61CX3 Low fuel pressure 15 p.s.i we replacded fuel pump same fuel pressure . Thanks for the help Trouble codes: P0032 (B1s1 oxygen sensor)	View
	2005 Volkswagen Passat GLS 1.8L oil leak VIN: WVWBD63B15 Ok, need a little help from the VW guys out there. Had this car in the shop for awhile now. Originally came in for head replacement due to the cam gear coming off the cam and valve contact. Replaced head after head replacement it was burning oil, found the tur...	View
	2006 Volvo S40 T5 2.5L Mechanical VIN: YV1MH68206 Thank you volvo techs in advance. We are replacing cam seals on a s40 t-5 2.5 and we need to know what cam holing tool is the right one, tool #. It is the newer version engine not able to get accurate info. Thank you, scott	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2007 BMW 328i 3.0L Poor Idle Quality, Surge VIN: WBAVA33547 Sorry, but car has not come back yet. I think the MAF would be the best first step. It does feel like a BMW with the oil cap missing, but that was a tight seal and could feel good "suck" under it. Also it is very intermitent. It seemed that when it was real ba...	8
	2008 BMW 535xi 3.0L oil life reset VIN: WBANV935X8 When the car is over 300,000km, BMW recommends to use ISTA/D under service functions and disable the service light. There is a test plan on the newer version of ISTA/D 2.39.1 and up to turn the light off.	8
	1973 Cadillac Fleetwood 7.7L alternator VIN: 6B69R3B101 first off, let me apologize for taking so long to close this. i was waiting to hear back from the customer, which took awhile, as he went away for a few days. i checkde, and rechecked the connections. i had very clean connections from all grounds, and nearl...	49
	2004 Cadillac SRX 4.6L Misfire VIN: 1GYDE63A14 sorry i have to close this request.we were going to put a used pcm in it and i have yet to recieve one.the car is still at the shop and i will update again when the car is fixed.the replies were very helpful fuses are seperate for the odd and even coils, also ... Trouble codes: P2301, P0351 (Ign coil a primary circ prob), P2319 (Ign coil 7 cont circ hi), P0357 (Ign coil g primary circ prob), P0353 (Ign coil c primary circ prob), P2313.	7
	2006 Cadillac CTS 3.6L Theft light VIN: 1G6DP57746 Hey guys thanks to everybody that reply , some of you hit right at the nail, i end up replacing pcm reflashed it and now everything is working normal!! Trouble codes: U1300 (Class 2 voltage high), P1629 (Theft fuel enable).	8
	2007 Chevrolet Trailblazer LT 4.2L Differential VIN: 1GNDT13SX7 I should have drained fluid out of bottom drain plug after receiveing poor instruction's from identifix i went and drained out all fluid and chucks of metal came out installed new transfer case and reprogramed TCCM at dealer all is good	5
	2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657 Well it looks like no one wants to spend more time and money on this car. So thank you for all the suggestions. Customer is driving the car and just loves it and says it runs just perfect except for the flashing engine light. Sorry i couldn't provide a fix but... Trouble codes: P0300 (Random cylinder misfire), P0301 (Cyl 1 misfire detected), P0304 (Cyl 4 misfire detected).	15
	1996 Dodge B3500 5.9L Excessive Emissions, Comunication VIN: 2B5WB35Z1T Warrentied Front O2 Replaced Rear Sensor Returned Vehicle To Owner Been Gone A week So Far So Good PS I Was Advised In The Replys That The Rear O2 Carries Athority On Fuel Trim And I Should Try Replacing It Could Find Nothing Failing While It Was In The Shop Trouble codes: P0171 (Lean).	4
	2001 Dodge Grand Caravan Sport 3.3L Pcm VIN: 2B4GP44321 As we stated from the bigining this was for another shop, many replies stated that the PCM in this car cannot be rebuilt by any independent rebuilders, also many said to check and double check all the ground path wires and we did three times, we sent the PCM b...	10
	1996 Ford F-250 Eddie Bauer 7.3L No Start VIN: 1FTHX26F5T Thanks again to everyone. The original problem was the ICP sensor. I tested the glow plugs and they all checked out ok. I tested the glow plug relay and found that it failed even though it was only five months old. I replaced the relay under warranty and all i... Trouble codes: P1280 (ICP sensor).	31
	1998 Ford Expedition Eddie Bauer 5.4L cyl # 3 VIN: 1FMPU18L0W Everyone I am sorry to have to close this request but I have not heard from this customer again. I am sorry that I could not try all of the suggestions that I recieved to find the problem. I have saved all of the info sent to me and if I get the chance I will...	44
	2001 Ford Escape XLT 3.0L Emissions VIN: 1FMYU04111 Thanks to all the replies I have recieved. This vehicle would not get ready the EGR or EVAP our EPA would not give it a waiver. We could only have 1 not ready, All together this vehicle was driven 2639 miles in just over 4 months time. I called Identifix for h...	12
	2004 Ford Taurus SEL 3.0L antenna VIN: 1FAHP59S64 reeived 6 replies. some said replace mast, which I guess they did not see we had already done before our post. some said replace antenna assembly. customer has not decided to spend anymore on it at this time. Thanks for the help guys. JOe	6
	2004 Ford F-150 Lariat 5.4L MIL Lamp on VIN: 1FTPW12584 Thank you everyone for the suggestions. 1. I was not able to swap O2 sensors even though they were the same. We did however have one in stock so I replaced it with a Motorcraft sensor but there was no change. 2. I checked back pressure while I had the O2 sen... Trouble codes: P0174 (System Too Lean - Bank 2), P0175 (System Too Rich - Bank 2).	13
	2006 Ford Crown Victoria LX 4.6L Surge, jerking VIN: 2FDFP74W46 Moisture was getting down the coil boots and causing a misfire. Installed a set of MSD coils and boots and the problem went away. How I found the problem was hooked up IDS scantool and watched the power balance while lightly spraying water on/near the coils....	14
	2006 Ford F-450 Super Duty XLT 6.0L engine, transmission VIN: 1FDXF46P96 thanks for the replies and help the fix was that the customer had it 4 quarts over full with oil changed oil and stopped shaking thanks	15
	2007 Ford Focus SES 2.0L Power steering VIN: 1FAHP31NX7 I want to thank everyone who replied. After replacing ps pump and reservoir problem was still there. I then decided to disconnect the ps hoses and blew air through them to make sure no restrictions. After refilling ps fluid I then had a leak in the return hose...	6
	2008 Ford Focus S 2.0L No Start VIN: 1FAHP34N08 Thankyou for the reply sending me to Mathew Ragsdale tech forum, It was quick work to determine I had a bunch of incorrect keys and a bad transceiver. His explanation of the system along with recordings of correct signal patterns made this an easy fix. Trouble codes: B1600, B1602.	4
	2008 Ford Expedition XLT 5.4L No Start, Stall VIN: 1FMFU16518 thanks for all the replies it turned out it does not have a fuel control module just pump and relay could not find the info last night on it and asked you guys thanks	17
	2000 GMC K3500 Sierra SLT 5.7L ABS & Speedometer VIN: 1GTHK34R5Y I removed the EBCM for repair/rebuild due to no reman available. New was very expensive and "no longer available". I located a rebuilder on the web and sent it for repair. They were unable to rebuild it and were kind enough to locate a used one and send it to ...	13
	2008 Lincoln MKZ 3.5L Compass VIN: 3LNHM26T88 thanks to all the replies. the problem came out to be the pigtail wiring harness in the back of the cluster itself. replace pigtail with a used one because there is no used one available.	3
	1996 Mercedes-Benz S320 SWB 3.2L automatic transmission VIN: WDBGA32E5T I replaced the transmission control module with the updated module & now the transmission works like new again.	6
	2000 Mercedes-Benz E320 3.2L Mechanical VIN: WDBJF65J0Y Thanks to everyone who helped with information reguarding this car. Had several responses that were dead on. First comment I will share, is that with the left valve cover off you can see the balance shaft timing mark and mark on the block, if the balance shaft...	8
	1992 Mitsubishi Expo LRV Sport 1.8L injector pulse VIN: JA3CV40D5N computer was bad, found capacitor burned up and melted chip board just like a technician wrote in, tested all wiring after getting correct wiring color from Mitchell, alldata was wrong, tested distributor crank reference and cam ref, computer was bad. thanks t...	5
	2003 Mitsubishi Montero Limited 3.8L car alarm VIN: JA4NW51S63 We thought it was connected to removal of anti theft relays.. It was the starter.. Go figure. Thanks	2
	2004 Nissan 350Z 3.5L Poor Idle Quality VIN: JN1AZ34014 told the customer that it needed an engine control module. will bring it back to the shop later and will keep you informed Trouble codes: P0507.	6
	1999 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NE12T5X wow. great responses. replaced the coil housing and she fired up. looks like everybody but me has fixed one of these b4. i had given the old housing a good looking over but the responses were so in favor of this being my failed component i knew i had missed it... Trouble codes: P0300, P1626.	44
	2000 Pontiac Grand Am SE 2.4L cooling system VIN: 1G2NF52T6Y Tadd and Bill, ya'll nailed it. After flushing and back flushing the heater core a couple of times, hooking everything back up and running for most of the day, all is perfect. Thanks to all who took the time to read and respond. Iatn is one of the best tool...	6
	2005 Saturn Vue 2.2L No Start, MIL Lamp on VIN: 5GZCZ43D55 Thank you to all who offered help on this vehicle. Finally was able to spend time on this vehicle. The culprit turned out to be lack of proper voltage to ECM via battery positive voltage. After testing voltage on C1 ECM connector, found that battery positiv... Trouble codes: U2105.	9
	2000 Subaru Outback Limited 2.5L 1-2 shift VIN: 4S3BE6869Y when we did the head gaskets we pulled the engine and trans as a unit. seemed to be easier than doing it in the vehicle. I pulled the pan last friday night to see if anything was messed up, seemed fine. put it back together and let it sit over the weekend. ...	5
	2008 Suzuki Forenza 2.0L shifter mechanism VIN: KL5JD56Z08 thanks for all your help, richard from california nailed it. the "key interlock unit" is located in the relay block on the left front corner of the lower dash. i had looked at those several times but the wiring was so faded it didnt look like the right ones. p...	3
	2001 Toyota Celica GT 1.8L Engine VIN: JTDDR32TX1 Thank you all for helping out with your valuable tips and information. Unfortunately, the customer has declined any further repairs at this time. We explained everything we did as it has been shown here on this techhelp posting. They were understanding and wer...	15
	2002 Toyota Camry LE 3.0L not releasing VIN: 4T1BF32KX2 Summary; John: yes, I took it apart hot. The rotor was 500f when I got back, and I did get a couple minor burns. Wayne: I eventually had to eliminate anything holding fluid pressure, as even at the bleeder there was NO pressure. Michael: I guess I should have ...	19

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