Automotive Technicians Technical Discussion and Fixes for Nov 21, 2013

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	Help Request	Answers
	2002 Audi A4 Quattro 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAULT68E92 This car was originally in the shop 3 months ago with codes set for the Intake camshaft control circ. bank 1 and bank 2 open, bank 1 adjuster tested bad so we replaced only bank 1 adjuster unit and timing belt, when we finished we topped the car off with oil a... Trouble codes: P0300, P0301, P0302, P0305, P1411	View
	2004 BMW 745Li 4.4L ligh on VIN: WBAGN63494 Hello guys, this car came in 2 weeks ago with the srs airbag light on in yellow, we conected the gt1 and got a code for driver side seat matt, we order the part and schedule the part for the following week, by te time customer retur the light was red and he al...	View
	2008 Buick Lucerne CXS 4.6L Abs VIN: 1G4HE57Y38 The car was in back in Sept, for same code. I haven't got it act up for me. The freeze frame shows the LF 42MPH and the other wheels showed 62mph. The customer stated the he was driving on the highway when the car just jerked to the right very hard. The Tracti...	View
	2002 Chevrolet Malibu 3.1L rack & pinion VIN: 1G1ND52J72 car came in for alignment steering wheel off center. drive car wheel is almost upside down find bent l/f lower controll arm replaced it nno change in wheel position on align rack with wheel straight have over 8 degrees of toe.with wheel where it is when drivin...	View
	2004 Chevrolet Suburban 1500 LS 5.3L Sensor relearn VIN: 3GNFK16Z24 Vehicle came in with tpms light on, found LF sensor dead. Replaced sensor and now can read the data with mac tools tpms tool, but cannot get vehicle to go into learn mode. Tried the light switch and pressure methods of activating relearn mode and no horn chirp...	View
	2005 Chevrolet Express 3500 LS 4.8L Misfire, MIL Lamp on VIN: 1GCHG35V35 this van originally started setting codes for a misfire about 3 months ago (p0300- counting misfires on1,5,6,8 which are all opposite in the firing order {[...]}). it appeared to be in need of a tune up, so we replaced the plugs and wires (coil near plug). ... Trouble codes: P0300	View
	2006 Chevrolet Silverado 3500 LT 6.6L srs VIN: 1GCJC33D76 Truck came in for front brake pads and steering column shaft. After repairs service airbag warning pops up. Pulled codes B0024, B0026. Driver frontal deployment loop stage 1., out of range and open. I have replaced these steering column shafts in past with no ...	View
	2007 Chevrolet Equinox LT 3.4L Stabilitrak light, speedometer VIN: 2CNDL63F97 This vehicle has had intermittent speedometer issues (stops working)and stabilitrak intermittant light on dash with no codes. Checked speed inputs from ABS module, PCM, and Instument Panel and haven't yet seen a problem. The customer states happens infrequentl...	View
	2007 Chevrolet Avalanche LTZ 5.3L lf strut VIN: 3GNFK12307 Came in for a rubbing noise from suspension. After much time checking control arms, ball joints, tie rods, stabilizer was able to isolate it down to coming from within the strut. Replace the strut and during replacement broke the short 90 degree connector that...	View
	1999 Chrysler Sebring LXi 2.5L No Start VIN: 4C3AU52N8X Towed in for no start. Customer heard a pop. Cranked over fine so I decided to check the T belt... T belt had play,,, After removing all covers I found timing marks in place, T Belt is getting replaced or recommended. Anyway after finding that I did what I sho...	View
	2007 Chrysler Sebring Touring 2.7L Poor Idle Quality, Hesitation, Surge VIN: 1C3LC56R57 Hey guys need a little help. Got this chrysler with a 2.7 and 3 months ago the customer had a noise from the front of the engine which turned out to be the water pump. We replaced that along with a timing chain tensioner. Customer recently brought vehicle back... Trouble codes: P0016 (cam crank timing), P0406 (EGR position sensor circuit high), P0300 (multiple misfires)	View
	2000 Dodge Durango 4.7L No Start, Hesitation, Long Crank Time VIN: 1B4HS28N0Y Hi everyone, we have a 2000 durango that is giving us fits. about a month ago it came in with engine light on and running rough had code for fuel injector circuit fault on one cylinder after checking resistance on all injectors we sold the customer a set of re...	View
	2001 Dodge Durango R/T 5.9L 1-2 shift late VIN: 1B4HS28Z81 Trans wont up shift untill you rach 45 mph on hard or soft accelration then shifts 3 and 4 normal, Dash board gear indicator is also inop don't know if their is a connection. I do GM trans this is my first Dodge I'm at a loss on what to do with it.	View
	2003 Dodge Grand Caravan EX 3.8L No Start VIN: 2D4GP74L63 Vehicle towed in-stalled-would not restart.Found no communication with PCM-diagnose bad PCM.Owner opted for PCM repair other than new-after receiving repaired PCM van acted funny-but started-roadtested several miles-ok.Abs,brake and the small red theft lamp ar...	View
	2000 Ford E-350 Econoline 7.3L No Start VIN: 1FDWE35FXY please help. I am not a diesel expert just know enough to be dangerous, but customer does not trust anyone else.this vehicle was towed into our shop. the customer was driving it stopped for a couple of hours then it would not restart. I tried to start and cran... Trouble codes: P2112 (Icp pressure problem)	View
	2000 Ford F-250 Super Duty Lariat 7.3L Surge VIN: 1FTNX21F4Y Looking for a little diesel help. When driving down the road at a steady cruise all of the sudden there is a loud rushing of air sound. When this happens the truck seems to lose power a little. If you depress the accelerator slightly the noise will stop almost...	View
	2002 Ford F-550 Super Duty XL 7.3L Cuts out VIN: 1FDAF57F52 Hi I have a 7.3 diesel tow truck that first thing in the morning starts good I let run for a min and head to town I live 3/4 of mile from the highway seems to run just fine for the first 2 1/2 miles then the power drops off till I am down to 25mph feels like n... Trouble codes: P0472	View
	2005 Ford F-250 Super Duty King Ranch 6.0L No Start VIN: 1FTSW21P45 Thanks in advance for any help, this vehicle had a blown head gasket, we put new head gaskets, ipr was broken so replaced that, but the vehicle does not starts, all the readings seems good, any help would be appreciated. Thanks. Trouble codes: P0261, P0267	View
	2006 Ford F-250 Super Duty XLT 6.0L Misfire, MIL Lamp on VIN: 1FTSW21P96 Complaint no power. Scanned vehcile codes po261, 264,267,270,273,276,279,282 injector low circuit. While problem occurs cylinder contribution -50 on cylinders 2,3,5 and 8. The first two injectors tested 1 ohm hot .9 ohms cold Trouble codes: P0261, P0264, P0267, P0270, P0273, P0276	View
	2002 Hyundai Sonata 2.4L Misfire VIN: KMHWF25S22 Customer brought this car after trying to cure this erratic misfire himself. There are no codes stored current or in history. The car will run fine for a few minutes then start to misfire severly like its losing two cylinders at the same time. It will do this ...	View
	2001 Infiniti QX4 3.5L No Start VIN: JNRDR07Y31 This one is really bothering me. It seems I have everything I need but still wont even attempt to fire. I have graphed my cam sensors and they graph good. I have unplugged cam and crank sensors and it still wont fire. The plugs are getting really wet with gas ...	View
	2001 Isuzu NPR 4.8L Calipers VIN: JALB4B1421 Replaced rear wheel cylinders, shoes and front brake pads, bled system. After bleeding brakes, great pedal, all is good. Vehicle leaves for a few days, comes back in with low pedal. Has air in front brakes again. Rebled brakes, great pedal again, Give it a few...	View
	1988 Jeep Cherokee 4.0L No Start, Cuts out, Stall VIN: 1JCML7817J Hi customer complaint- vhicle stalls and will not restart for a few minutes (will crank over). vehicle cuts out like key is turned off very briefly. Idle very rough, unstable, and rolling. Fixed idle issue by repairing vacuum leaks and replace bad o2s. With sc...	View
	1998 Lexus LX470 4.7L torsion bars VIN: JT6HT00W7W customer brought vehicle in with a kit made by a company called Arnott.To get rid of automatic level control.Nice looking kit.Lexus told customer like 5 grand to fix. The kit had 4 bilstien shocks and 2 rear coil springs.InSTALLED KIT AND WHEN LET DOWN THE FRO...	View
	1999 Lexus RX300 3.0L low beam VIN: JT6HF10UXX running lights work high beam work drl works dash and park lamps work .I get power to both fuses ,I use power probe and power up circuit by probing wire under under hood fuse block and low beam lamps come on,wiring diaghram shows wire comes straight from fuse ...	View
	2004 Mazda RX-8 1.3L Plugs VIN: JM1FE17NX4 The car wouldn't start so the customer had it towed to me instead of the shop that changed the plugs the last time it wouldn't start. I found the same thing, fouled plugs. I know that weak coils and high res. in plug wires can cause this so we put new coils, p...	View
	2010 Mini Cooper S Clubman 1.6L MIL Lamp on VIN: WMWMM3C59A We believe the dealer was correct in their diagnosis that the intake valves do need to be De-carbonized! What we like to know is what is the best way to do this job. We did this job once before on an Audi, we just scraped the back of the valves off and it work... Trouble codes: 2D52, 2773 (Combustion misfire 1 cylinder Misfire in warm up), 2783 (Combustion misfire several cylinders Misfire in warm up)	View
	1997 Oldsmobile Achieva SL 2.4L abs VIN: 1G3NL52T2V This car came to me from another shop that could not fix abs light. I found the module was dead no com. Replaced module now it comunicates and sets lf wheel speed codes found bad wires replaced harness. Now sets lf variation codes replaced lf speed sensor took...	View
	2000 Pontiac Bonneville SE 3.8L Poor Idle Quality, Misfire VIN: 1G2HX54K1Y Hello, This car came in for a overheat and died. Found the coolant leak and it failed a block test with running very rough. Customer opted to pull heads and they pressure checked OK, gasket was damaged. Put it all back together and now I have a misfire on cyli... Trouble codes: P0300	View
	2003 Saab 9-3 SE 2.0L clutch VIN: YS3FB45563 Hello iatn techs, Im looking for reasurance on this one, customer brought this car on a tow truck and ask me to replace trans clutch (manual) and so I did the problems is that the clutch peal sits pretty low you bearly let go off the clutch pedal when in gear ...	View
	2009 Subaru Outback 2.5i 2.5L starting VIN: 4S4BP61C89 Hello, I think i know which way this will go but i am not sure. This car was towed to us with a no crank condition, tested starter, it's ok, checked only getting 9 volts on small wire at starter, Find starter relay, in the process i realize there is a ER-HC ab...	View
	2001 Toyota Highlander 3.0L Stall VIN: JTEHF21A51 This is a well maintained regular customers car . about 4k miles ago she started stalling after a hot soak. starts back up fine and never stalls on the first start of the day. by this I mean you must get her up to temp ,shut it off, wait 15 minutes and restart...	View
	1982 Volkswagen Vanagon Campmobile 2.0L Head Sensor VIN: WV2ZA025XC this van will not start when its cold out. I am trying to find the temp range chart for the head temp sensor in left cylinder head. haven`t worked on one of these in almost thirty years & am having trouble finding resistances. If any one knows the spec`s it wo...	View
	2005 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRK69M25 Car came in with 3 codes. P0068, P0101 and p0171. Checked the maf and it was dirty as can be so we replaced it and test drove car. Seemed OK so we gave it back to customer. Next day he called and said after 30 minutes of driving the check engine light came bac... Trouble codes: P0101, P0068, P0171 (testing and results)	View
	2010 Volkswagen Touareg TDI 3.0L MIL Lamp on VIN: WVGAK7A92A Not sure as to where to start on this vehicle, my Bentley DVD's only go to 2009 and they don't have a DVD out yet for this model. I did find some info on the Ross-Tech wiki for the P2453 to check the exhaust pressure sensor 1 (G450), but it doesn't give much d... Trouble codes: P2453 (Diesel particle filter differential pressure sensor implausible signal), P13D3	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2001 Acura MDX Touring 3.5L Fog lights, Pass Hi beam. DRL VIN: 2HNYD18601 Further testing after the installation of the DRL module, I found that the 6-7 volt back feed at connector c403 had disappeared. However this did not fix any issues. It's possible there is a bad ground somewhere but I never found it. Both high beams share a gr...	9
	2005 Buick LaCrosse CX 3.8L MIL Lamp on, Reduce engine power VIN: 2G4WC53295 I purchased a new throttle body plastic connector and terminals and soldered on new terminals with the new plastic connector. I lengthened the wires a few inches also because after cutting off the old connector it would have been too short. It was very time co... Trouble codes: P1516 (TAC Position Performance), P0411 (Secondary Air Injection).	6
	1979 Cadillac DeVille 7.0L heater VIN: 6D47S99120 Morning All, Thanks for the help- found the switch at the right front of the head and grounded it, heat came back. Looking for a switch, but for the time being I grounded the wire to the intake. Thanks again Steve [...]	23
	2002 Chevrolet Impala 3.4L engine swap VIN: 2G1WF52E92 This vehicle is fixed.I swapped the cam from a 2002 3.4 and the cam sensor and the intake{upper and lower} and it runs perfectly.I got stuck with this engine swap because the original engine started knocking after the crank/cam relearn.Come to find out the eng...	13
	2006 Chevrolet Impala LTZ 3.9L No Start Wasn't sure whether or to put this under fixed or not fixed. After driving the customers car for three days (customer's request), I duplicated the problem only once. Being such an intermittent condition we will just have to wait and see what happens. I couldn'... Trouble codes: P0513 (p1682-), P1682.	10
	2013 Chevrolet Impala LT 3.6L front impact sensors VIN: 2G1WG5E35D Thanks to all who replied. My intention was to affirm my suspicion of the SDM needing programming after having done personal research. Upon recommendation the car lot had a programming guy come out and program the new SDM which resolved the issue and both dt...	9
	2001 Ford Ranger XL 2.5L No Start VIN: 1FTYR10C11 First off I would like to thank Christopher from Florida, Victor from Missouri and Loren [...] Idaho for confirming my suspicions. I felt from the symptoms that this vehicle was firing at an incorrect time and Chris from Florida convinced me to scope the cam an...	23
	2002 Ford Excursion Limited 6.8L driveline VIN: 1FMNU43S32 Never did get rid of vibration. Replaced U_joints, differential bearings. Had driveshaft balanced, replaced transfer case, balanced wheels. Checked brakes. Shimmed driveshaft angle. Nothing helps.	14
	2004 Ford E-450 Super Duty 6.8L MIL Lamp on, Stumble VIN: 1FDXE45S84 I replaced the ckp sensor also I tested the batteris both of them were bad changed those with a new ones. tested the veichle and it ran in good condition. changing the ckp and the batteris help to fixed the problem. Trouble codes: P0320 (Ignition/distrubiton speed engine circuit malfunction).	11
	2006 Ford Escape XLT 2.3L No Start VIN: 1FMYU03Z56 Hi Thank you to everyone who replied. Special shout to James from Missouri for the detailed post. We followed it to the letter and the truck started right up. Thankfully for the customer there were no other issues that came up due to him running the truck o...	14
	2006 Ford E-350 Super Duty 6.0L Cuts out VIN: 1FTSS34PX6 Thanks again for the help. Did the balloon test and the #1 bank was pressuring back into the fuel rail. Had a known good used injector laying around and swapped it in for #3 and it fixed the problem. No visual flaws to the copper washer or orings on any of the...	9
	2008 Ford Escape Limited 3.0L Turn Signal VIN: 1FMCU04108 Got this one fixed, It was the SJB smart junction box. Got ti from the dealer, tried to have another shop program it which didnt work he said the SJB was bad and had corupted files, So i took it to the dealer and they programed it. Job done. thanks for the he...	6
	1998 Honda Accord EX 2.3L Misfire VIN: 1HGCG5650W ok I believe we have this thing fixed. we did clean the injectors with the same outcome. So we removed the injectors tested each one. they flowed fine so we removed the intake and cleaned the egr ports. retested seems to have fixed the problem. returned car to... Trouble codes: P0301, P0302, P0303, P0304.	18
	2004 Infiniti G35 3.5L Misfire, MIL Lamp on, no power VIN: JNKCV54E54 Unfortunately the customer declined any more testing but what I did learn was that the injectors are good ( replaced with new no effect on how the car drove.)the coils were good to swapped side to side with no effect. This is were the customer stopped and did ... Trouble codes: P0300.	11
	2005 Mini Cooper S 1.6L caliper VIN: WMWRE33575 I would like to thank everyone for there help. Ordered one from dealer which was also ATE caliper installed bleed system. test drove took temp gun and checked on both rear calipers and rotors same temp on both sides. do not understand why one from dealer fixed...	9
	2007 Mini Cooper S 1.6L ex camshaft VIN: WMWRH33597 Great feedback...turned out it was the vacuum pump was locked up. the vehicle wasn't actually in front of me...I posted for a co-worker...I would hope i would have seen the vacuum pump and thought to check it, i totally forgot that mini had a vacuum pump. un...	8
	2001 Mitsubishi Galant GTZ 3.0L MIL Lamp on VIN: 4A3AA46HX1 Thank you for the help the transmission range switch ended up being the problem we replaced the switch and now the scan tool reads the appropriate gear that the shifter selects were as before the live data channel displaying shift position was stuck in 3rd gea... Trouble codes: P0715, P0720, 27 (Transmission range switch open).	3
	2004 Nissan Frontier XE 3.3L No Start VIN: 1N6ED29X54 WELL THIS ONE IS FIXED.. THANKS TO THE ADVICE OF KENNETH FROM FLORIDA, I INSTALLED A DISTRIBUTOR FROM NISSAN AND FIRED RIGHT UP! LESSON LEARNED! THANKS TO ALL WHO REPLIED	7
	2000 Oldsmobile Alero GL 2.4L Battery VIN: 1G3NL52TXY Thanks everyone for your patience and sorry about the delay. The concern was intermittent and i could not get it to act up so i let the the customer take the vehicle and i have yet to here anything from them. thanks for all your suggestions and thanks you for ...	13
	2004 Pontiac Grand Prix GTP 3.8L Abs VIN: 2G2WR524X4 Well this is one we don't quite understand and sorry for any missing information. What we found is that the engine never did the typical idle flare on start up. The throttle plates were coked with carbon. After cleaning the throttle plates and confirming prope...	4
	2007 Saab 9-5 2.3t 2.3L Cuts out VIN: YS3ED49G17 Evidently one must have an actual Saab factory scan tool to diagnose the theft message, which I do not have. As far as the codes go I suspect the throttle valve but I can't say for sure without the proper scan tool. I spent $9,000 on a Snap On Verus that could... Trouble codes: P1251 (Throttle body), P1261 (testing and results).	6
	2005 Volvo V50 T5 2.5L No Start, Poor Idle Quality, MIL Lamp on, lack of power VIN: YV1MJ682X5 Sorry for taking so long to close this one out. We wanted to be sure that the car was fixed first. The customer has had the car back for about 2 weeks now and says there is no more starting issues and no check engine light coming on. It ended up being a bad ... Trouble codes: ECM50, ECM67.	5

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