Automotive Technicians Technical Discussion and Fixes for Oct 6, 2016

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	Help Request	Answers
	2003 Acura RL Premium 3.5L motor VIN: JH4KA96543 I have this car came in for overheat,lots of gunk in overflow ,upper hose swollen. Coolant fan works, Top up and used Blue juice ,,and chemical never changed color, I looked for an engine oil cooler but did not see one. Customer insists that 2 years ago same t...	View
	1996 Audi A4 Quattro 2.8L abs VIN: WAUEA88D0T After we replaced left front axle, the ABS system engages anytime under 10 MPH and braking. Are the speed sensors prone to fail on these models, don't see a lot of Audi's. Easy way to test this?? Thanks Mike	View
	2006 Audi A8 Quattro L 4.2L MIL Lamp on VIN: WAUML44E66 hey Audi gurus out there. how do you change the right side catalytic converter on this beast? checked alldata and says you remove the engine to do it and pays 14.1 hrs. what the heck? any body who has a short cut? thanks in advance.	View
	2008 BMW X3 3.0si 3.0L Unknown VIN: WBXPC93438 This bimmer wont synchronize transmission gears correct, its like internal clutchs fail, when this happens rpm go higher, and 4x4 light turns on, feel like car loose traction, actually i dont known what else to test, already replaced transmission, transfer cas...	View
	1998 Chevrolet C2500 Cheyenne 5.7L b2s1 o2 sensor VIN: 1GBGC24RXW customer states- vehicle runs rough at idle. check engine light on. codes- p0151 p0154 p0300 unplugged b2s1 and received .450mv bias voltage. replaced b2s1 02 sensor vehicle runs great, o2 sensors work properly. 2 days later, customer returns for same symptom...	View
	2001 Chevrolet Impala 3.4L Steering Shake Upon Accelleration. VIN: 2G1WF55E11 Car feels like both lower control arms are completely worn or subframe bolts are loose when driving. Steering input is "wobbly" under a load, but smooths out on coast. The shake/wobble is comparative to braking with severely warped rotors, only this is under ...	View
	2004 Chevrolet C4500 Kodiak C4C042 8.1L Fuel Lift pump operation VIN: 1GBE4C1E14 can not acquire proper wiring/ pinout for this truck engine combo. called a few very unhelpful dealers. scan tool is not able to see tank levels independently of each tank reading as far as i can tell and without proper wire and pinout i cant check signal wire...	View
	2007 Chevrolet Silverado 1500 Classic LT 5.3L Excessive Emissions, Runs rich VIN: 2GCEK13Z97 Truck came to me with p0101 (maf sensor range) p0172 (too rich bank 1) p0175 (too rich bank 2). Replaced the maf sensor with new delfi unit. P0101 went away but system still way too rich. Swapped map with known good one, no change. Checked fuel pressure, good ... Trouble codes: P0172 (System too rich bank 1), P0175 (System too rich bank 2)	View
	2007 Chevrolet Suburban 1500 LTZ 5.3L Radio VIN: 1GNFK16387 Came in with complaint of XM only cutting in and out and getting static. We replaced the antenna on a hunch and still no good. Suggestions?	View
	2007 Chevrolet Express 1500 4.3L fuel gauge VIN: 1GCFG15X97 Fuel gauge on empty, P0463 in PCM, 4.9 volts at purple sender wire at tank (is that supposed to be 4.9v?),connected substitute sender and no change at gauge, scanner reads 0%fuel level... so no reading through purple wire to pcm but...voltage at purple wire so...	View
	2005 Chrysler 300 C 5.7L MIL Lamp on VIN: 2C3AA63HX5 I am looking for A known good cam crank waveform for this car if anyone has one please let me know thanks for looking	View
	2006 Chrysler 300 Touring 3.5L No Start VIN: 2C3KA53G16 Have no start with no communication from any control module. Tried 2 different scan tools. Can spray starting fluid through throttle body and engine will run for 5 to 10 seconds. Really not sure what to test next, other than need to establish communication wit...	View
	1996 Ford Thunderbird LX 4.6L Misfire VIN: 1FALP62W7T Ok Group, I have this 4.6 Ford 1996 that is a problem child. It has a random misfire, I'll call it a 1/2 misfire (no codes either), when doing a cylinder contribution test #7 will randomly drop out the most, but other cylinders will also randomly drop out but ...	View
	2003 Ford F-150 Lariat 5.4L head lights VIN: 2FTRX18L03 hi and thank you in advance for any responses for this issue. we have this 03 ford f-150 from a used car lot. stalls when you put the head lights on. wont stall with parking lights on but head lights are on very dim, third brake light on with your foot off the...	View
	2005 Ford Escape Hybrid 2.3L p0128 VIN: 1FMCU96H75 P0128 comes back twice- Engine heats up and runs good.I stumped on this one.!!! Have to figure out how to keep the engine running all the time- think I keep the drivers door open?	View
	2006 Ford Mustang 4.0L No Start VIN: 1ZVFT80N96 Hey, thanks for any help. This mustang came from a used car dealer/repair, they installed a timing chain kit to get rid of noise. It ran prior to the timing job and now is a no start, no spark. I scoped the crank sensor at the PCM connector and the signal is p...	View
	2010 Ford F-150 XLT 5.4L Stall customer complaint of stalling-they put in a new fuel pump The FPDM in the back is running hot to the touch, never seen this before.I did find TSB for fuse relocation up in the BJB so did that, cause fuse was melting fusebox. Still runs hot afterwards. I measu...	View
	2013 Ford F-150 FX4 5.0L front differential VIN: 1FTFW1EF6D Our shop has three 2013 f150s all with 5.0 in them all three have white milky fluid in the front diffs. when we pull the cover it looks more like white paint then 80w90 with water in it. we have checked the vent hose and for TSB and called the dealer of cores ...	View
	2003 GMC Sonoma SL 4.3L Transfer Case VIN: 1GTCT19X73 Hi, The FWD will not engage, either 4-hi or 4-low. Key on has all the selector buttons flashing once then the 2-hi light remains on. When KOER in neutral pressing either 4-hi or 4-low buttons and you can hear the transfer case shift momentarily, the correspond...	View
	2014 GMC Terrain SLE 2.4L fuel gauge VIN: 2GKALREKXE Customer complaint is vehicle runs out of fuel at 1/4 tank. Dropped the tank and removed both fuel tank modules and checked resistance on both fuel level sensors. Both checked good. Reinstalled both modules and supplied ground and voltage to fuel pump. Primary...	View
	2002 Honda Accord SE 2.3L Misses Shifts VIN: JHMCG56792 Hello everyone, Vehicle came in for a hard 1-2 shift and D4 lamp flashing. Sometimes as per customer vehicle would get stuck in gear(never confirmed on test drive). Vehicle was test driven confirmed 1-2 shift concern and D4 flashing if you turned off car let...	View
	1995 Jaguar XJS 2+2 6.0L Cuts out VIN: SAJNX2340S Hello Fellow Techs, This 6.0 liter,v-12 Jaguar runs well in all respects except for an engine cut out that happens intermittently.Happens cold,warm,hot,on cruise and acceleration.Problem doesn't last long enough to get a diagnosis.It feels like you lose multi...	View
	2007 Jeep Wrangler X 3.8L traction control VIN: 1J4FA24147 Hello iATN, we have this Jeep here that falsely kicks on the traction control under acceleration intermittently. When this happens, the TC light flashes as if the wheel(s) is (are) spinning and the throttle is cut so you can't accelerate. I've driven it with t...	View
	2006 Maserati Quattroporte Sport Gt 4.2L 1st Gear VIN: ZAMCE39A36 Customer brought car in- complaints is that it is jerking ( shifting) - like your learning how to drive a manual transmission/ clutch - road test to confirm complaint- after i did a quick clear of all modules, car acted up- very intermittent twice - i was ho...	View
	2007 Nissan Murano SL 3.5L Driveline VIN: JN8AZ08W67 The Murano not binds up every time you try to turn.It will not unlock the rear end.I know this is what took out the transfercase.Went to my local dealer and they had no desire to look at it and said they had no techs that had taken one apart. Can someone expla...	View
	2011 Nissan Rogue S Krom 2.5L No Start, No Communication VIN: JN8AS5MV7B Vehicle was towed in as a no-crank. Battery was discharged upon arrival. Customer stated that vehicle accelerated poorly after pulling out of the driveway, then when she brought it back home it would no longer crank. Customer stated that battery was removed an... Trouble codes: P1212 (TCS/Communication Line Circuit), P1610 (NATS Malfunction), P1612 (NATS Malfunction), P1777 (Stepper Motor Circuit - No Voltage Change), U1001 (CAN Communication Circuit Fault), U0101 (CAN Communication Circuit)	View
	2006 Pontiac Vibe 1.8L No Start VIN: 5Y2SL65886 After vehicle sits for a few days on first start up is an extended cranking no start. Found no Spark, injector pulse or Fuel pressure on initial crank for a few seconds then will start and have all three of those. I do have scan tool communication when conditi...	View
	2004 Volkswagen Phaeton V8 4.2L Radiator Fans VIN: WVWAF63D54 This is a great forum an thank u for your help in advance, car came in with complaint of no a/c until driven for about 30 minutes then good until shut off and restart,fans not coming on with A/C and i checked fans operation by coolant temp, car will overheat w...	View
	2006 Volkswagen Beetle 2.5 2.5L bell housing VIN: 3VWSW31C36 This is an automatic with flexplate and torque convertor set up, not dual mass flywheel setup. I am getting a "dry bearing" type noise from the bell housing area while running at idle, in gear with foot on brake and also while driving. It changes with engine s...	View
	2010 Volkswagen CC Sport 2.0L engine VIN: WVWMN7AN9A vehicle came in and had basically all dash lights on, replaced battery and did coding and had only check engine light on, cleared codes and stayed off, when customer picked up the vehicle was gone for an hour and customer called back and check engine light cam...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2008 BMW 328xi 3.0L left front headlamp VIN: WBAWC33518 car is fixed.it had a bad footwell module.my main reason that I posted this issue to begin with was uncertainy on the meaning of the circuit 30 code.did it mean 30 missing as an input TO the footwell,or missing 30 output from footwell. In this case it ...	7
	2010 BMW 535i xDrive 3.0L MIL Lamp on VIN: WBANV9C51A Ok, so this one is fixed! I swapped the spark plugs and coils between banks and the issue did not follow however, I had noted that two of the plugs where blacker than the rest cylinder five and six. So, I moved injectors five and six to cylinders one and two a... Trouble codes: 29E1, P0175 (Bank two system too rich).	7
	2010 Buick LaCrosse CXL 3.0L MIL Lamp on VIN: 1G4GC5EG4A Drove vehicle and no drivability problems or return of codes. Only documentation found was TSB #PI0549 having codes P0700 and/or U0100 set. This condition may be caused by an internal engine control module (ECM) anomaly. I Replaced ECM and had programmed to ... Trouble codes: P7000, U0730, U1000.	5
	2007 Cadillac Escalade 6.2L starting circuit VIN: 1GYFK63867 Thanks to Robert and Michael after doing some testing, is was proved there was a short in the fuse box. Replaced fuse box the truck fired right up.	8
	2006 Chevrolet Tahoe Z71 5.3L spongy brake pedal VIN: 1GNEK13Z86 turns out we got a bad new master cylinder, replaced master cylinder, gravity bleed for awhile brakes work good now	10
	2008 Chevrolet Avalanche LS 5.3L Misfire VIN: 3GNEC12098 thanks to everyone who help out. al [...] hit it right on the head!!! they were 180 out, ill tell you I don't know how can my tech have put those lifter 180 out they have a guide!! new set of head gaskets and is ready. thanks guys	18
	2008 Chevrolet Silverado 1500 WT 5.3L Engine VIN: 2GCEK19J18 Thank you all for the replies. We already were planning to run some engine flush through after service...And still will be. We did clean the heck out of that Cyl#4 valve, it was the only valve that looked remotely like that. We now know why... #4 exhaust lif...	17
	2005 Dodge Grand Caravan SXT 3.8L emergency brake VIN: 2D4GP44L55 Thanks to all replied. I finally got the vehicle back and drove around for some time with the emergency brake on slightly, and I got the shoes to seat in and it holds much better. Thanks again for all who replied.	9
	2008 Dodge Sprinter 3500 3.0L Steering angle sensor VIN: WDYP445758 The owner had taken the vehicle on a road trip and will be back in the spring. I need to look into the possibility of reflashing the module to see if its possible that flash a 2015 software load since it's a 2008. Based on my experience with the Freightliner d...	3
	2010 GMC Sierra 1500 WT 4.3L abs VIN: 1GTPCTEX6A Thanks for all the input.Had to send to a shop with a better scan tool .Ebcm was replaced at some earlier time with the wrong part.On this truck you could turn off traction control with switch in dash.Ebcm in truck did not have this feature.New part,lights out...	12
	2012 Honda CR-V EX-L 2.4L Door latch VIN: 5J6RM4H79C I did not get car back to retest, but owner did go to dealer and got the same diagnosis that I had, testing necessary at fusebox and possible replacement if all inputs are good. Owner took car back from dealer and has since traded it in. Owner did give me an i...	7
	2008 Jeep Grand Cherokee Limited 3.0L No Start, Almost starts VIN: 1J8HR58M88 Wade from Colorado hit this one on the head. Doing a pin-by-pin circuit check at the PCM, we found the water-in-fuel sensor signal circuit shorted to ground. Unplugging the sensor made no change, so we started chasing wires. We found the wiring harness from ... Trouble codes: P0607 (ECM Internal Circuit Malfunction).	3
	2004 Mini Cooper 1.6L lack of power VIN: WMWRC33494 Well thank you guys for your comments and advice, indeed the transmission is bad, after some more testing, starter whining from the transmission, and you can even floor the gas pedal without going anywhere for up to 3 to 5 seconds, this transmission is bad cus...	4
	2001 Mitsubishi Montero Sport Limited 3.5L Reverse VIN: JA4MT41R71 I replaced transmission with another unit vehicle is doing great. i didn't do any pressure checks but i did inspect the wiring. i removed the pan to find metal debris and it had flushed lines and new cooler. I suspect we just got a unit that was ready to go. ...	3
	2004 Nissan Maxima SL 3.5L Safety VIN: 1N4BA41E04 It was the ABS module causing all this trouble, Ordered used one & everything start to communicate & I got my spoeedometer to work perfectly, Thanks	5
	2003 Oldsmobile Alero GL 2.2L Stall VIN: 1G3NL52F93 Faulty pressure sensor ontop of NEW OE FUEL PUMP, forcing excessive fuel trims cutting off the injector pulse. Initial cause was in fact pass key issue but after reflash and key reprogramming after install of new pump is what lead me to start checking the pump...	8
	2006 Pontiac Torrent 3.4L Instrument Cluster VIN: 2CKDL73F06 Richard from Michigan, Specmo was the answer. Just gave them the cluster part # and they fixed me up with bulbs. Thank you to all that replied.	10
	2004 Saab 9-3 Arc 2.0L MIL Lamp on VIN: YS3FD79Y64 I replaced the ECM & that took care of the problem, Speacial thanks to Scott he was right on the money, Defective PCM	8
	2008 Volkswagen GTI 2.0L abs VIN: WVWFV71K88 Thanks everyone that reply Ross-tech wiki did point me in the right direction we bought the cable and did the basic setting and the adaptation and that took care of the problem...	3

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