Automotive Technicians Technical Discussion and Fixes for Aug 11, 2016

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	Help Request	Answers
	2001 BMW M3 3.2L innop VIN: WBSBR93421 Cruise innop, all buttons activate on scanner and dash snows cruise on.	View
	2006 BMW X3 3.0i 3.0L Hesitation, Surge VIN: WBXPA934X6 This is a well documented issue with E83s and a TSB from BMW about the fix. We have recurring fault 2961 SUBJECT MS45.1 Oxygen Sensor Faults 2960, 2961, 2973 and 2974 MODEL E46 3 Series (All models except 325xi and 330xi) E60 5 Series (525i, 530i) E83 X3... Trouble codes: 2961 (O2 Sensor Bank 2 Sensor 1 Exhaust Temperature Too High After Catalytic Converter Bank 2)	View
	2007 BMW X3 3.0si 3.0L temp VIN: WBXPC93497 Need a little help on this one,Problem is the left center vent and drivers vent are cold with a/c on but right center vent and passenger vent are luke warm,no codes,all flap motors work as commanded by scan tool and dash panel.Not sure how heater/evap case is ...	View
	2011 BMW 750i xDrive 4.4L No Start VIN: WBAKC8C50B Car cranks but no start, no related codes, in live data parameters say "allowed to start" no spark at ignition coils.	View
	1998 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R3W Vehicle came in running rough. found cam retard at +15 set cam retard at -2 since i can't get the distributor to set any better and tried to move teeth of distributor. Test drove to find misfires on 3 and 6. swapped plugs and wires with cylinder that was not m... Trouble codes: P0300	View
	2003 Chevrolet Tahoe LS 4.8L Stall VIN: 1GNEC13V23 Symptoms Tahoe will start and run for like a minute or two then stall might restart and run for a minute or two again and eventually will not restart customer said was driving instrument cluster needle went crazy and died Diagnostic Steps Performed/Parts Repl... Trouble codes: N0NE	View
	2005 Chevrolet Colorado Z85 LS 3.5L Stall VIN: 1GCCS13625 Well this is the first time i have asked for help this truck came in on hook spin but no start after it was droped it ran fine until it ran for about 30 min.then it dies and wont spin or do any thing untill you cycle key off then try to start it spins but wont...	View
	2005 Chevrolet Silverado 2500 HD 6.0L serial data VIN: 1GCHK29U35 Not sure what is happening on the CAN network. We have code U1000 in the IPC, Air Bag, Radio, transfer case & Instrument cluster. No codes in ECM or Transmission module. BCM has code B2585. HVAC has codes B0414, B0424, B1375, B3770. This truck was parked o...	View
	2008 Chevrolet Suburban 1500 LTZ 5.3L back up camera VIN: 3GNFK16388 Good evening all - and a HOT one it is in the Northeast!! The backup display screen on this Suburban is mostly static when in "Reverse". Customer says every now and then an image shows, then fades back to static. The screen responds to shifter and dash selec...	View
	1998 Chrysler Sebring JXi 2.5L No Start VIN: 3C3EL55H9W have this car no spark or inj pulse replaced the crank sensor again still wont start went further into the diag and found the computer will ground the auto shutdown relay when you turn the key on but when you crank it the ground for the relay goes away and get...	View
	2002 Dodge Caravan Ec 2.4L HVAC door actuators I am replacing the A/C evaporator on this van. Before re-installing the HVAC box onto the firewall, I'd like to test the HVAC door actuators. AllData only lists the location and R&R info for these actuators. Can anyone tell me if these are 5 volt or 12 volt ac...	View
	2003 Dodge Grand Caravan Sport 3.3L Air Bag VIN: 2D8GP44353 Van came in with SEL light on and misfire.Found wire harness for injectors shorted under intake manifold.Had to replace PCM also.Went with a numbers matching one from a salvage yard(Tech wasn't 100% sure it was the problem and didn't want to eat $900).Installe...	View
	2010 Dodge Challenger R/T 5.7L Misfire, MIL Lamp on VIN: 2B3CJ5DT6A Hello all, I want to run this past you because despite working on 80s gm cars, I still hesitate to pull the trigger on a pcm. Ok, 10 dodge, 10 k miles. Dead miss on cyl 7. Check spark from coil, ok. Check for injector pulse, none. Check and compare at cyl 3 to... Trouble codes: P0307	View
	2000 Ford Excursion Limited 7.3L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1FMSU43F3Y To my diesel mechanic friends. I so really need your help. This will be long so please bare with me. A couple of weeks ago, this customer brought their 2000 Ford Excursion 7.3L diesel to us with a bad transmission. We replaced the transmission and all was good... Trouble codes: P0284 (8 Injector failed balance test), P0476 (Exhaust pressure control valve)	View
	2002 Ford F-150 King Ranch 5.4L No Start VIN: 1FTRX18L92 Ran the ford flow chart, coming up empty, it all checks good. I'm simply missing something and hope one of you could correct me!	View
	2003 Ford Expedition XLT 4.6L Surge, Misfire, MIL Lamp on VIN: 1FMRU15W73 Truck on take off feels like something is holding it back at wide open throttle check engine starts flashing and sets random misfire mode 6 does not show any misfires fuel pressure solid 50 psi E85 less than 10% short-term long-term 0 to to 5% wide open thrott... Trouble codes: P0300	View
	2007 Ford Fusion SE 2.3L Surge VIN: 3FAHP07Z17 Vehicle from alternate shop installed used engine. Vehicle idle flares to 3500rpm at start up, settles down after a few seconds, then surges between 500 & 1000rpm's, worse with A//C on. Customer does not know if these symptoms were there before motor swap. ECM...	View
	2007 Ford F-150 XLT 4.6L Temp Guage VIN: 1FTRX14W07 Vehicle came in with coolant leaks,and running hot all the time which is why the above parts were replaced. Vehicle temp gauge climbs into the red when driven with a/c on only when driven at highway speeds. Never goes past half way with a/c off. Performed simu...	View
	2008 Ford Explorer Eddie Bauer 4.0L Abs VIN: 1FMEU74E58 This is a long read so please follow the whole story. Vehicle came in last week with ABS issue and code C1996 stored in module (active yaw control disabled). Customer stated that intermittently he would be driving and the service RSC light would come on and he...	View
	2009 Ford F-150 XLT 5.4L odometer VIN: 1FTPW14V29 Odometer reads ERR, all other cluster functions normal, no dtc's other than ABS C1300, C1963 which we diagnosed as a failed ABS pump motor but can't see any correlation to cluster issue. Shopkey not much help. I'm leaning toward internal cluster failure, but h...	View
	2009 Ford Focus SE 2.0L not sure VIN: 1FAHP35N69 low side goes into a vacuum. high side slight high.high side line cold. low side hose warm. compressor cycles and immediatley into a vacuum	View
	2010 Ford Focus SEL 2.0L No Start VIN: 1FAHP3HN8A After programming NEW PCM I found I had issues with PATS and scan test shows the two codes 1260-theft detected vehicle immobilized and 1622 Immobilizer does not match. I then gain access to PATS Functions. I tried Ignition Key Erase and the reprogramming of th... Trouble codes: 1260 (Theft detected Vehicle Immobilized), 1622 (Immobilzer does not match)	View
	2006 GMC Sierra 1500 SLT 5.3L Starting VIN: 1GTEK19T16 Vehicle came in with no start condition. Customer had boosted previously and vehicle started and ran fine. After sitting for a day the truck wouldn't start and would not boost. Truck was towed in. Pulled codes from pcm p1aab p1aac p1aad. There was no signal fr...	View
	2005 Honda CR-V SE 2.4L Unknown VIN: JHLRD78905 This customer initially stated that the air conditioning only worked in the morning. Everything seems to work ok until accelerating. The customer states that the a/c stops blowing cold altogether at times during driving. We first checked pressures and it app...	View
	2006 Honda Element EX 2.4L Poor Idle Quality, Stall VIN: 5J6YH18726 2006 element that only runs rough cold for the first few minutes and when you come to a stop it wants to stall , and if you have the a/c on or off it doesn't change. scanned for codes , none stored. the usual items were looked at cleaned the throttle body a fe...	View
	2013 Kia Rio EX 1.6L MIL Lamp on VIN: KNADN5A32D suspecting high pressure pump? anyone ran into same problem thanks? Trouble codes: P2191	View
	2008 Land Rover LR2 HSE 3.2L cooling fan VIN: SALFT24N18 owner has vehicle for some time. she states that car started overheating and took to several other local shops and they stated other issues, sold her those items and she repeatably asked for help on overheating and got no where with it. $dollars$ later, still ...	View
	2004 Mazda Tribute LX 3.0L bank 1 VIN: 4F2YZ94124 vehicle came in running rough and customer said this started when they had the catalytic converter replaced on vacation. lost power and would not accelerate. shop found the post converter to be plugged. once the vehicle came to me I performed power balance on ...	View
	2008 Mazda 3 i 2.0L overdrive VIN: JM1BK32F78 Vehicle has a intermittent downshift. When the downshift occurs the seatbelt light will illumiate and the seatbelt warning chime will sound. A key cycle will reset operation to normal. This may occur once on an extended drive. The symptom may not occur for a f...	View
	2011 Mercedes-Benz Sprinter 2500 3.0L Stall VIN: WDZPE7CCXB Anyone been here? Gas put into a sprinter diesel. Commercial account multiple drivers. Some one put in gas, it mixed with enough diesel to keep running. The company shop flushed it and replace a few hoses, that's it. I now have it in my shop. At idle, blue smo...	View
	2004 Nissan Altima SE 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1N4BL11E54 Hello this car came to us from the auction when it came in it had excessive blue smoke from the tail pipe and misfires. We ended up replacing the engine due to the smoking. now it runs with no smoke but has no power and a random misfire. fuel pressure is good ... Trouble codes: P0300 (Random misfire)	View
	1969 Pontiac Bonneville 7.0L headlight VIN: 262679R153 I am looking for the procedure to remove the headlights from this 69 Bonneville. AllData library shows remove the bumper. I have to think that in '69 there was a quicker way to change a headlight. All of the grille fasteners are between the grille and the radi...	View
	2002 Toyota Corolla CE 1.8L MIL Lamp on, lean VIN: 1NXBR12E62 HELP Toyota Techs! I am involved in yet another mess. The vehicle came to me with a check engine light with a P0171. Drove vehicle found that the calculated load was only going to 70%, easy fix right, replace Mass air flow sensor and had to fix it. WRONG, imag... Trouble codes: P0171	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 Acura TL 3.2L Driver's door mirror. VIN: 19UUA66264 Luis from California Hit it on the head. it was the mirror motor module. It would work when powered by a power prob but not by the memory module replace the motor module and all is well.	11
	2002 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GNES16S42 Cam Sensor for p0304, B1S1 Oxygen Sensor for circuit fault code Replaced PCM with used and reprogrammed confirmed fix. Trouble codes: P0340, P1171, P0130.	13
	2007 Chevrolet Silverado 3500 HD WT 6.6L MIL Lamp on, Reduced power mode VIN: 1GCJK33697 Yes it is fixed! I closed this help request over a week ago but apparently something went wrong. So I'll try again. Thanks everyone for your input. Someone told me to smoke the entire intake, engine, & exhaust system at the same time. If I would have done that... Trouble codes: P0101 (Maf sensor performance).	8
	2009 Chrysler Town & Country Limited 4.0L radio and amp VIN: 2A8HR54X69 We ultimately had to replace the radio. Those who responded the fuse required removal prior to disengaging the battery was correct.	7
	1999 Jeep Grand Cherokee Laredo 4.0L Excessive Emissions VIN: 1J4G258S9X First thanks for the many really useful replies. Lots of good informative info & a few that probably only read the headline. Several said check egr & use OE cat even after I said in my post no egr & I used oe cat. But oh well credit for trying. after some exte...	34
	2010 Kia Forte EX 2.0L Misfire, MIL Lamp on VIN: KNAFU4A23A Thanks for all the responses unfortunately I couldnt get the customer to come back for any further diag. My next step would have been to scope the cam/crank sensors as suggested. Thanks again for all the input. Trouble codes: P0303.	11
	2010 Kia Forte LX 2.0L No Start VIN: KNAFT4A26A Bill [...] was correct with this one. The cam and crank signals were not in sync as the timing marks were not lined up properly after putting at tdc and pulling valve cover. I am not sure why the timing being out of sync causes no spark but it is the case as i... Trouble codes: P0340.	7
	2007 Lincoln MKZ 3.5L air bag ocs VIN: 3LNHM28T27 thanks to all. Passenger front inner seat rail sensor fixed it.they are data sensers ohms means nothing. snap on scanner under pid fault could pin point it better than Ford ids .then perform zero weight with Ford IDS. Pids on IDS show failure with no descripti...	3
	2006 Mercedes-Benz S430 4.3L compressor engagement VIN: WDBNG70JX6 Steve from Florida was excellent help. the "ec" light was on and wouldn't cancel, which would cause the compressor to become operative. we used the buttons on the panel to scroll thru the readings on the panel, guided from Steve's diagnosis and found all sen...	5
	2011 Mercedes-Benz GL450 4.6L puch button starting VIN: 4JGBF7BE2B there are times when you are wasting a lot of techs time and energy by posting something and this was one of those times. that said I knew it had to be something unplugged under that interior panel and that is what it turned out to be.Roy from Connectic...	6
	2010 Nissan Sentra S 2.0L No Start VIN: 3N1AB6AP6A Loaded the power & grounds with a bulb like Chaus suggested & all was good. Unplugged MAF & A/C pressure sensor, still no 5 volt reference. Advised customer that the engine ecu needs to be replaced. Customer is broke & cannot afford the repair at this time. Th... Trouble codes: U1000 (CAN Communication Circuit).	5
	2007 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55267 we put the original injectors in and it fired up,the numbers was the same I guess they were just gummed up. thank you all for the help. keith	12
	1982 Porsche 911 SC 3.0L No Start, Extended Crank VIN: WP0EA0916C Thanks for all the replies. I gave away a ton of time checking and re-checking this car and could not yield any definitive failed tests. I checked the airflow plate/plunger for binding. Checked signal to could start valve both hot and cold. Checked cold start ...	15

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