Automotive Technicians Technical Discussion and Fixes for Apr 21, 2016

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	Help Request	Answers
	1999 Acura CL Premium 3.0L Surge VIN: 19UYA2252X Surges at idle shortly after startup. Upstream oxygen sensor bounces from 0 to .8 and idle starts surging as the fuel injectors bounce from 0ms to 6ms. The system flickers in and out of closed loop. All this occurs in unison on scanner. Fuel pulses change as f...	View
	1999 BMW Z3 M Coupe 3.2L MIL Lamp on VIN: WBSCK9337X It came in with codes for tps, and tank pressure sensor. Testing found the 5 VOLT reference was missing to TPS. Instead of pulling apart harness, simply cut wire at PCM and TPS and put a jumper. Now the throttle works/reads perfectly and won't code for this an... Trouble codes: 253 (shutoff valve vent system jammed closed)	View
	1989 Chevrolet C2500 Cheyenne 5.7L battery VIN: 2GCFC29K3K I have removed every fuse and disconnected every circuit breaker I can find, removed an unused CB radio, disconnected the ECM and ABS module, and various other devices under the hood and under the dash. I still have a 1.8 amp draw on the battery, although that...	View
	1994 Chevrolet Corvette 5.7L a/c VIN: 1G1YY22P2R Customer concern is that the A/C control head controls become unresponsive after about 30 seconds of KOEO or KOER. "Frozen." Cycle the key (or unplug the control head and plug back in), and the controls will start working again for another 30 sec or so. Sound...	View
	1999 Chevrolet C2500 Suburban 7.4L Misfire, MIL Lamp on VIN: 1GNGK26J7X The misfire counter shows 1 miss on cyl 1, 2 misses on cyl4, then no miss at all. Rev a few times and get a miss on cyl 4. It is not consistently missing. I think the negative trim is from the slight occasional miss, allowing unburned fuel into the exhaust. Cl... Trouble codes: P1133 (O2 lean)	View
	2007 Chevrolet Silverado 3500 Classic LS 6.6L No Start VIN: 1GBJK34D17 We towed this duramax in from another shop that replaced brake lines then took vehicle for test drive and the truck died. They replaced fuel filter and stopped there. I got the truck scanned for codes. only codes present were for a couple of glow plug circuits...	View
	2008 Chevrolet Impala SS 5.3L Mechanical VIN: 2G1WD58C68 Tow in, stalled going down the road. Rolls over with no compression ,loosened rockers and rechecked compression 150 psi.. Rockers are all moving while cranking. no abnormal noise while cranking, oil looks good customer says they no problems up to this point. Q...	View
	2009 Chevrolet Malibu LS 2.4L no start VIN: 1G1ZG57B49 car came in with a no start. went to scan for codes it says no communication so check others abs trans air bag all say same when scanning for codes but it will let me read data but no codes. im thinking its a ecm but would like others input tks	View
	2010 Chevrolet Impala LS 3.9L engine VIN: 2G1WD5EM2A hello all this car has just a very slight misfire just enough to set the check engine light on actually the first five or ten minutes cold you dont see the miss on the scanner also if i raise the rpm even a 100 rpm i dont see the misfire it comes up random mis...	View
	2006 Chrysler Crossfire Limited 3.2L Starting VIN: 1C3AN65L26 car was towed in no crank, found code p2071 start enable from sentry key remote enty module not sent, cleared code will not crank, if you undo battery will crank 3 time and then no crank also sets a hard fault 1174and 1175, steering angle sensor malfunction,ca...	View
	2006 Chrysler Town & Country Touring 3.8L Poor Idle Quality, Stall VIN: 2A4GP54L06 It's been a while since I have had to post. This Van came in with a complaint of stalling at stops and hard starts. I inspected it and duplicated issue. It had no idle flare first start in the morning. the idle seem like it was always at minimum idle always. I...	View
	2007 Chrysler PT Cruiser Limited 2.4L transmission VIN: 3A8FY68887 Car came in with a intermittent lock in second gear and a P0882 code. I checked the system and all the wiring and everything was fine. when the code sets I loose power to the transmission control solenoids from the PCM/TCM. I cycle the key from on to off then ...	View
	2010 Dodge Ram 1500 SLT 4.7L front actuator VIN: 1D7RV1CPXA DTC C1464, wont clear, front axle disconnect sensor circuit. Could not find any archived help, surely this cant be the only ram with this problem.Any guidance would be appreciated.the truck has been lifted 4-6 inches.no power on the pink wire w green stripe at...	View
	1992 Ford Mustang LX 2.3L No Start, Surge, Cuts out, Stall, Misfire VIN: 1FACP44M8N Have a weird problem with a 1992 Mustang. It has an intermittent no start condition. On occasion, during the no start condition, the constant control relay module will click abnormally, energize the fuel pump intermittently, and it will actually have intermitt...	View
	1992 Ford E-350 Econoline Club Wagon Custom 4.9L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1FBJS31Y7N to Ford techs out there. got this e350 that's burning very rich and misfires. owner said it sat for 2yrs without being driven. plugs look fine, but replaced cap & rotor due to corrosion. have replaced map sensor still no change. runs better if you unplug the v...	View
	2006 Honda Odyssey Touring 3.5L Left sliding door VIN: 5FNRL38896 Hello Honda Techs, I have this Odyssey that the left side power sliding door does not work.. If I pull the inside or outside door handles, it does not make a sound of any kind, if I push the button on the dash, it clunks and starts to open and about the time t...	View
	2008 Honda Civic Hybrid 1.3L Hybrid Battery VIN: JHMFA36258 Hello fellow techs. I would like to thank everyone in advance for your input and help. I have this honda civic hybrid that came in with battery light would intermittently come on and check engine light is on. The i ran fault codes and found code p0a7f for hybr...	View
	2008 Jeep Grand Cherokee Laredo 3.7L No start VIN: 1J8GR48K58 Vehicle came in for intermittent no start, vehicle will crank. Customer states only happens after some driving, once engine is warmed up IF and only IF he leaves the car for about 5 minute, the vehicle doesn't start. Finally able to duplicate problem, took a s...	View
	2013 Kia Sorento LX 3.5L MIL Lamp on VIN: 5XYKTDA27D Most common hit on identifix for this car. Customer has returned twice with this code. Each time manually testing all components reveals no faults. Internet searching has shown that a calibration is needed when a code is setting but components are not to bla... Trouble codes: P200A	View
	2008 Lincoln MKX 3.5L extended cranking VIN: 2LMDU68C78 My wife's vehicle purchased used 6 months ago usually starts normally No CEL observed Mostly long crank after hot soak 10-15 mins 1 time long crank @15-20 secs cold I don't have access to much equipment as I am managing oil change shop I'd say fuel pump as a W...	View
	2010 Mazda CX-9 Sport 3.7L Key Fob VIN: JM3TB3MV4A Hello Mazda tech's, we have a new key fob we have been trying to program, info we are using is off the web and YouTube. Not working. We are six hours from the nearest dealer, so are trying to save this customer a long drive. So is anyone out there that has had...	View
	2005 Mercedes-Benz C230 Kompressor 1.8L compressor pulley VIN: WDBRF40J85 Diagnosed as bearing noise of a/c compressor pulley, confirmed my multiple TSBs. Directions sourced from both Alldata and Mitchells report the same. Initially warns of not left handed thread!, but instructions state 2 methods: Method A (preferred): Hold shaft ...	View
	2002 Nissan Xterra SE 3.3L Hesitation, Misfire VIN: 5N1ED28Y82 this got put off on me since my techs are busy. tip in hesitation, back fire thru intake sometimes. no codes 21 inches of vacuum at idle and steady that at 2500 rpms timing stays steady on acceleration. new plugs, wires, dist. and Maf sensor Tps sweeps nice. O...	View
	2007 Subaru Outback 2.5i Limited 2.5L MIL Lamp on VIN: 4S4BP62C27 Hello, i am having trouble with this subaru. We replace middle muffler, rear brake pads and power steering pump. No problem and customer picked up car. They came back the following day with the following codes. (i do not believe the work we did has anything t...	View
	1998 Toyota Camry CE 2.2L MIL Lamp on VIN: JT2BG22K3W Hello iatn,i really need help with this one.Vehicle came in w/code po115,coolant temp.sensor and po505 idle air control problem .so i use my modis snap on scaner test idle control by raise idle up & down but idle can not go down below 1k.But it can go up 1500,... Trouble codes: P0505	View
	2009 Volkswagen Jetta Wolfsburg Edition 2.0L cylinder 3 VIN: 3VWRJ71K69 removed head and had checked at machine shop and shaved head, have done leak down test passed, vvt appears to be working, replaced number 3 injector, replaced pcv valve, rings appear to be fine, filled cylinders with solvent and no obvious leakage, cylinder nu...	View
	2009 Volkswagen Tiguan SE 2.0L Misfire, MIL Lamp on VIN: WVGAV75N99 Ok VW guys I have a problem with this tiguan I can't seem to figure out weather it's me or, what. This one came in with a misfire on number 4 cylinder. did the usual swapped plugs and coils. no change. misfire occurs at idle and goes away mostly after the vehi... Trouble codes: P0301, P0302, P0303, P0300	View
	2012 Volkswagen Golf 2.5L MIL Lamp on VIN: WVWBB7AJ3C I keep getting a "No activity" on center HEGO sensor DTC. I have confirmed the heater is operational and wiring is intact. It uses a wide band 5-wire oxygen sensor, so I am really lost on what signals to scope check. I am sorry I don't have the trouble code wi...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2003 BMW M3 3.2L Unknown VIN: WBSBR93473 Thanks for all the great responses many missed this was a smg car but oh well. The fix was to flush the hydraulic system for shifting and clutch operation CHF 11S. Also flushed the fluid in trans and replaced with red line syn 75 80 gear lube. All seems to be ...	11
	2004 Buick Rainier CXL 4.2L MIL Lamp on VIN: 5GADT13S14 Performed crank/cam correlations scope test again. Found cam and crank out of time. Used waveform library and a 2006 GMC test car to compare the wave form. Removed valve cover and exhaust gear. Found jasper phaser not clocked full advanced. Installed dealer ca... Trouble codes: P0016 (Cam Crank Correlation).	8
	2004 Cadillac Escalade 6.0L Starting VIN: 1GYEK63N64 so check all grounds and battery connections and installed new starter into truck so far so good thanks for the information guys	15
	2010 Cadillac SRX Luxury 3.0L not sure VIN: 3GYFNDEY4A After some more investigation we found the front u joint would at certain speeds/rpm the joint would act like it seized . We removed the complete driveshaft and found at a very slight angle it would bind sometimes , if it went past it was fine . Being a three ...	1
	1999 Chevrolet Express 1500 5.7L Hesitation, Stall VIN: 1GCFG15R1X RE-CHECKED AL [...] READINGS REPLACED FUEL PUMP SAME PROBLEM, LOOKED AT I.A.T SENSOR READING WAY HIGH BUT CHECKED GOOD WIRING CHECKED GOOD TO P.C.M., TOOK A CHANCE AND REPLACED P.C.M. HAD GM DEALER DO A FLASH VAN RUN GREAT DROVE OFF AND ON TWO DAYS THIS ONE BEAT ME...	46
	2011 Chevrolet Traverse LS 3.6L abs VIN: 1GNKVFED4B after checking all wiring and the sporatic movement of the left rear speed without it moving we sent to the dealer. ebcm was the ultimate fix. thanks to everyone who took time to reply and have a good summer.	7
	2002 Dodge Ram 1500 Van 3.9L No Start VIN: 2B7HB11X12 We were unable to figure this one out other than We feel we have another bad PCM but the vendor that the customer got the part from is saying that is impossible and the refuse to warranty it again and the customer is refusing us installing a reman from another...	14
	2006 Dodge Dakota SLT 4.7L Rack or Pump VIN: 1D7HW48N66 Thanks for your replies. Most of you were leaning towards a defective rack and you would be right. Ordered another and installed it and it steers perfectly. Never had a car feel like that before. Thanks again.	8
	2001 Ford Explorer XLT 4.0L abs module VIN: 1FMZU73E31 I have tested all three wheel speed sensors and none of them are dropping out at any speed. They scope normally and ohm test well within spec's. I also checked key on power loaded and it is good as well. The abs computer is at fault.Customer does not wish to ...	19
	2002 Ford Escape XLT 3.0L Oil Pressure Gage VIN: 1FMYU04162 As Joe from NJ suggested we checked the voltage on the feed wire to the sending unit. It was 10v compared to 12.5 at the battery. Rather then chasing down the voltage drop, I suggested to the customer to install a pressure gage under the dash. He said he would...	5
	2005 Ford Escape XLT 3.0L torque converter VIN: 1FMYU03125 Yup, it was the torque converter. Never experienced an intermittent tc problem like that. It was very satisfying to put all that much time in a repair and have it come out for the good. I would like to thank all who responded, I realize this seemed elemen...	10
	2007 GMC Acadia SLT 3.6L delayed shit VIN: 1GKEV33747 As we narrowed down the possible causes for the bad shifts on this trans, myself and most of the replies talked of fluid issues on the 35r. maybe the valve body, a bad o-ring or a piston seal. I installed a shift kit upgrade in the valve body with some improve...	6
	2009 Infiniti FX35 3.5L extended crank VIN: JNRAS18W29 Thanks to all who responded, The fix was the fuel injection service the injectors were leaking once in a while. customer did not want to replace all 6 since after the fi service the problem was almost gone. Added some injector cleaner to the fuel tank to hopef...	9
	2011 Infiniti QX56 5.6L Oil Jet VIN: JN8AZ2NF8B Timing Chains and Oil Jet were able to be replaced without the use of the tool.	1
	2000 Mazda MPV DX 2.5L Speedometer/Cruise Control VIN: JM3LW28G5Y I have replaced ABS-CU unit with 2 separate used ones, no success. I have also replaced instrument cluster with know good one from a friends car, no success. Found short to B+ Brn/Wht wire between ABS-CU and DLC 1 terminal 2, repaired wire and still no speedo...	8
	1992 Mercedes-Benz 300SL 3.0L Poor Idle Quality, Stall VIN: WDBFA61E4N Thanks to all who responded after looking over the car and doing some testing, I found 2 vacuum leaks one at fuel pressure regulator and one at 2 of the injector seals. Both items were very expensive repairs so I opted to compensate as best as possible by adju...	4
	2009 Mini Cooper S 1.6L Speed sensor VIN: WMWMF73549 I was unable to find any information to assist with repair, I traced all wires, there was no problem with the bearing or replacement sensor. I suspect the problem is internal to the ABS module. I referred the owner to the local MINI dealer. Thanks to those ...	6
	1998 Oldsmobile 88 Royale 3.8L temp gauge VIN: 1G3HN52K9W thanks guy & gals for all your help found the url line from the computer #15 tan wire to the cluster dropped out i think it was at the cpu. repaired the line and customer is happy.	7
	2001 Toyota Tacoma S-Runner 3.4L 4wd VIN: 5TEWN72N81 Well feeling somewhat stupid,even though electrically all tested good,we did find that a patch harness going fromm A.D.D. to main harness had small amounts of melted insulation. it was routed wrong.I had inspected harness but did not see it until all accordian...	3
	2010 Volkswagen Jetta SE 2.5L MIL Lamp on VIN: 3VWRZ7AJ1A Thanks for the help. There was a considerable amount of carbon buildup inside the valve. Cleaned and completed the drive cycle. Trouble codes: P0491 (Secondary AIR Insufficient flow).	9

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