Automotive Technicians Technical Discussion and Fixes for Aug 6, 2015

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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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	Help Request	Answers
	2001 Buick Century Limited 3.1L Compressor VIN: 2G4WY55J91 This thing is kicking my butt. Customer complaint of A/C blowing "hot" when driving on the highway. During test drive I found that at highway speeds the compressor would turn off and would not cycle back on. Brought the car back to the shop and hooked up the ...	View
	2003 Buick Regal LS 3.8L No Start VIN: 2G4WB52K73 Intermident no crank,if you repeatly try it will crank & start,sometimes starts on first try, At all times crank or no crank it has no cumminication with any modules,OBD power & grounds are good,shift interlock doesnt function,check engine light does come on w...	View
	2002 Chevrolet Express 3500 5.7L No Start VIN: 1GBJG31R92 I was doing an injector balance test using the Modis Ultra on the now sealed-off rail of this CFI injected truck. The test completed nicely ONCE, giving me the results I expected. 6 of 8 poppets are stuck. However, I wanted to show my tech the results and brou... Trouble codes: P0300	View
	2004 Chevrolet Silverado 2500 HD 6.6L air conditiong VIN: 1GCHK23174 the ac blows cold for 5 or 10 minutes then the compressor shuts off. Bypassed the switches and it still stays off. There is something the ecm is telling to keep the ac off. no codes stored. If i jumper the relay it will freeze you out of the thing	View
	2007 Chevrolet Silverado 1500 LT 4.8L Hvac VIN: 1GCEK19C17 Customer came back stating popping noise under dash. Found acuator popping. Customer stated that before noise started you could switch hvac from defrost to vent fine. Then it started going from defrost to vent , then goes back to defrost by itself. After check...	View
	2007 Chevrolet Cobalt LT 2.2L coolant temperature VIN: 1G1AL15F57 This Vehicle Came in on the hook no start found low cylinder compression head redone by local machine shop new time chain comp kit , new coolant pump , balance chain , thermostat coolant temp sensor, etc. put together now it over heats cant get air purged out ...	View
	2007 Chevrolet Tahoe LTZ 5.3L Air bag D de	View
	2007 Chrysler PT Cruiser Limited 2.4L Light On VIN: 3A4FY58B27 Just installed a tipm. Now will not communicate with abs. Tried network config, did not work. Have account with techauhtority. New to chrysler programming. Any suggestions?	View
	2000 Dodge Ram 1500 Van 5.2L Poor Idle Quality VIN: 2B6HB11Y7Y Complaint is when starting vehicle cold it runs ok for a few seconds then starts spitting and sputtering, if you give it some gas the problem goes away until the next cold start. There is no MIL and no codes. vacuum is 18 in. at idle, checked for manifold vacu...	View
	2006 Dodge Charger R/T 5.7L Cuts out VIN: 2B3KA53H56 I have this 06 hemi charger with an instant stall. This mainly happens hot but also can happen cold. Plugs were replaced with mopar plus the crank sensor also mopar. I have had this type of stall before but cold usually. This car will actually clear codes and ... Trouble codes: U0100, P0700	View
	2007 Dodge Sprinter 3500 3.0L a/c VIN: WDPPF44537 A/c unit was activating only when maniputating on/off and temp / door buttons, then would only plow cold for a few min. Then stop. Because of the control head malfunction replaced with used controler. Now blows cold untill you drive, then starts to blow hot. T...	View
	2008 Dodge Ram 2500 SLT 6.7L Stall VIN: 3D7KS28A08 This is for the Dodge diesel techs. Before we get started this truck had had the egr deleted and programmed. Truck was towed in with complaint of stalled while driving, then restarted ok. Next stalled and no start no spin. When the truck arrived the following ... Trouble codes: U0100 (Loss of comm pcm/ecm), U0141 (Loss of comm with tipm)	View
	2005 Ford Mustang GT 4.6L A/C Clutch relay VIN: 1ZVFT82H65 Any help is greatly appreciated. To start with, I just found out this is a Katrina car (WOOHOO!) It's intermittently losing A/C request signal to the clutch relay. I have all pressure switches bypassed so the ECM thinks all is good. A/C request signal goes fro...	View
	2006 Ford F-350 Super Duty XLT 6.0L Unknown VIN: 1FDXE47P36 vehicles ac will operate great until running down the road and it will build pressure and shut ac off until you shut ac off for 5 minutes and turn it back on. leaning towards fan clutch or evaporator core plugged?	View
	2010 Ford Transit Connect XLT 2.0L spider and side gears VIN: NM0LS7BN4A Arrived with bad knocking when turning, pulled trans to disassemble and found spider gears and side gears in very bad condition. The tires still look new and are the same size.(205/65/15) I don't see anything else wrong, the ring and pinion look fine. I can't ...	View
	2004 GMC Yukon SLE 5.3L Accessories VIN: 1GKEK13T94 See if you guys can help me with this one the problem I'm having is with the driver door modual this is what happens with the truck on the run position all windows work and mirrors the minute I start the truck I lose the driver door windows and mirrors but all...	View
	2004 GMC Envoy SLE 4.2L Cylinder Block VIN: 1GKDS13S54 Replacing cylinder head, 5 head bolts broke off during disassmbley. 3 came right out, one had to drill out, 5th one I have to heli-coil. Mitchell states thread is M11 X 2.0, cannot locate heli-coil anywhere for this thread pitch. Does anybody known of a suppli...	View
	2007 Infiniti G35 X 3.5L Cooling Systems VIN: JNKBV61F97 Vehicle came i for over heating. Had thermostat replace not sure if it oem or not. Over heats at idle bring rpm at 1200 gauge drops down to normal. Try to blled the system multi time with lifting the front up and using vaccum system .has good heat. Lower hoses...	View
	2005 Jeep Wrangler Unlimited 4.0L MIL Lamp on VIN: 1J4FA44S85 Hey gang, This vehicle came in with an B2S2 heater circuit fault that another shop didn't want to spend any more time with. The downstream oxygen sensor had a broken connector and was zip tied together. I replaced the pigtail for the sensor and that corrected ... Trouble codes: P0138 (O2 Sensor Circuit High Voltage Bank 1 Sensor 2), P0158 (O2 Sensor Circuit High Voltage Bank 2 Sensor 2)	View
	1991 Mercedes-Benz 300CE 3.0L Fuel Gauge, Temp Gauge, Oil Pressure VIN: WDBEA51EXM Hey there! We have this old Mercedes here. Super nice customer but we are not overly familiar with these cars. The fuel gauge, temp gauge, and the oil pressure gauge are inop. We have checked all powers and grounds, ran a new ground to the cluster as some po...	View
	2009 Mercedes-Benz C180 1.8L MIL Lamp on MIL is on, on this C180 kompressor blueefficiency mercedes benz. DTC is P2263. MAF replaced with OE. new plugs, air-filter and fresh oil. I do not see any obvious leaking hoses. There is a lack of acceleration, though once it has picked up speed it is not bad.... Trouble codes: P2263	View
	2002 Mitsubishi Montero XLS 3.5L lifters noise VIN: JA4MW31R22 Hi to all fends need some help today This truck come with lifter noise without any other issues change oil filter with no change All 24 lifters later same noise engine inside looks very clean check timing belt tensioner looks good Oil pressure in spec Thanks	View
	1995 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G3GR62C3S good day all. i have this olds, she had a stuck open EGR. that was the only code stored. replaced EGR now i have a code 80 tps/idle learn incomplete. i have attempted to clear code several times, unhooked battery, connect leads together. and run relearn also s... Trouble codes: 80 (tps/idle relearn incomplete)	View
	2012 Ram 2500 ST 5.7L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3C6TD5HTXC Hello IATN guys, This vehicle came to us from a fleet company which has a good reputation for maintaining their fleet and who idles their trucks to death. Customer concern is that the truck runs poorly and has a check engine light on. The main reason im puttin... Trouble codes: P0302 (Cyl 2 misfire detected), P2299 (Brake pedal position/ Accelerator pedal position incompatable)	View
	2003 Saab 9-5 Aero 2.3L Keyless Entry VIN: YS3EH45G33 Keyless entry does not work with either key fob. Central locking works with buttons inside the vehicle or using the door lock cylinder. Verified both fob batteries good, both keys start the vehicle, and have attempted to sync both. Have verified all fuses fo...	View
	2004 Saab 9-3 Linear 2.0L MIL Lamp on VIN: YS3FB49S74 Thank you in advance. Originally this Saab had p0201, p0202, etc for injector circuit problems. After testing the circuits and checking with identifix, we decided it was a problem with the ecm. We ordered a new ecm from Saab, and installed it, adding it in wi... Trouble codes: P0610	View
	2000 Saturn SL1 1.9L cat unready VIN: 1G8ZG5282Y Hello, This Saturn at idle is at -30 stft -40 ltft, Looked everywhere for a vacuum leak, sprayed a few times while monitoring the front 02 with no luck. replace the fuel injectors witch made it slightly worst. map reads 1.20v at 700 rpm. at 2000 rpm the stft g...	View
	1992 Toyota Previa LE 2.4L No Start, Stall VIN: JT3AC12R5N No fuel pump actuation. Replaced pump (Carter. Some modification required for fitment) and filter. Still no start. Noted that CEL lights only intermittently with KOEO. Checked underhood fusible link block: clean, no corrosion. EFI main relay clicking on and of...	View
	2005 Toyota Sienna LE 3.3L Rear blower motor VIN: 5TDBA23C75 Hey everyone just want to make sure I am headed in the right direction on this one. I have this van that the rear blower motor is not working. I replaced the relay for the reason above. That did not fix it, I put my relay bypass switch in and it will work. I a...	View
	2004 Volkswagen Beetle GLS 2.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 3VWGK31C64 Customer complained of car stalling had to keep revs up at lights. Scanned car [ross tech vag com] found code P0102 P1475 P2181 tested for power at maf plug. 12volts on pin 2 5 volts on pin 4 just like there should be. Replaced maf with bosch part number 63-12... Trouble codes: P0102 (mass airflow low)	View
	2009 Volkswagen CC VR6 3.6L fog lights VIN: WVWGU73C39 This car came from a body shop with fog lights inop. All fuses were tested and are ok. With VAG I can read codes from central elec module and it has code 01800 implausible signal from headlight switch. There is 12 volts from the fog light terminal on the headl...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2001 Audi TT Quattro 1.8L Oil Pressure VIN: TRUWT28NX1 Thank you so much for all the responses. The dash was broken giving an error message, repaired by BBA, ok now. All psi readings were done with a mechanical oil pressure guage. The fix was to replace the oil filter housing which contains another oil pressure re...	26
	2002 Buick Rendezvous CX 3.4L trans fail safe VIN: 3G5DB03E72 Ok, there have been several good replies on this, most pointed at the alternator. There is a lot of confusion on the operation of this charging system. This car does have ecm control of the field circuit. The L terminal receives a 5 volt signal from the ecm... Trouble codes: P0620, P0560.	15
	1996 Chevrolet S10 LS 2.2L Misfire VIN: 1GCCS1940T We had misfire and intake popping. Intermittent, 8 calls to Identifix, they recommended 02 sensor, then another, then 02 harness wire, then more, more, more, 10 hours of time, on my own Thanks for your help and sorry for the poor posting, I thought I could up...	11
	1999 Chevrolet Silverado 1500 5.3L Unknown VIN: 1GCEK19T0X Most said that green is for holding purposes. Insert pump onto drum and air check this way. Use tranny fluid or stp mixed with red lube to thin down. There is never a 100% guarantee . Air check with shaft up. thanks everyone	10
	2011 Chevrolet Silverado 2500 HD LTZ 6.6L MIL Lamp on VIN: 1GC1CYC80B thanks to those who took time to help. because of time the owner decided to go to dealer. thanks matthew [...] found tsb and sent it with him to dealer. what I was told they had the truck for a week and in the end said they "manually" forced a regen on filter , th... Trouble codes: P2463 (DPF regeneration).	4
	2001 Chrysler Sebring LXi 3.0L unknown VIN: 4C3AG52H01 Thanks everybody. We began by flushing out the system so we knew how much oil we had in it. Recharged it and it seems to work much better now. Will always use factory parts for jobs like this from now on.	22
	2006 Chrysler Sebring 2.4L cooling fans The problem ended up being high resistance in the connector for the coolant sensor. Repaired the connector and installed a new sensor. Thanks to all for your input.	10
	1994 Ford Ranger STX 4.0L Hesitation VIN: 1FTCR14X8R well this truck is fixed. Thank you everyone who replied. Timothy from Wisconsin,Clifford from Texas and Patrick from Iowa all suggested the voltage was not real. I re scope checked the O2's and TPS never saw a glitch. scoped the crank sensor and found when ho...	7
	2002 Ford Taurus LX 3.0L Surge VIN: 1FAFP55U62 SORRY GUYS CUSTOMER PICKED UP VEHICLE ENDED UP SMOKING IT FOUND A SMALL LEAK AT THE EGR FIX GASKET SURGE GONE AS FOR FUEL PUMP NO FIX CAR RUNS FINE THANKS FOR ALL THE REPLIES	9
	2006 Ford F-250 Super Duty XLT 5.4L Mechanical VIN: 1FTNX20576 customer can not come up with records of oil changes for jasper. all replies were big help truck needs engine thanks.	18
	2003 Honda Pilot EX 3.5L Suspension VIN: 2HKYF18513 Thanks for all the replies, the inner sway bar bushings took care of the noise. The bushings looked good never would have thought to replace them. Thanks again for all the help.	18
	2001 Jeep Grand Cherokee Limited 4.7L No Start VIN: 1J4GW58N11 Thanks for all the replies. Disconnected the harness with the 5v reference from PCM.. Was able to communicate with the computer and pulled up a problem with the oil pressure sensor circuit.. Harness had wires showing. Repaired wiring harness and all is good....	12
	2007 Jeep Wrangler X 3.8L steering linkage VIN: 1J4FA24107 most replies I received concerned disconnecting outer tie rods and turning wheels to see if one or more ball joints or tie rod ends were binding, one mentioned a control arm on rear axle which if bushings were worn might cause the memory steer problem. Custome...	14
	2007 Mercedes-Benz ML320 CDI 3.0L lacks power VIN: 4JGBB22E57 This one is fixed! There's a problem in our industry when the OEM will only sell a turbo actuator with a complete turbo attached! I removed the actuator from the turbo and cracked it open. one side contains the motor and tested ok in both directions with a qu...	8
	2007 Mercedes-Benz R320 CDI 3.0L Weep hole VIN: 4JGCB22E27 I suppose I can call this a fix since what I was looking for was insight as to what could be coming from this weep hole, and I got my answer. Although the exact component leaking has yet to be identified, as you all were kind enough to share, I now know how mu...	7
	2007 Subaru Outback 2.5i Basic 2.5L data comunication VIN: 4S4BP61C67 the can resistors are in the abs module and the ecm, the abs module had a bad can resistor and that was the fix, we replaced the unit and no more issues, thanks again	9
	2004 Volkswagen Jetta TDI 1.9L goofy pressures VIN: 3VWSR29M14 Thank you for the suggestions. We Replaced the compressor and drier and performed another full flush, we found that there was still some debris in there. Replacing the compressor alone didn't fix it, after charging it and running it still did it. In the end w...	10

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