Automotive Technicians Technical Discussion and Fixes for May 31, 2018

Join Now

Prev	Professional Automotive Repair Technical Discussions for May 31, 2018 International Automotive Technicians' Network (iATN) - Members Only	Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models

	Help Request	Answers
	2009 Audi Q7 3.6L Radio, Display VIN: WA1AY74L39 Hello Audi Tech’s, this Q7 will loose the display, radio Inop at times, the code we have is 16347 Control module EEPROM malfunction, Diagnostic data interface-gateway. We have the tool to isolate each module, we did the telephone module so far and no chang...	View
	2011 Audi S4 3.0L Starter inhibitor VIN: WAUDGAFL8B Car came in requires to press the clutch pedal VERY hard for the starter to work, if normal pressure applied to the pedal a message in the instrument cluster comes up "Press clutch pedal". The customer said this issue progressed slowly and, it is the 2nd t...	View
	1995 BMW 318i 1.8L Noise VIN: WBABK532XS The engine has a noise that sounds like lifters. They were replaced last year which did not reduce the noise. In listening with a stethoscope, it seems the noise is more pronounced at the front of the engine, so I suspect it's timing chain related. In t...	View
	1995 BMW 318i 1.8L Oil pressure VIN: WBABK532XS The concern is the oil pressure at cold start-up. For a good 5 seconds it stays at 6 psi, and the light stays on, when starting a cold engine. Over the next 5-10 seconds it rises to 18 psi. Even when starting a warm engine it takes close to 5 seconds for t...	View
	1993 Chevrolet C1500 Cheyenne 4.3L No Start, Poor Idle Quality, Surge, Stall VIN: 1GCEC14Z0P Hello It’s been A while since I am pretty much retired now but an old customer had his pick up die here and asked me to look at it. I was sure it would be a bad pick up coil causing no spark so I used my test distributor and it would start but slobber and ... Trouble codes: 32 (Map sensor)	View
	1997 Chevrolet Blazer 4.3L Stall VIN: 1GNDT13W8V Hello and thanks to anybody who can help i have this 1996 Blazer that developed a stalling issue anytime the transmission is removed from park. it is NOT a TCC issue the part i am struggling the most with is that once the transmission is shifted from park ...	View
	2012 Chevrolet Silverado 2500 HD LTZ 6.6L poor def.quality VIN: 1GC2KYE87C will not let me reset def. quality because #4 egt is at 1832 telling me that the reductant inhibit reason is the nox cat. temp.Swapped egt #3 with #4 egt read ambient air temp.Ohmed wiring back to ecm no problem.ecm seems to be bad, am I missing something?	View
	2013 Chevrolet Silverado 2500 HD LTZ 6.0L Compressor Clutch VIN: 1GC1KYEGXD Truck came in for insufficient cooling. Found leak at High side port on liquid line. Replaced line with OEM part, evac and recharged. System cooling great for about 20 minutes with pressures around 35 low and 225 high sides. Then the compressor started cyc...	View
	2015 Chevrolet Equinox L 2.4L MIL Lamp on Please help. have changed timing chain and tensioners, rechecked and timed right, replaced actuators , and cam phasers, replaced computer, ran new wires computer to actuator bypassing loom, switched wires so that the computer intake is looking at the exhau... Trouble codes: P0017	View
	2000 Ford F-550 Super Duty Lariat 7.3L Misfire VIN: 1FDAF56F5Y Truck came in with a misfire on cylinder 8. Diagnosed as bad injector (all 8 injectors were replace at another facility 2 years ago). Replaced injector and started to check repair. It now is only running on the right bank, so I ran a buzz test, failed all ...	View
	2005 Ford F-150 FX4 5.4L Bsm VIN: 1FTPW14595 One of our techs is having trouble reprograming the body security module or vsm. When going through the procedure it kicks us a message that we need to put in the as built data code to program the bsm. And to it tells us to go to pts web site.	View
	2008 Ford Escape Hybrid 2.3L Low brake pedal VIN: 1FMCU49H38 Hello, this Escape is a Hybrid, and it came in with a low brake pedal and it had these 2 codes: C1480 RF brake pressure, and C1478 LF brake pressure. We bleed the system with the scanner per Ford's procedure and the pedal came back and the codes reset them...	View
	2013 Ford F-550 Super Duty XL 6.7L AC system VIN: 1FDUF5HT8D Hello I have replace the AC compressor because of it failing, I replaced Drier bag , expansion valve , and recharged. In the beginning the Pressure stays low on hi and low side as the engine warms up The high side gets above 350 psi. I did blow out the con...	View
	2015 Ford Transit-250 3.2L MIL Lamp on VIN: 1FTNR2CV0F Hi guys need help. Vehicle towed in for coolant leak, mil on and no power. Codes in ecm when came in p1102 maf sensor in range but lower than expected p02ed diesel intake air flow controlsystem- low air flow detected p040d egr temp sensor a ckt high p054e ... Trouble codes: P1102 (Maf sensor in range but lower than expected), P1102 (Maf sensor in range but lower than expected)	View
	2006 GMC Canyon SLE 2.8L MIL Lamp on, VIN: 1GTCS148X6 Vehicle came in with code p0017. also had a bad rattle for about 30 sec on startup. figured timing tensioner was out. tore down. found extremely worn timing components and tensioner with very little tension. replaced chain. using special tools and all timi... Trouble codes: P0017	View
	2006 Jaguar X-Type Sport 3.0L Alternator VIN: SAJWA51A06 Battery light on dash will come on when A/C Cycles on. We have replaced the alternator twice along with the battery cables. Any help on this matter would be greatly appreciated.	View
	2006 Jeep Commander Limited 5.7L wont crank VIN: 1J8HG58216 hey my friends I have this jeep that wont start sometimes, very intermittent and when it wont start it starts runs and dies and at the same time every thing on CAN BUS B is down. I think there is a module going bad but it never acts up long enough to start...	View
	2014 Mercedes-Benz GLK250 Bluetec 4Matic 2.1L limp mode? VIN: WDCGG0EB7E Customer complaint is that it is upshifting at 2500rpm even if you are wide open throttle. So it is lacking power. it also does not kick down on the highway, kickdown switch is activating on the scanner. cleared codes and mass air flow came back immediatel... Trouble codes: P0101	View
	2006 Mitsubishi Lancer Evolution MR 2.0L Poor Idle Quality, Stall VIN: JA3AH86CX6 The complaint with this Evo is stalling on deceleration with the clutch pedal applied. Sometimes it will stall with the clutch released & transmission in neutral, but only when coming to a stop. It will not shut off when already at an idle. When sitting at...	View
	2009 Nissan 370Z Touring 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: JN1AZ44E49 Car came in to us on recommendation from dealer for misfire. Had a broken in two aftermarket exhaust. Replaced entire cat back exhaust. Bank 1 Cylinders 1,3,5 show misfire. Bank 1 LTFT at 85% when misfiring. Does not misfire until hot. Does not misfire above 1... Trouble codes: P0300	View
	2012 Volkswagen Passat SEL 2.5L High Pressure Sensor VIN: 1VWCP7A32C We have tried to duplicate the problem, but it takes the owner 1-2 days to get the fuse to blow. The VW dealer stated that the compressor was pulling too many amps but we never saw over .5-.7 AMP draw. This fuse also powers the garage door opener, washer n...	View
	2010 Volvo XC90 3.2 3.2L compressor VIN: YV4982CY1A car was brought in with the A/C system not cooling. Hooked up A/C machine ands pressures were equal on high side was 95psi and low side was 85psi. Compressor clutch is operating. The Freon charge was correct. I knew this is a variable displacement compressor a...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2000 Buick LeSabre Limited 3.8L Starting VIN: 1G4HR54K7Y found a power wire going to pcm under the fuse block chewed thru by a mouse. didn't make sense but just starting checking power and grounds while waiting for responses. and found that there was ignition feed to pcm that was not powering up traced back and fou...	15
	1988 Chevrolet Corvette 35th Anniversary Edition 5.7L MIL Lamp on VIN: 1G1YY318XJ Closing this becuase i beleive i have exhuasted every option i beleive it to be a prom or pcm problem.I cant find a new prom chip and every crappy reman pcm i put in sets more codes.How ever some of them will not have the burn off code hence my conclusion its ... Trouble codes: 36 (Mass air flow burn off).	9
	2004 Chrysler PT Cruiser GT 2.4L monitors won't run VIN: 3C8FY78G54 Thanks to everybody who replied. I called Identifix and Alldata, nether helped me fix it. Rick Escalambre has a drive cycle that works go to his website and print it. 13 minutes after a cold soak start ALL monitors had run no codes, no pending. FREE resources ...	10
	2001 Dodge Ram 2500 Van 5.2L p1757 VIN: 2B7JB21Y71 Thanks for all of the help guys. Found connector filled with trans fluid, cleaned out as suggested. Cleared code, shortly after code became active again. Truck continued to drive fine and code went inactive again. Has been days and no more code: will update if...	7
	2003 Ford Explorer Sport Trac XLS 4.0L Oil Pressure VIN: 1FMZU77E43 Couldn?t get a good feeling on this one so we decided on a new used engine rather than spend more time trying to fix this one just to find out its probably junk Thanks for the reply?s	14
	2006 Ford F-350 Super Duty XLT 6.0L Fuel gauge VIN: 1FTWW31P86 I owe a debt of gratitude to IATN, and all of the Techs that responded. Lesson learned about by-pass testing on these clusters! I purchased a decade box (resistor box) and installed in in series to the circuit. After setting the box to 75 ohm's and dis-connect...	6
	2004 Honda Pilot EX 3.5L Abs Looked closely at all the sensors and found a rear one was loose in the mounting hole. Probably an oversight from recent rear coil spring replacement. Vehicle is now fixed.	12
	2007 Hyundai Tiburon SE 2.7L Temp VIN: KMHHN66F67 customer picked up the car after hours, and opted to bring it back before i could do any further testing. the pan was the same temp 110F. i didnt use a scope but definitely will(ironically im always pushing for scope usage) if client does in fact bring it back...	7
	2010 Mercedes-Benz GL350 Bluetec 4Matic 3.0L Speed sensors VIN: 4JGBF2FE8A Hello and thanks, it turned out that we had to replace the left side sensor also and has been good for a week so far. Never made it more than a day before. Thanks again	7
	2006 Saturn Vue 3.5L Engine VIN: 5GZCZ53496 Removed the Axle and the bolt, found the sealer never cured and was still a liquid. Unsure of whether sealant was old or not very good for this situation. I ended up finding a oil drain plug o-ring that fit (metal with rubber inlaid in it) and used that and to...	7

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