Automotive Technicians Technical Discussion and Fixes for Aug 25, 2014

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Open Help Requests for All Makes and Models

	Help Request	Answers
	2008 Audi A4 Quattro 2.0L Intake Valve VIN: WAUDF78E68 Hello everyone! 2008 A4 Quattro with a 2.0 BWT was towed in from the dealer. Customer states the car just stalled out of nowhere. Was running fine, then quit. It would not restart. She took it to a dealership, and they performed a compression test. They wished...	View
	2008 BMW 328xi 3.0L Poor Idle Quality VIN: WBAVT73568 I had this BMW in at the end of last week. The customer added on a drivability issue "while it's there". The car runs poorly at idle. There are three codes in the system. 2D06 - Air mass system, 29E0 - Mixture control, P00BC - Mass air flow circuit A too low. ... Trouble codes: 2D06, 29E0, P00BC	View
	1997 Chevrolet S10 LS 4.3L Blower Motor/ABS VIN: 1GCCS19X7V Have this truck in, the blower is inop but when you try to turn it on any speed the ABS light comes on, turn off and the abs light goes off, I replaced the resistor with no luck. With the resistor and abs unit unpluged I can get high speed to work plugging the...	View
	2005 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC52F75 this cavalier has a reoccureing evap code for large leak, simple right?, hooked up my smoke machine, found nothing, can cycle both the vent and purge valves with scanner to produce leaks then close them to shut the system tight, fuel tank pressure is reading g...	View
	2006 Chevrolet Corvette 6.0L Battery VIN: 1G1YY36U96 battery goes dead after a week. when i pull BATT 5 fuse number 7, 30amp in under hood fuse box the draw goes down to 15 milliamps. that fuse powers up a bank of fuses in the BCM. Those fuses are tele sw/mem seat mod 10amp, driv dr sw fuse 10amp, ignition sw/in...	View
	2008 Chevrolet Silverado 3500 HD LTZ 6.6L no fuel VIN: 1GCJC33678 this truck died while driving around back of the shop found 3 codes in it p0101 mass air out of range / p0381 glow plug heater circuit / p0087 low fuel rail pressure found data pids for mass air all readings ok at this time and no faults found with glow plugs.... Trouble codes: P0087, P0381, P0101	View
	2010 Chevrolet Silverado 1500 LT 5.3L pedal VIN: 1GCSKSE3XA Vehicle came in for grinding in front, tire noise, clunk when braking. We did not hear clunk. Replace front pads and rotors. We also replaced all 4 tires. on test drive we got clunk. On braking, around 40 MPH we are getting a slam, slip, bang. it happens somet...	View
	2001 Chrysler PT Cruiser 2.4L Head gasket? VIN: 3C8FY4BB11 Customer stated vehicle overheated twice in two days at freeway speeds. Checked fan operation, fan turns on at proper temperature both high and low speeds. Replaced thermostat, no change. Passed block test. Thirty degree temperature drop from top of radiator t...	View
	2007 Dodge Ram 1500 TRX4 5.7L Evap VIN: 1D7HU18277 P0457 again, can not identify cause	View
	1993 Ford F-150 XL 5.0L Cuts out, Misfire VIN: 1FTDF15N5P This is a really clean mint condition truck. Another shop had it for two weeks and said they couldn't fix it. I've had it longer than that( waited a week for a PCM) and still haven't fixed it. The symptoms mimic those described in the tsb for the spark plug wi...	View
	2004 Ford Expedition XLT 4.6L Speedometer VIN: 1FMRU15W24 Friends I've run aground on this one. A shop called me in to diagnose a trans not shifting and speedo in-opp after installing a transmission and a IC (both problems where there before the change). I programmed the IC using as built data, but still no speedo. T...	View
	2005 Ford F-250 Super Duty Lariat 5.4L Misfire VIN: 1FTSX21575 This truck was badly abused by its first two owners, including being stolen from second owner. Now its on its third owner, who babies it. Unable to find a compression or leakdown tester that will thread into these 14mm plug threads, to check valve leakage. Any...	View
	2007 Ford F-150 XLT 5.4L engine oil presure VIN: 1FTPX14V97 The vehicle came in for an engine noise, The timing chains sound like they going to come apart. To duplicate this condition, warm up engine, lightly power brake in reverse & let idle. As the engine slow down the rattle would increase & sometimes stall. Monitor...	View
	2005 GMC Envoy Denali 5.3L transfer case VIN: 1GKET63M75 This suv came in stuck in 4wd regardless of 4wd control switch position. Have found posts on this sight regarding this condition. The posts I found were similar, but not the same. Checked tire size, all were the same & brand new. Found the following codes for ...	View
	2003 Honda Civic EX 1.7L Mechanical VIN: 1HGEM21933 after engine was started and ran i could here engine noise,i thought valves were loose,let owner drive for about 100 miles and then brought it back.came back with mil on and code for vvt not operating.first thing i changed oil and filter,used 0w20 per honda,no...	View
	2003 Honda Civic LX 1.7L Hesitation, Cuts out, Stall VIN: 1HGES16573 I have this honda that runs fine,but intermittently cuts out when this happens the light on the cluster that tells you what gear your in goes out.the check engine light comes on but no codes.and the pcm relays 1 and 2 click.this usually happens only for a coup... Trouble codes: 0002	View
	2005 Honda Civic Si 2.0L Air Conditioner VIN: SHHEP33585 Hi, everyone. I have this honda with a/c problem. Customer complain about a/c quit blowing cold , after driving a while, as far as i know honda have problem with clutch relay . So we changed the relay , did not make any different.we could not dublicate the pr...	View
	2006 Honda Odyssey EX 3.5L left front speed sensor VIN: 5FNRL38626 Hi all.This vehicle was brought in with bearing noise in front end.Disabled VDG and ran on lift and determined l.f. brg. noisy.Replaced bearing asm. and now have abs light and lf. sensor code.Scanner in data mode and sensor speed is 0.Dissasembled hub asm agai...	View
	1989 Jaguar Vanden Plas 3.6L VCM Warning VIN: SAJKY1548K As best as I can tell, the ABS is working perfectly and normally. The only problem is the VCM (Vehicle Condition Monitor - the dash fault indicator system) displays a warning message "Anti-Lock Failure" I only get this warning when I start the car and drive it...	View
	1997 Jaguar Vanden Plas 4.0L Cuts out, Stall, Misfire, MIL Lamp on VIN: SAJKX6243V Hi all in IATN land. Thank you for reading my post. According to the customer, the car would stall and would not restart for 30 min. I could not duplicate the symptom in the shop. I lab scoped the crank sensor an it would nor make 1 volt and the pattern was di... Trouble codes: P1777 (p1775-), P1775	View
	1987 Jeep Comanche Pioneer 4.0L Cuts out, Misfire VIN: 1JTML63P8H Hi group. The customer bought this jeep this summer with a rebuilt engine and transmission. It idles fine, but off idle it starts to miss and backifire. When I got it the motor mounts bolts had broken on the left side and let the exhaust/intake manifold sit on...	View
	2000 Lexus RX300 3.0L oil consuption VIN: JT6HF10UXY Hello all! This request is a bit different. I have a 2000 Lexus rx 300 that was towed in here November or December of 2012! on 8-17-2012 we did brakes and an oil change. 2608 miles later, towed in with engine knocking. No oil on dipstick. Told customer needed...	View
	2002 Mercedes-Benz E320 3.2L 2-1 shift down VIN: WDBJF65J32 Customer came in with driveablity complaint. Test drove and noticed not down shifting into 1st gear. It will shift manually and drive fine shifting up but you must manually shift to 1st when at a stop. Has codes P2069, p2066, p2001, p2502, p2500, p220a, p200b....	View
	2004 Mercedes-Benz C240 2.6L limp home mode VIN: WDBRF81J24 this car will sporadically go into limp home mode. check engine light on. at times the fault (p2602) wont clear. other faults will clear. other times a simple cycle of the key brings it out of limp mode and it will shift. and other times all it will do is rev....	View
	2002 Mercury Grand Marquis LS 4.6L Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 2MEFM75W02 The customers concern is that once in a while the car will shut off as he is cruising down the road. This is as if he were to shut the key off. Then he will have to let the car sit for a few minutes before the engine will start again. Then the engine may run p... Trouble codes: U1262 (Bus Communication fault)	View
	1987 Oldsmobile Cutlass Ciera S 2.8L Stall VIN: 1G3AJ81W2H we have a 1987 olds 2.8L starts and idles fine but it stalls at tip in EVERY time. fuel psi 41 koeo 34 idle goes up to 45 at tip in, has new MAF sensor, TPS, MAP sensor, and fuel pump. and yes all sensors are giving voltage and good readings. thanks for any an...	View
	2004 Saab 9-5 Aero 2.3L ABS module VIN: YS3EH45G94 I have bought a module from Goldwing Saab Used Parts when I plug it in and try and code with the TECH 2 it will not allow me to configure it to a 4 cyl std shift I received a second one which they assured me it was from a 4 cyl std trany and would work plug in...	View
	2003 Toyota Tundra 3.4L Steering VIN: 5TBJN32113 The customer has been trying to resolve this wheel vibration by installing new rims and tires, alignment, and leaf spring supports to raise the rear. I removed the rear lift spring and put it back to stock, rebalanced wheels and the steering wheel still shakes...	View
	2006 Toyota RAV4 Limited 3.5L Engine noise VIN: JTMBK31V46 Thanks for the help on this one. OK so customer had some warranty work done and Toyota informed him he had an engine noise which he did not know or hear until he was told. So it has an upper valve train noise.IT sounds like the oil control solenoids are not wo...	View
	2001 Volvo V70 X/C 2.4L communications VIN: YV1SZ58D51 This vehicle ran fine but sat for a couple of weeks. It drove fine to the gas station. After getting gas it throws a p1631/ ecm-530b communication code. Every time you restart it the light comes back on. I have intermittent communication with different modules...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2006 Buick Allure CX 3.8L Stall VIN: 2G4WJ58296 After more testing it was determined that the PCM was turning the coil off for an unknown reason. All the data looked good when this was happening including fuel trim. It was just quitting like someone hit the key. Here is the strange part. We bought a used...	7
	2004 Cadillac DeVille DTS 4.6L Front Struts VIN: 1G6KF57944 Thank you all for your assistance. We ended up purchasing struts from Arnott with the actuators in the struts. The price was equal to the cost of passive struts. I would recommend to anyone wanting to install passive struts on a 4.6L Cadillac to not purchase t...	7
	1971 Chevrolet K30 Pickup 6.6L compressor VIN: KE241S6606 Thank you all for the replies. Chris from CA is the winner, he faxed me a diagram. The 3 wire compressor relay is actually a anti-dieseling relay. Something is not right with it. The truck is far from OE, with a 454 and R-4 compressor, so I unplugged the relay...	11
	2005 Chevrolet Trailblazer LS 4.2L No Start, start & dies @ times VIN: 1GNES16S85 We replaced the motor as many of you suggested and it to care of all the problems. My biggest fear was that after replacing the motor the vehicle would still not start. With one dead cylinder most vehicles will still run, go figure, there is a first time for ...	22
	2009 Chevrolet Silverado 2500 HD WT 6.6L Eng oil VIN: 1GCHK49659 This issue is not fixed due to the customer not wanting us to pursue the problem. To satisfy anyone's curiosity, this truck vehicle has barely any idle time, it's always on the highway, and we've already flashed the pcm with the latest software as you can see ...	9
	2005 Chrysler PT Cruiser Touring 2.4L unknown VIN: 3C3EY55E45 First thanks to all who took time to help me. most of the replys I got said same items ie control arm bushngs engine and frame mounts maybe loose rack mounts , I did not get back to car till Wednesday checked entire ft end could not find anything causing probl...	14
	1997 Dodge Ram 2500 5.9L Cuts out, Stall Thank you for all the replies and info offered. I contacted the owner and he hasn't had any issues since I replaced the injection pump. At this point I'll have to consider it fixed. Still a bit anxious but It looks good. Wish I had info from the reman comp...	5
	2003 Dodge Durango Sport 4.7L 4 wheel drive VIN: 1D4HS38N73 I replaced the transfer case shift motor, and it is fixed now.	4
	1984 Ford F-150 XL 5.8L Hesitation, Cuts out, Stall VIN: 1FTEF14H2E Thank you guys for taking the time to replay with you tips they all were helpful, The owner decided to take it back to where the carb was rebuilt, that was last week, so we haven't hear from him yet, I check the timing like some suggested, it was fine but, I t...	20
	2003 Ford Excursion Eddie Bauer 6.0L No Start Thanks to every one for your input. I pulled the left valve cover off and also pulled back the right valve cover as much as I could with out removing the heater box. Once I had the oil rails exposed I applied shop air to the left rail through the plug on top... Trouble codes: P132B.	11
	2005 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53235 The vehicle is currently still having the same issue as before. The Fuel Pump Control Module was tested and confirmed "Good" along with the Fuel Pump itself. The vehicle was suffering from a Rich Condition so checking for Vacuum Leaks proved un-useful. Reprogr... Trouble codes: P0174 (System Rich).	8
	2008 GMC Acadia SLE 3.6L Poor Idle Quality, Misfire VIN: 1GKEV13718 Thanks for all the replies I ended up keeping it simple and if needed going from there. Did a tune up (spark plugs) and fuel injection service. Customer hasn't had cold start issue since.	9
	2003 Jeep Liberty Limited 3.7L Misfire, MIL Lamp on VIN: 1J4GL58K33 Thanks for all the great responses, I found out that this vehicle was in the body shop prior to us getting it, It seems as though the body shop did some "Welding" repair to the radiator support and I assume did NOT disconnect the battery. Installed a new ECU, ... Trouble codes: P0300.	9
	2004 Kia Spectra EX 2.0L MIL Lamp on VIN: KNAFE12154 Well I am sorry to report that I did NOT repair this little monster. I referred him to take the vehicle to the dealer. A dealer the car had not been to yet. I decided to head out to my local pull it yourself and save type wrecking yard and take one apart to ch... Trouble codes: P0340 (Cam position sensor), P0563 (system volts high).	10
	2006 Nissan Murano SL 3.5L Blower VIN: JN8AZ08W86 Thanks for all the responses but the customer never showed back up to continue the diagnostics. Sorry for the false alarm. Thanks again	2
	2007 Subaru Outback 2.5i Basic 2.5L Misfire VIN: 4S4BP61CX7 First thanks to all you guys for trying to help me fix this problem child.As of now this thing still isn't running right.After checking everything I could think of and all the suggestions you guys made I ended up ripping of the right head that was all ready do... Trouble codes: P0301, P0303, P0304.	29
	1991 Toyota Pickup SR5 3.0L timing VIN: JT4VN93G1M Well, I received several replies informing me that in addition to shorting the E1&T1 together the TPS needs to show that the throttle is closed. That was the missing piece of the puzzle for me. Now this new information leads me down another path that the owner...	13
	2006 Toyota Highlander Hybrid Limited 3.3L MIL Lamp on VIN: JTEDW21A76 Thank You to everyone that replied. The vehicle did not come back with a misfire code however we found that the inverter was failing. Sent customer back to dealer for recall on inverter module/computer recall. Later found out that inverter needed to be replace... Trouble codes: P0300 (Multiple misfire).	4
	2006 Volkswagen Jetta GLI 2.0L Hesitation, Cuts out, MIL Lamp on VIN: 3VWWJ71K76 Thanks for the replies, a common reply was to check for debris in system, so I cut open the fuel filter, and looked in the tank again, but both looked OK. The other reply's had to do with low pressure fuel pump control unit located under rear seat above the p... Trouble codes: P2293 (Fuel Pressure Regulator Valve N276), P310B, P0089 (Valve For Metering N290 Implausible Signal).	4
	2004 Volvo XC70 2.5L Poor Idle Quality, Stall VIN: YV1SZ59H64 I just spoke to the customer and the car has not died again. As it turns out he has been going to the dealer for the same problem (wished he would have shared this) The dealer has already replaced the Leak Diagnostic Unit and other work so I respectfully refer... Trouble codes: ECM40.	7

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