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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 30, 2013
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Open Help Requests for All Makes and Models
Help Request Answers
2002 Audi A4 Quattro 3.0L cam gear bolt VIN: WAULT68E02
i cannot find what i believe to be the correct torque spec for cam gear bolts on this 3.0 audi with twin dual overhead cams. alldata, and everywhere else on the internet i've searched says 100 Nm and that's it. there are no keyways in these gears to the shafts...
2006 BMW 530xi 3.0L Engine VIN: WBANN73586
This car belongs to a very good customer. He is using 1 quart of oil per 1,000 miles. We have only been using BG full synthetic 5w-30 oil. This car has no dipstick, just a sensor in the oil pan. We have tested the crankcase vacuum and it is within spec of TS...
2005 Buick LaCrosse CX 3.8L line pressure VIN: 2G4WC53285
this is for my trans rebuilder. this car came in originally for slipping/bad trans. Rebuilt trans sent on way all seemed good. customer took a long road trip came back harsh shift complaint. examination shows trans bad inside rebuilt again. now exstended and h...
1997 Cadillac DeVille 4.6L Body Control Module VIN: 1G6KD52Y7V
Thanks in advance for any help on this one. Vehicle came in with a 1.6 amp draw. After isolating it to the BCM, we ordered one from GM and installed. Did not change the battery draw. In running thru tests, I noticed my BCM data on my Snap On scanner was showin...
1994 Chevrolet Camaro Z28 5.7L Lack of Power VIN: 2G1FP22P6R
Car arrived 6 months ago. Customer had just purchased private party and was told engine was fairly new. He was experiencing intermittent stalling while driving. We pulled car in and noticed engine seemed very hot and found low on antifreeze, gauge did not read...
1995 Chevrolet Astro CL 4.3L No Start VIN: 1GNDM19W4S
Hi, this van is not starting after repairs. It ran when the van came in. It originally came in for a charging problem and at that time it showed extended cranking problems. i made the comment it may have a fuel pressure regulato problem. It came back to have t...
2003 Chevrolet C6500 Kodiak C6C042 7.2L Lighting VIN: 1GBJ6E1CX3
This the other shops tow truck. They are asking that we now diagnose why no blinkers and hazards when vehicle running. After alot of checking, we found voltage on the ground wire for front head lights. This is creating a back feed of voltage into cluster and o...
2006 Chevrolet Aveo LS 1.6L Hesitation, Cuts out, MIL Lamp on, MIL flashing VIN: KL1TD66626
Vehicle came in with mil flashing, customer said ran ok, felt like misfire. Requested tuneup. Pulled ignition wires found spark plug tubes half full of oil. Code P2680-could not find a description on scan tool, IATN, AllDATA, or Google. Replaced plugs, wires, ... Trouble codes: P2680 (description unavailable), P0300, P0301, P0304
2007 Chevrolet Silverado 3500 Classic LT 6.6L p/s windows,d/s seat VIN: 1GCJC33D57
Ok guys i got a good one here,the SEO ACCY fuse blows and the R/frt and R/rear windows and the drivers seat quit working,did an amp draw it was ok,checked wiring diagram,this is where it got strange,the SEO ACCY fuse shows to only go to a mobile radio relay se...
2007 Chevrolet Trailblazer LT 4.2L temp. control VIN: 1GNDT13S07
During warm-up after t/stat r&r I found no heat from right side defrost vents. I shut the vehicle down for lunch, restarted it after lunch and found heat present at r.s. defrost outlets, hmm. Disclosed found issue to customer, he drove away only to return late...
2008 Chevrolet Impala LS 3.5L Misfire, Poor Fuel Economy VIN: 2G1WB58K08
this vehicle came in with no check engine light just a surge at idle. I checked codes and found a stored p0300. I checked the scan tool data and found a cylinder 4 misfire on a graph. Spark plugs had a large gap and burned up. I checked the spark and cylinder ... Trouble codes: P0300, P0304
2001 Dodge Ram 1500 Van 5.2L No Start VIN: 1B7HC16Y61
As stated, I received this truck as a no start with a lot of parts already installed. I found that the ASD relay was not getting grounded by the ECU to send power to the injectors, coil, etc. Jumping the ASD relay does send power to all sources including power...
2001 Dodge Durango 4.7L cylinder head VIN: 1B4HR28N61
I know this is a simple question for domestic techs.I am trying to get my sons vehicle back on the road as cheaply as possible for a few more miles.The intake valve seat on the rearmost cylinder on right side is dropped,hanging valve open.Cam timing is spot on...
2007 Dodge Sprinter 3500 3.0L MIL Lamp on VIN: WDXPF44567
Unit came in for Low Power, Scanned for Codes P3137,P3154,P2249,P2822,P2248,P2953,P2359,P2355 were in memory, Cleared Codes only P2359 'Charge Pressure Control Boost Pressure Low' came back. Found blown Turbo seal, Changed seal, Test drove checked for codes ra... Trouble codes: P2953 (Intake Port Swirl Actuator Open/sensor Value too low)
2011 Dodge Grand Caravan Mainstreet 3.6L No fuel pressure VIN: 2D4RN3DG4B
In advance Thank you guys help for all your help *** customer took vehicle to sears for weak start, sears replace battery. after a day customer the same problem went back to sears. sears told him to replace alternator. unable to find alternator in the hawaiia...
2004 Ford F-150 FX4 5.4L Hesitation, Stall VIN: 1FTPW14594
Fellow Techs, I have a 2004 5.4 3V F-150 that has a low idle 400-500 rpm, frequently stalls when placed in drive or reverse, and hesitates when throttle is applied from idle. The MIL is not on. It is my personal vehicle since new and never had an issue of any...
2007 Ford F-250 Super Duty XLT 6.0L calipers VIN: 1FTSW21P57
These items are new calipers, hoses,rotors and pads. no ABS codes front end tight. When applying brakes truck pulls to the left.
2009 Ford Focus SE 2.0L Unknown VIN: 1FAHP32N59
Customer complained of sputtering and no acceleration when stepping on the gas pedal. Scanned for codes and pulled p0755 solenoid b circuit failure. Followed diagnostic procedure with no faults found in the harness or solenoids. Can clutch material block the s...
2001 GMC Savana 2500 5.0L Hesitation, Misfire, MIL Lamp on VIN: 1GTFG25M71
engine new plugs coil ing module wires and fuel injection unit was towed in no start replace fi unit now running with po300 misfire we think its fuel pump not with in spec not sure.
2003 Honda Element EX 2.4L Misfire VIN: 5J6YH27543
All Repairs made no change. Next step is to check Exhaust Valve Clearance. But wanted to put on here and get some feedback before went any futher. Thanks Trouble codes: P0300, P0301, P0303, P0141
2012 Honda Fit Sport 1.5L Unknown VIN: JHMGE8H50C
Please read carefully, and Thank You for your help. This fit is from a fleet of 26 fits that we service. The vehicle is used to deliver home health products so it is driven constantly. It's a 2012 with 100k on the odometer already. The complaint is that the ai...
2002 Jaguar XJR 4.0L No Start, MIL Lamp on VIN: SAJDA15B02
hello xjr jag techs...jag came in on a hook ,blew oil cooler hose,spun rods so we replaced engine with 40k motor used original harness , turned key on for 2 mins,,then started it..fired right up...waited for cooling system to get air out...filled as alldata st... Trouble codes: P1646, P1647, P0740, P0753, P0758, P0763
2005 Land Rover LR3 SE 4.4L Ride Height Calibration VIN: SALAE25425
After suspension compressor and software update when trying to calibrate ride height, using Autel MaxiDas, will get message "height measurements outside required tolerance , must have height calibration error of 3mm or less. Scanner is showing LF -14, RF +19, ...
2003 Mazda 6 i 2.3L timing chain VIN: 1YVFP80C13
This car came in with a broken exhaust camshaft which had killed the head. Customer opted for a lower mileage used engine. We installed the replacement engine and it started normally and we let it idle until it got to operating temp. Then when we revved it, it...
2006 Mazda Tribute S 3.0L Excessive Emissions, Poor Idle Quality, Stall VIN: 4F2CZ04196
Client says engine start fine in the morning, start driving with out any problem, once arrive to an stop it stall (this symptom is intermittent) then after running the car for more than 20 minutes the stalling becomes more frequent(only at idle), if you try to... Trouble codes: P0172 (System too Rich B1), P0175 (System too Rich B2), P2196 (O2 Sensor signal stuck rich B1S1), P2198 (O2 Sensor Signal stuck rich B2S1), P0403 (EGR malfunction)
1994 Mercedes-Benz E320 3.2L Cam gear VIN: WDBEA32E5R
My shop replaced head gasket of this car. Car is good running car, gasket done for usual oil leak mo. My tech set up chain and ended up breaking the camshaft in 3 miles. Great! Destroyed head, broken timing cover. I found a few identical cases with the same pr...
2003 Mercedes-Benz C230 Kompressor 1.8L Misfire VIN: WDBRN40J33
Hello everyone- This Benz has a misfire/hiccup under light throttle during cruise conditions. Will not miss on full throttle acceleration or when powerbraking in shop. Will not give any misfire codes. I've checked compression and inspected the plugs/coils very... Trouble codes: P0128
2007 Mercedes-Benz S550 5.5L cooling system VIN: WDDNG86X27
car came customer stated that the cooling fan has a mind of its own. seems to come on when not needed. sometimes even with car off. no codes and temp seems normal. fan will run sometimes for short periods like 5 seconds to 15 seconds,. Any help appreciated.
2006 Mini Cooper S 1.6L Cooling System VIN: WMWRE33586
This Mini was brought in to check cooling system, car was overheating and losing coolant through the expansion tank cap, coolant hoses were replaced but engine was still overheating. Cooling system was pressure checked and no leaks found. Cooling fan was not w...
2004 Nissan Quest SL 3.5L timing chain VIN: 5N1BV28U14
After timing chain repair, engine misses, idles rough, sets P0300 for random miss. Runs smooth as glass above 2000, rpm. Will pop back through intake. Trying to find out if timing is off or variable solenoid or phaser is bad. Before pulling engine back out.
2005 Nissan Maxima SL 3.5L Starting VIN: 1N4BA41E45
Hello All! We have this maxima here that cranks but will not start. There is no spark and no injection pulse. There are several codes stored as well, they are P0462-fuel level sensor, P1212 TCS circuit, P1610-Lock Mode, P1612-NATS malfunction, U1000-CAN commun...
2009 Nissan 370Z Touring 3.7L cam timing VIN: JN1AZ44E39
vehicle towed in crank no start found code P0340 cam position snsr circ. customer said he was driving down the road vehicle back fired he accelerated shifted backfired again then shut off would crank but no start. found engine had less than half a quart of oil...
2006 Pontiac Grand Prix GT 3.8L Heat VIN: 2G2WR58486
Vehicle came in for car not blowing hot air. We replaced the heater core and the thermostat. Vehicle left the shop blowing 120* out of the vents. Customer called back this morning saying it is cold again. Blend door seems to be working just fine.
2006 Saab 9-3 Aero 2.8L Starting VIN: YS3FH71U16
-2006 Saab 9-3 Aero 2.8 turbo automatic transmission 46,000 miles Originally came in with an intermittent no start no crank problem. Problem is now constant! No crank problem. I started off tracing the no crank to no ground signal being received At the starte...
2001 Toyota Camry CE 2.2L Evap system VIN: 4T1BG22K71
This vehicle keeps coming back to me with codes p0441 and p0446. All the VSV solenoids are working correctly and are able to be controlled through the PCM. A smoke test was done. Everything is tight. I also, manually, performed a system leak test by grounding ...
2009 Toyota Tacoma 2.7L Transmission VIN: 5TEPX42N89
Customer states there is a noticable whine from the vehicle while driving. The whine is present is all gears but 4th. The whine can also be heard when stopped and clutch engaged, but goes away when the clutch is disengaged. I diagnosed a bad input or counters...
2010 Volkswagen Golf TDI 2.0L Mechanical VIN: WVWBM7AJ9A
This car was towed in, customer stated that the turbo was wineing it lost power and then quit running. It cranks but wont start. checked fuel and pressures with the help of identifix, all ok. There are no codes present. My tech disconnected one of the intercoo...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Buick Regal LS 3.8L No Start
The maf was the right call originally but while making the right call i made the wrong call as well. The new standard maf was what was making the car not start on a hot soak, i ended up getting a delco unit from the dealer, that was rebuilt...300 some odd $'s ... Trouble codes: P0440.
1998 Chevrolet C1500 Cheyenne 4.3L No Start, Cuts out, Stall VIN: 1GCEC14W3W
We have possibly fixed it. Sorry it took so long. WE had originally decided to change the pump, replaced with a Delphi unit, new filter and checked wiring. Truck started and ran, than stalled. Still had spark, good fuel pressure, but no start. Injector was f...
2000 Chrysler Voyager 3.3L high pressure relief valve
Sorry for the delay . actually though I had already closed this out. ended up being the dryer contaminateed , removed lines and blew out with air found gook in dryer . replaced dryer and recharged . system operating normally
2001 Chrysler Town & Country EX 3.8L no shift VIN: 2C8GP74L11
After checking power and grounds and splicing into ipm to provide better b+ but still no response, found a local computer rebuilder. He could not 'wake up' the tcm & got another. TCM woke up but still no communication with vehicle. FEM was bad and a used one ...
2004 Chrysler Pacifica 3.5L Blower VIN: 2C8GM68424
Thanks for the replies guys, sorry its been so long before closing, we wanted the customer drive it for awhile. Haven't heard back from them after leaving a message.We are calling this one fixed for now, we got a Mopar resistor from the dealer and installed. S...
2009 Dodge Ram 1500 Sport 5.7L Misfire VIN: 1D3HV18TX9
Removed the cylinder head and found the roller on cylinder 5 seized and camshaft damaged. Replaced camshaft and all the lifter. Road test and verified engine runs good without misfires. Thank you for all the replies! Trouble codes: P0305 (Cylinder 5 misfire detected).
1996 Ford Ranger Splash 3.0L Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: 1FTCR14U2T
GOOD MORNING I still haven't fixed this vehicle but its time for the post to be closed.I have checked all your suggestions checked fuel pressure 40 ilbs. check intake air boot,dropped exhaust,replaced maf sensor,replaced iac,I still believe what a few of you s... Trouble codes: 1101 (Mass air flow sensor).
1996 Ford Ranger Splash 3.0L Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: 1FTCR14U2T
good morning I still haven't fixed this vehicle,but I tried all your suggestions intake air boot,dropped exhaust checked firing order,some of you suggested jumped timing chain which I agree with but what I don't understand is why when you play with the throttl... Trouble codes: 1101 (Mass air flow sensor).
2004 Ford F-150 FX4 5.4L Mechanical VIN: 1FTPW14524
It appears the right timing chain or tensioner is the problem. The customer is waiting to save the money. It appears that from most of the responses that you do not need to use the special tools as long as you are on TDC on #1. Thanks to all who replied. I wil...
2003 Hyundai Tiburon GT 2.7L Heater core VIN: KMHHN65F03
I tested the voltage of the coolant with the vehicle running and it was .7 v. I also used a block tester to test for a head gasket leak and it indicated there was a leak. I believe a combination of electrolysis and excessive pressure caused the heater cores ...
2004 Lexus GX470 4.7L Dash Lights, Turn Signals VIN: JTJBT20XX4
Thanks for the 4 replies regarding this Lexus. They were general in nature but appreciated. Typical for coolant in the electrical connectors and bent pins in the connectors or pulling in the connectors wrong. First I was surprised that a Toyota tech did not ju...
2008 Mazda 6 i 2.3L No Start VIN: 1YVHP80C88
although I have received some useful tips my snap on verdict had a confirmed software issue that would not allow me access to the data at times. I was afraid to continue on this car with blinders. my customer came back to me with the feed back I requested she ...
1992 Mercedes-Benz 500SEL 5.0L Right Rear Door VIN: WDBGA51E7N
Hi folks! Well I was able to get the door open. With the back seat removed I was able to removed the door panel. Using compressed air and brake clean, I cleaned the latch and lubed. After about fifteen tries, I was able to get it to open. I removed the lat...
2004 Saab 9-5 Aero 2.3L Poor Idle Quality, MIL Lamp on, Abs, esp, brake VIN: YS3EH59G54
Thanks for the replies. We have been using BBA throttle bodies for a long time without this sort of issue, but after installing a new genuine unit, the problem has not returned. I replaced the ignition switch and ABS module again. Shortly after returning th... Trouble codes: P1531 (Pedal position 12 out of range), P1231 (Throttle position 12 out of range), C1387 (Right rear wheel speed sensor no signal), C1925 (No CAN communication with ECM/TCM).
2006 Subaru B9 Tribeca Limited 3.0L MIL Lamp on VIN: 4S4WX83C26
Many thanks to the (4) members who unanimously replied with recommending an engine oil flush (Bill, Calvin, Chris and Tom). After the flush and an OEM filter, a recheck of the camshaft position and sensors showed improved performance and no more MIL. Trouble codes: P0011 (Intake camshaft position timing - over-advanced on cylinder bank 1), P0021 (see P0011 according to AllData), P0018 (see P0011 according to AllData), P0016 (see P0011 according to AllData).
2012 Subaru Outback 3.6R Limited 3.6L MIL Lamp on VIN: 4S4BRDKC3C
Well, thanks for all the replies, and I guess the fad now is to scare the crap out of you when you have a software glitch or a loose gas cap. I can see the inconvenience of losing cruise control until the car is scanned for codes, but the flashing brake light ...
2010 Toyota Tacoma 2.7L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 5TENX4CN0A
Thanks for the replies. Denver thought it might be a crank sensor, but my RPM's stayed right on track. Timothy and Lester both suggested replacing the PCM. I would have replaced it but I believe I found the problem. The ground cable on the battery had a white... Trouble codes: U0100 (ABS lost communication with ECM).
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