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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 27, 2017
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Open Help Requests for All Makes and Models
Help Request Answers
1995 Chevrolet S10 2.2L cylinder #4 misfire when hot VIN: 1GCCS1440S
runs good cold- when warmed up or driven, starts misfire on cylinder #4 that can be heard thru exhaust- pulled valve cover- checked pushrods, rocker arms- OK not losing injector pulse or secondary ignition- but only affects cylinder #4 - #1 companion cylinder ...
2007 Chevrolet Cobalt LT 2.2L Unknown VIN: 1G1AL58F87
This Cobalt came in with the check engine light on and had this code for the transmission range sensor. I replaced the sensor but code still comes back after about a mile of driving. I took harness apart and inspected wiring and didn 19t find any problems. Any...
2013 Chevrolet Sonic LT 1.8L timing belt VIN: 1G1JC6SH3D
For some reason it won't decode the vin. I have a 2013 chevy sonic with a 1.8 engine. A code came on the cluster saying the timing belt is due for service. I didn't even know these had a timing belt. Reading the procedure in mitchell it identifies 4 special ...
2003 Ford Escape XLS 3.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FMCU02153
vehicle mostly when cold bucks and dies. when the accelerator is pressed vehicle doesn't rev up and has no power. if left idling the vehicle will idle fine and then start to low idle surge. again pressing the throttle has little to no effect. will usually do t...
2002 GMC Savana 3500 6.5L Poor Idle Quality VIN: 1GTHG35F32
Here go's , this vech.came in with a heavy black smoke under light or moderate acceleration. Vech. was idelling around 700 to 750 Desired timing 0.0 (key on eng off ) Actual timing 13.0 ( key on eng off ) Tdc Off set 0.70 . I am using Prodemand for my imformat... Trouble codes: P1218 (Injection pump calibration circuit)
2006 Honda Civic LX 1.8L shift sol. b VIN: 1HGFA165X6
i have no power from pcm to shift sol. b when in gear or in fucntion test. can hear sol. if i put power to it.
2010 Honda CR-V EX-L 2.4L Poor Idle Quality, rolling idle VIN: 5J6RE4H7XA
Vehicle's engine exhibits a rolling/rough idle - off idle is fine. Cylinder head timing chain/guides/tensioner were replaced at dealer - confirmed timing marks are on. Off idle is 100% fine with plenty of power. Has normal compression across all four cylinders...
2008 Jeep Compass Sport 2.4L Excessive Emissions, Misfire, MIL Lamp on VIN: 1J8FFF7W18
hello, friends, this Jeep had a strong odor, like a catalyzer burn, the mil light is on, when I press the accel. Pedal, the light is blinking, I change a set of injectors, but the problem continues, p0300 is always present, but the engine idle is ok, I make a ... Trouble codes: P0300 (testing and results)
2006 Kia Optima LX 2.4L MIL Lamp on VIN: KNAGE12356
This Kia has a check engine light on and no codes. I have used 3 different brands of scan tool with both generic and vehicle specific data and every one says no codes found. If you clear the codes it will shut the light off for a couple of days. If I run a gen...
2012 Mazda 3 i 2.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: JM1BL1V8XC
Mazda 3 skyactic with 38,000 miles very hard starting and when it does will stall out unless your on the gas. After started vehicle will stay running but idles very rough. Doesn't seem to have any drivabiliy problems driving down the road mainly at start up an... Trouble codes: P0172
2015 Mercedes-Benz C300 4Matic 2.0L Poor Idle Quality, Misfire VIN: 55SWF4JB4F
I have swapped the spark plug, ignition coil, fuel injector, and checked the wiring for cylinder number 1 and cannot get the Misfire to move to another cylinder. As soon as you raise the RPM 19s over idle the Misfire goes away. I 19m not sure what the idle cam... Trouble codes: P0301 (Cylinder 1 Misfire)
2007 Mini Cooper 1.6L Hesitation, Cuts out VIN: WMWMF33557
PLease help. after replacing the dme for the injector and ignition signals cutting out when all inputs look good, the new DME is doing the same thing. crank sensor signal looks good, as do cam signals. I cannot understand why DME would stop grounding the outpu... Trouble codes: P0326
2008 Pontiac Torrent 3.4L starting VIN: 2CKDL43F78
previous shop replaced bcm ecm and theft deterrant module. there was no master key programmed we had a new key cut and relearned key. theft data is showing learned key. but pcm data is not going into learn mode for code request and does not have code learned. ...
1997 Porsche 911 Carrera 3.6L Alarm VIN: WP0CA2991V
This is weird one, car came on the tow truck. Any time hooking up the battery the alarm starts to go off, lights flashing the trunk light also flushing,car won't crank. . I tried locking and unlocking the car using the drivers door and turning the ignition on ...
2011 Ram 1500 Laramie 5.7L Misfire VIN: 1D7RV1GT6B
this vehicle has an cylinder 3 misfire under load around 3000 rpm. no misfire at idle or cruise. I have replaced the coil. checked fuel pressure. checked injectors. engine has an ticking noise on the left bank. any one else run into this concern before? Trouble codes: P0303
2009 Saturn Outlook XE 3.6L Stall VIN: 5GZER13D09
got a good one here. customer broght this vehicle in from another shop. the other shop replaced fuel pump, fuel pump control module, low fuel pressure sensor, and high pressure pump. i replaced and programed the pcm due to the pcm turning off the fuel pump mod... Trouble codes: P0087, P0089, P0628, P069E, P025A
2015 Toyota Highlander XLE 3.5L nav radio VIN: 5TDKKRFH7F
Hello. I have this highlander and the complaint is the Nav and radio systems both stop working intermittently while driving and Nav will display Check surroundings for safety while camera images are displayed, when problem happens. It happens a few times a day...
2004 Volkswagen Beetle GLS 1.8L Mechanical VIN: 3VWCD21Y54
Group hope someone can help. This beetle came in overheating and found water pump had come apart. It was running fine but just getting hot per customer statement. I replaced timing belt, water pump and tensioner parts. Once started is missing. Rechecked my tim...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2012 Audi S5 4.2L timing chain VIN: WAUVVAFR8C
Thanks for all of the helpful replies.As I suspected,it is BIG TIME overkill to do a chain and rail job on this car with this mileage and no symptoms. This version of the 4.2 does not have rail issues like the earlier models did.The rails and chains that...
2001 BMW X5 4.4i 4.4L Poor Idle Quality, Stall VIN: WBAFB33591
Thanks so much for everyone that took the time to reply and offer their help. This was probably the wildest and hardest problem i have had to deal with. I failed to mention in the help request why we replaced the DME. during diagnosis we found that the DME was... Trouble codes: 0075 (signal Throttle potentiometer), 00E8, 00E6, 0076 (signal Throttle potentiometer), 008C, 0086 (learn function lower stop throttle actuator).
2003 BMW 745Li 4.4L Secondary air inj VIN: WBAGN63453
The struggle goes on so far we pressurize the air injection tube below the manifold no leaks found removed check valves no problems found, no codes at all that pertain to low air flow, Rich lean anything else, created vacuum leak while air pump was running to ... Trouble codes: 2828 (DME not receiving message from ARS).
2005 Dodge Grand Caravan SXT 3.8L Poor Idle Quality, Hesitation, Misfire VIN: 2D4GP44L35
Thank you guys for replies. This van is fixed. I ended up replacing customer installed new coil with OE coil. I guess new AZ coil didn't work so well?? Here is the waveform after OE coil. Thanks everyone!!
1990 Ford F-150 Custom 5.0L Poor Idle Quality, Misfire VIN: 1FTEF14N9L
Thank you to all who took the time to reply. The fix ended up being a new set of sparkplug wires. We trashed the Made in China junk ones and bought a set of Motorcraft sparkplug wires and all is well. Shame on us for trying to save the customer money with the ...
1998 Ford F-150 XL 4.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 2FTZF1723W
After testing all the o2 sensor circuits and performed complete pcm pin voltage chart testing could not find anything wrong. The PCM o2 feedback control was completely inoperable. The fuel injector pulse width stuck at 6.5-7ms PID and showing actual pulse widt... Trouble codes: P1132 (o2 reads rich b1s1), P1152 (02 reads rich b2s1).
2008 Ford F-450 Super Duty XL 6.4L No Start VIN: 1FDXW47R28
Thanks for the help everyone. It ended up being the high pressure fuel injection pump. I also replaced the pump cover gasket seeing as they have had issues with them,even though it looked ok. Thanks again Mike Trouble codes: P120F, P2291 (Injector control low pressure cranking).
2009 Ford Ranger XL 2.3L compression VIN: 1FTYR14D09
Good morning all, this Ranger had sticking valves from a gross foreign substance that had been in the fuel. I believe the intake valves musta stuck some, hit the piston, made the chain jump. We sent the head to the machine shop, cleaned the fuel system, retime...
2013 Ford Escape SE 1.6L No Start VIN: 1FMCU0GX9D
Well that turned out to be a problem caused by not fully reading the procedure.Most everyone hit it right on the noise with it being a timing problem.As it turns out my valve timing was right but I did't have the proper tool to align the crank pulley so my ign...
2017 GMC Savana 2500 4.8L Accessories VIN: 1GTW7AFF7H
Hello and thanks to all that replied.Even though this truck had the wiring under the dash,it did not have any wiring to the rear of the truck,searched high and low,no wiring.So I had to "old school"it and ran all the wires to the rear of the van.I tapped into ...
2006 Jeep Commander Limited 5.7L #7 cylinder VIN: 1J8HG58206
After pulling the heads replacing the camshaft and lifters timing chain lapping in the one the exhaust valve car runs great no more problems used correct engine oil, no codes Thanks for your help
2001 Lexus RX300 3.0L Steering Angle VIN: JTJGF10U21
Thank you guys for all the help. We replaced the Rack and pinion with the bushings. After we took it on a long drive and no issue with the slip light or vehicle cutting engine power and no loud beeping noise.
1999 Lincoln Continental 4.6L Unknown VIN: 1LNHM97V7X
I informed customer the best repair would be to replace the transmission; however that was not economically possible for her. The problem was a clogged primary (in the radiator) transmission cooler. I pulled the trans pan, no bits or chunks of metal, just clut...
2003 Nissan Altima SE 3.5L MIL Lamp on VIN: 1N4BL11D13
Added sea foam to the gas tank and had customer drive through existing tank of gas. He was able to get through inspection with no problems Trouble codes: P0172, P0175.
2005 Pontiac Grand Am SE 3.4L Extended crank time VIN: 1G2NE52E05
Thanks for the help team. The fuel pressure regulator vacuum line did not appear to have any fuel in it but replaced it anyway and it cured the problem.
2012 Ram 1500 SLT 5.7L No Start VIN: 1C6RD7LT0C
I explained the situation to the customer as far as installing a bypass relay as many of you had suggested, he decided to have me install the complete TIPM. I installed and all is good. Thanks as always for your input.
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