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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 1, 2012
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
2006 Acura RL 3.5L Draw VIN: JH4KB16536
HELP ! Customer recently purchased this well kept 2006 Acura RL. Battery goes dead if left sitting for over 3 days. There is a 1.3amp parasitic draw that goes away of you pull out underhood 40amp fuse OR drivers side under dash fuse #7. I read all the posts ab...
2001 BMW X5 3.0i 3.0L Ihka Controler VIN: WBAFA53591
we have found the HVAC IHKA controler defective. In oct 1st. 2009 a reply to a post mentioned a capasitor that fails inside the controler. Eric Lora from Houston TX. made mention of a ( .47 Farad 50 volt Copasitor )that is the fix for the no operation and Blan...
2002 BMW 325i 2.5L abs module
Hi Guys, the vin I got is [...] when the car comes back I will recheck the vin. This car came with a dead battery and alternator, also have some bad grounds on an aftermarket sound system. Also had the MIL for the cam sensors. We replaced the batt...
2006 BMW 330i 3.0L No Start VIN: WBAVB33596
Hi all, Car was towed in as a no crank,no start,everything powers up ,battery good,no check engine light, pulled immobilizer codes A0B2, A0B4, A0B5 i can't find much information on these! I have tried a different key , fuses are all good, cleared the codes not... Trouble codes: A0B2, A0B4, A0B5
2003 Buick Century Custom 3.1L Misfire VIN: 2G4WS52J63
Some much for easy. Car came in for rough idle. Found #3 cylinder misfire counts rising quickly. Scope tested ignition system and could see #3 pattern was different. Look lean. Scoped injectors and all patterns looked the same. Flow tested injectors and all ga... Trouble codes: P0300 (Misfire detected)
2006 Buick Rendezvous CXL 3.5L steering VIN: 3G5DB03L06
We have this Buick Rendezvous AWD that has this strange "moan" when turning while moving slowly. It sounds as if it is coming from the front of the vehicle. We are aware of the rear differential fluid change but do not want to make that change if the noise is ...
1994 Chevrolet S10 LS 4.3L Poor Idle Quality, Misfire, Low Power VIN: 1GCDT19W0R
Poor idle quality. Misfire when cruising about 45-55 mph and slight throttle applied (miss goes away with no throttle). Misfire with RPMs raised and vehicle stationary. No check engine light/codes. Sparkplugs were in very poor condition: some dry, some ...
1994 Chevrolet Lumina APV 3.8L Fires, then dies
Brought in by another shop, fires up every time, dies immediately, see related repair
1994 Chevrolet K3500 Cheyenne 6.5L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GCHK34F6R
Truck came in crank no start. No pressure to fuel filter. Lift pump was bad-installed new lift pump and filter. Tried to start and would not. Verified main injection pump was bad as well and ordered replacement. Installed brand new Stanadyne unit complete with... Trouble codes: 17 (High resolution circuit fault), 18 (Pump cam reference pulse error), 35 (Injection pulse width error/response time short), 36 (Injection pulse width error/response time long), 54 (Pcm fuel circuit error), 88 (Tdc offset error)
1996 Chevrolet K1500 Cheyenne 5.7L power steering VIN: 2GCEK19R1T
I have a simple system that is turning out to be a headache. I have power steering that works fine when driving, but in the parking lot it goes away. If you sit still and turn the wheel back and forth a few times the power steering quits and the fluid gets aer...
1999 Chevrolet Tahoe 5.7L cyl 3 VIN: 3GNEK18R5X
thanks in advance for all help and suggestions. i don't understand what could have gone wrong, pulled upper intake to convert injectors to mfi, completed job. upon start up, heard instant rattle/slap/ or knock. cylinder 3 now has misfire. compression test dry,...
2005 Chevrolet Impala 3.4L Surge, Misfire, MIL Lamp on VIN: 2G1WF52E85
Came in with a P0300 misfire code and no driveability complaint. On road test under light load only we are getting misfire counters on all cylinders but mostly on #4 and #1. Can feel it when power braking lightly also.Plugs and spark output good, swapped coi... Trouble codes: P0300
2006 Chevrolet Uplander LT 3.5L park assist VIN: 1GNDV33L26
Hello all GM techs I want to thank you in advance for any advice you can give. We have a 2006 Uplander and the ultrasonic park assist just stopped operating, according to our customer, it worked fine one day and the next morning it stopped operating. I will be...
2007 Chevrolet Colorado LT 3.7L wont start VIN: 1GCDS13E87
Vehicle will start n run just fine for a day or two thn suddenly i open key security light will b flashing n truck wont start, i relearn the pass lock key again n it starts just fine. Theres times i have to do this 3 times a day, hope u can help n always thank...
2005 Chrysler Town & Country Touring 3.8L power VIN: 2C4GP54L35
vehicle has been in numerous times for interion lights flickering. intermittently, gauges seems to perform a sweep. Vehicle acts as if it has momentarily lost power to everything, then it is fine. I cannot find any ground in common with everything that goes. h...
2008 Dodge Sprinter 2500 3.0L engine block area VIN: WD0PE84548
Client requested we replace the rear main seal. We cleaned bell housing area and watched leak originate from behind starter. There are bolts going into block horizontally that hold main caps. It appeared to be coming from one of the bolts closest to starter on...
2004 Ford F-350 Super Duty King Ranch 6.0L No Start VIN: 1FTWW32P94
this truck towed into our shop with complaint of not starting when cold. the customer has been using ether in morning to initialy fire vehicle then it will run and start all day but next morning wiil need ether to start again. vehicle was driven into shop and ...
2005 Ford F-350 Super Duty XL 6.8L No Start, Stall, Misfire VIN: 1FDSF35Y35
This problem is very intermittent. Customer will be driving at 55 mph and will stall. Sometime after a hot soak it will fail to start. We found water intrusion into fuse box inside vehicle had windshield resealed and problem reoccurs. Mode six date shows a mis... Trouble codes: P0300
2009 Ford F-550 Super Duty XL 6.4L pto VIN: 1FDAF57R69
This is a 2009 F550 4x4, cab and chassis bucket truck with L37m bucket. Has codes that repeat themselves, mainly the P0703 brake code, the PO676 glow plug and then the P162E. However, when using fords poor diagnostic online books to read pids nothing is abnorm...
2007 GMC Yukon XL 1500 SLT 5.3L Fuel Filler VIN: 1GKEK16317
Can't fill fuel tank-vent already replaced per tsb.anybody seen this?
1999 Isuzu Trooper S 3.5L tod module VIN: JACDJ58X5X
I've been using iATN for years and now it's my turn to ask for some help with this Isuzu TOD issue. We've pulled codes and replaced failed components as needed. We've done the code clearing successfully to get a code 12 with all fuctions "normal"(?) with excep...
2004 Jaguar XJ8 4.2L Cooling VIN: SAJWA71C34
Vehicle came in tow truck for overheating condition, had water pump and thermostat assembly with cross over housing replaced with no difference in overheating. You drive at highway speeds fan runs at low speeds but never do you see it run at full speed since i...
2002 Jeep Liberty Limited 3.7L Poor Idle Quality, Stall, MIL Lamp on VIN: 1J8GL58K42
Car drove in with a dead miss on cyl. #2. Valve seat came out, broken lifter bore. Replaced the right cyl. Head, camshaft, lifters and rockers. All new from jeep.i paid special attention to marking and installing timing chain and have rechecked it twice. The c... Trouble codes: P0152 (2/1 o2 short to voltage), P0155 (2/1 o2 heater failure), P0158 (2/2 o2 short to voltage), P0161 (2/2 o2 heater failure), P0175 (2/1 o2 rich), P0500 (No vss detected)
2003 Jeep Liberty Limited 3.7L electric radiator fan VIN: 1J8GL58K13
hello...i have this liberty 3.7 and the radiator electric fan motor does not come on and the engine overheats. the truck is not equipt with a mechanical fan clutch. when turning the AC on the electric fan works correctly. power and ground to the relay and f...
2007 Lexus LS460 L 4.6L No Start, VIN: JTHGL46F47
We have a customer with a Lexus LS460 that has an intermittent no start condition. It seems to happen after car sits for more than 4 hours during the day when the temperature is 80 degrees Fahrenheit or higher and the sun is out. He states that when it happens...
1994 Lincoln Town Car Signature 4.6L No Start VIN: 1LNLM82W0R
customer says that when he drives for a while and cuts car off for a few minutes that it will not start. if he waits for an hour or sothen it will start. we have not car to act up.any help woul;d be thankfull.
2006 Mazda 3 S 2.3L at light flash VIN: JM1BK34436
hi guys hope you can help, this mazda has only one complaint,intermittent thump while driving is what customer stated,i road test for @ 20 miles then finally felt a bucking a/t light flashed once, gear indicator droped from 5 down to 3 and trans followed [down...
2006 Mazda Tribute i 2.3L Cooling Fan VIN: 4F2YZ02ZX6
After replacing the thermostat, we cross check the cooling system to ensure that the cooling fans cycle on and off automatically without the a.c. on. They fail to do so, temperature rises to 235 F and the fans do not turn on. The fans do turn on when the a.c. ...
2004 Mercedes-Benz E320 4Matic 3.2L Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: WDBUH82J94
This vehicle has had an ongoing issue with intermitent driveability issues with vehicle running rough, dieing out, and surging we have done everything from factory flash updates performed at the dealer to crank position sensors, replaced, and even the small au... Trouble codes: P20E2, P20B7, P20E2, P202C
2001 Nissan Pathfinder LE 3.5L Cuts out VIN: JN8DR07Y71
hi guys this vehicle was in my shop 3 months ago no keys replaced key and programmed vehicle start and idle but no power engine doesnt want to accelerate and stall customer state he replaced all injector removed catalyst same removed and inspect timing chain o...
2005 Nissan 350Z 35th Anniversary Edition 3.5L Clutch pedal VIN: JN1AZ34D25
Customer (relative) was driving from New Mexico to Florida to visit. He was bringing me the car and a new clutch that the former owner gave him with the sale of the car. He made it to Mississippi and the clutch gave out so he took it to the local dealer and th...
1970 Plymouth Barracuda 7.2L Carbs VIN: BH23G0B256
This is a old school help request, Thank in advance. This car (clone 1970s 440 6 pack) came to me on tow truck. The customer and my brother did some work to it before it got to me. It had been sitting for about 20 year and had ran great before sitting. My brot...
2001 Pontiac Aztek 3.4L starter VIN: 3G7DA03EX1
Vehicle towed in for no start. Found no voltage at starter solenoid. Traced problem to ground side of starter relay (not getting its ground signal from ECM). So far I have replaced ECM, ignition switch and Park Neutral position switch. ECM ground is good. Any ...
2000 Porsche 911 Carrera 3.4L Fuel Filter VIN: WP0AA2994Y
2000 PORSCHE 911 CARRERA: Does it have a servicable fuel filter, if so where is it located? Thanks for taking the time to ping me back on this. Frank
2006 Saturn Vue 3.5L abs VIN: 5GZCZ53466
This vehicle has a false activation at low speed, just close to stop position, we have snap on solus pro and every time we connect to abs, it disables abs by putting the light on in dash but we can still see the abs data, it however doesn't have a code. We hav...
2004 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH67584
Customer came in with mil on we scanned it and found po173 & po175 present. We checked all components that could affect system. We then cleared codes and customer stated light stayed off for some time ( a couple weeks). Customer returned for us to check it aga... Trouble codes: P0173, P0175
1992 Toyota Camry LE 2.2L Poor Idle Quality, Stall VIN: JT2SK12F0N
The vehicle had no problems after we tightened the battery terminals properly and checked data on ecm etc, ran and drove it hot and cold. Rechecked after sitting overnight and still fine. Customer took vehicle and returned days later said it did it once in mor...
1997 Volkswagen Passat GLX 2.8L Engine VIN: WVWEE83A7V
Not To Familiar With The VR6. I Bought It Knowing I Might Have To Replace The Tranny But The Body Is Great And Thought It Was Worth $400.00. Anyways, It Won't Start. Cranks Fine. Fuel Pressure Seems OK. Compression Low. The Guy "Claims" He Drove It Home But Th...
2008 Volkswagen Passat 2.0T 2.0L engine VIN: WVWAK732C8
Hello techs ive got this 2.0t passat eng code ccta. The chain tensioner went bent the valves.this got taken apart 2 months ago.well im tryin to put back together and i have a tapet roller or dowell about 1/4 round and 1 1/2 inches long can not figure out wher ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2004 BMW M3 3.2L Misfire, MIL Lamp on VIN: WBSBL93424
well it appears this car is fixed. As a number of you mentioned, checking the connector at the injector appeared to be the fix. cleaned and crimped the connectors at the injector. car has been running for a week now. THANK YOU ALL
2006 Cadillac STS 3.6L Stall VIN: 1G6DW67796
I replaced the push button ignition mode switch on the dash. Test drove vehicle many times and gave back to customer. All seems well. Thanks for the input.
1987 Chevrolet Astro 4.3L Cuts out VIN: 1GCDM15Z1H
Thank you for every one taking the time to read my post and reply.the van finally fixed,the problem is the ecm,After all these parts i was replaced didn't fix the problem so i removed the air cleaner housing looking at the two injector,i noticed one of the inj...
1999 Chevrolet Silverado 1500 5.3L lights VIN: 2GCEC19T4X
Thanks for all the replies! I did feel seriously stupid about not seeing the legand on the wiring diagram about the "buss center". I found the problem to be in the connector that is on the left side of the steering column. The terminals on the multi-function ...
1999 Chevrolet Tahoe LS 5.7L wheels VIN: 1GNEK13R5X
Thanks to all for the quick responses. I had to wait see how the repair was going to go because the customer wanted to wait a week to schedule it. I was able to make a difference by adjusting the sector shaft in the gear box. When I explained to the custome...
2003 Chevrolet Silverado 2500 HD 6.6L Surge, Misfire VIN: 1GCHK23183
Ok guys thanks so much for all the answers this is my conclusion, i monitored the balance rate of all eight injectors and none fell outside of the factory specs so the next move i made was to indiviually shut them down with the scanner to see if i could get th... Trouble codes: P0234 (Turbo overboost), P0500 (Vss error), P1094 (fuel rail low wheel idle or fuel cut), P1621.
2006 Chevrolet Uplander LS 3.5L C0040 Rt front wheel speed sensor fault
As suggested by one of the helpful techs... We changed the left front hub assyl even though our snap on scanner was telling us it was the right hub. It's been 3 weeks and no ABS warning light. Thanks to everyone for their advice. - Tom
2007 Chrysler 300 C 5.7L other VIN: 2C3KA63H87
thanks for the help replies. we noticed black paint between coil springs rubbed off so a new set of rear springs fixed the problem, thanks again for your help
2003 Dodge Ram 3500 5.9L No Start VIN: 3D7LU38C83
I'm a little dilatory in closing this post. The vehicle left for a week and a half. It IS fixed, and I owe many thanks to all 12 who replied. The fix was, after all, a heated air intake issue. As you may remember, it had two intake air heater ckt codes. C... Trouble codes: P0541, P2607, P0111.
1998 Ford Mustang 3.8L od light flashing VIN: 1FAFP4048W
the costomer came back on a tow truck after the flush and the tranny took a dump .sent it out to be rebuilt ,i installed another unit ,after that od light was fix also.thank you for all you're help.
1999 Ford F-250 Super Duty Lariat 7.3L Engine ?? VIN: 1FTNX21F8X
The information the guys sent was useful but just didnt want to take the time and money to tear engine way down too much put into already Thanks for the information very informative traded vehicle last week
2001 Ford Ranger XLT 4.0L No Start VIN: 1FTZR15E71
Dang it! Found the tech had used a faulty test lead to check for Injector pulse with the scope. Found that when he checked the CMP. Truck does have injector pulse. Found truck has broken timing chain on passenger side. Ouch. Thanks for the advice guys. Goes to... Trouble codes: B1318, B1483, P1816, B1359, P0500.
2003 Ford Windstar SE 3.8L Engine VIN: 2FMZA524X3
Thanks for the responses we recieved. Unfortunately, we could not complete the repair due to everything was pointing to the ECM which we had no way to program for the customer. We advised that the vehicle be towed to a Ford dealer who could perform the program...
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPX12594
Well I'd like to thank everyone who responded to this request. All of them were right on with a valve not sealing. We pulled the valve cover and one of the intake valve springs was floating around in the cover. Looks like the valve keepers let loose. The cam i... Trouble codes: P0354, P0174.
1992 Honda Accord EX 2.2L 1st gear VIN: 1HGCB7678N
thanks for all the help installed remam tcm new o2 sensor test drove 18 miles everything seems great thanks again for all the help
1999 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1J4G258S3X
Thanx to all, turns out you can NOT re-write the skis code on a used ECM. so i didi some onine searchingand found company that sales reman ecm's plug and ply with youre vin and security code, for a very reasonable price. so i bught , i installed, and all is go... Trouble codes: P0300.
2000 Jeep Grand Cherokee Limited 4.7L MIL Lamp on VIN: 1J4GW58NXY
Alright so this one is still not fixed. I have no signal to either of my coils, i even went as far as cutting the signal wires at the pcm to rule out any kind of wire issue to the coils, still had no signal out of the computer. Performed a wave form test on th... Trouble codes: P0351 (Coil Circuit 1), P0352 (Coil Circuit 2).
2001 Jeep Cherokee Classic 4.0L MIL Lamp on VIN: 1J4FT58S01
I appreciate all the responses you guys have sent me. I had to put this jeep on the back burner for a little bit to work on other cars. I checked the harness and I looked good and tucked out of the way I believe somebody had already replaced it possibly. I b... Trouble codes: P0306, P0304.
2004 Lincoln Aviator 4.6L Monitors VIN: 5LMEU88H44
2005 Mercedes-Benz SLK350 3.5L Variable Top VIN: WDBWK56F85
Had a friend scan vehicle using Mercedes Benz scanner, found that there was no communication with the Convertible top module as i suspected. We Replaced the Convertible top module, and the top once again functioned normally. When i had pulled apart the old mod...
2002 Mitsubishi Galant ES 2.4L Poor Idle Quality, Misfire VIN: 4A3AA46G62
Hey thanks for all the replies I really appreciate them all. This vehicle is almost fixed. After talking to the costumer last friday afternoon I found out that there was more to this story than he had let on to. The kid is about 16 years old and about 2-3 wee... Trouble codes: P0303 (Cylinder 3 Missfire).
1984 Nissan 720 2.4L Stall
thanks to all the great techs that reply to my help request,i need to tell you that this baby is fixed,what i end up doing was replacing all the wire looms going to the transmission,by doing this i was able to get rid of the electrical short that was killing t...
2000 Nissan Maxima GLE 3.0L shift VIN: JN1CA31D1Y
i want to kick myself in the head.i did not see the revolution sensor and replace the speed sensor instead.now i replace the sensor by the rear trans cover that you guys said and it took care of the problem,thank you.i rebuilt this tranny and found a bad pump ...
1999 Plymouth Grand Voyager Expresso 3.3L Cuts out, Stall VIN: 2P4GP44GXX
WOW! Thanks to everyone who replied. This is an awesome group of people that results in a lot of help! I attached a scope to the camshaft position sensor and while driving found that it would intermittently not produce a wave form/signal therefore causing a ...
2001 Saturn L300 3.0L No Start VIN: 1G8JW54R31
Ok. It is now a week since I replaced the wiring harness going to the fuel pump. Car runs fine. No issues. Wiring harness is part # WH3001. This one really took me for a run and several of the responses pointed in the direction of a wiring contact probability....
2005 Subaru Outback i 2.5L cruise contr VIN: 4S4BP61C15
with a generic scan tool the vss is stable. the cruise chuggles then drops out with no chk eng lite or airbag lite. I am in the market for a comprhensive scn tool, most likely it will be autoenginuity (if you have any comment on this please let me know). once ...
1997 Toyota 4Runner 2.7L Cuts out, Misfire VIN: JT3GM84R8V
2004 Toyota 4Runner Sport 4.0L Poor Idle Quality, MIL Lamp on VIN: JTEBU14R64
the fix was replacing the air fuel sensor with oem replacement. has been 2 weeks and a trip and no more symptoms. this was a unusual intermittent fault and i was looking for another fault maybe with oil control valve for variable valve timing or something that... Trouble codes: P0171.
2005 Toyota Sienna XLE 3.3L Ac VIN: 5TDZA22C75
Customer has not returned for fix but I am confident now with your advice that the problem is in the clutch. Thanks!
2005 Toyota Camry 2.4L Alarm VIN: 4T1BE32K25
The Camry is fixed with the remotes working and the flashing light off. The replies to this post were totally helpful. The information you guys provided would be difficult to obtain so I appreciate it very much.
2001 Volkswagen Passat GLS 2.8L Bent valve VIN: WVWPH23B31
Hi Guys, Thanks for all your replys, it was the intake manifold,there was some debris stuck in the intake logged into the plastic. After degreasing the intake and power washing you could seee the material stuck in the air chamber.Customer did not want to repla...
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