Automotive Technicians Technical Discussion and Fixes for Feb 26, 2014

Join Now

Prev	Professional Automotive Repair Technical Discussions for February 26, 2014 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
	1997 Acura CL 3.0L 4 spd trans VIN: 19UYA2250V I pulled this trans and washed, cleaned and rebuilt it. I used a kit from trans force. I have gone through the lock up and shift solenoids and they click and I cleaned them out and their screens twice. It has a new torgue converter,and filter installed. New se...	View
	2004 Audi S4 Avant 4.2L starter VIN: WAUPL68E44 I have gone to the customers house when this problem happens but it is impossible to get to anything on this car with out taking a lot of stuff apart. I was able to check for power out of ignion switch and it is ok. Audi istalled a new neutral safty but proble...	View
	2005 Audi A4 Quattro 2.0L Misfire VIN: WAUDF68E45 Hello Audi VW techs. I have this misfire only under loads. Car drives well otherwise. Starts easy, idles well, normal acceleration is good, cruise is excellent. Misfire is felt near 2500 and over rpms. I've swapped coils and spark plugs with nothing changing. ... Trouble codes: 00768 (Random/multiple cylinder misfire detected P0300 upper limit reached), 00770 (Cylinder 2 misfire detected P0302 upper limit reached)	View
	2003 BMW 745Li 4.4L Excessive Emissions, Poor Idle Quality Hi , thanks for your time . I have this 03 bmw 745li with extremely high crank case vacuum . The owner had cleared trouble codes but tells me there were mixture codes only . We replaced both crank case vent valves as well as the breather hoses to the lower and...	View
	2007 BMW X3 3.0si 3.0L Srs VIN: WBXPC93447 install new passenger seat occupancy mat clear the codes & try to enable it thru autologic but it keep failing , it wont enbale & i got code 72 for occupancy sensor not detected or not enable.Any help will be greatly appreciated... the seat coushin is brand ne...	View
	2005 Cadillac STS 3.6L No Start, Stall VIN: 1G6DW67735 This car has an interesting problem, intermittently while driving will lose ipc, radio, ip/acc lighting, exterior lights then ultimately engine shuts off. usually will turn on abs, stability, air bag, tpms and/or antitheft lights immediately before hand. it oc...	View
	2006 Cadillac CTS 2.8L Unknown VIN: 1G6DM57TX6 good morning tech i have this car came from a other shop the pcm was replaced codes p1629 and u1300 i replaced the theft module with 2 keys light come back on the vehicle start and runs any idea with both codes thank you guys	View
	1997 Chevrolet S10 LS 4.3L Combination Valve VIN: 1GCCS19X1V Would like to have gm new. But no longer avalible..has anyone found aftermarket replacement or anyone who can rebuild these combo valve that bolt to abs assy?	View
	2003 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF52EX3 Well I have stumbled with this one, we did a R&R intake manifold gaskets, per coolant leak inside the engine, put it together and have this high idle problem and MAF sensor code, undo the brake booster vacuum hose from the intake and idles down to normal, and ... Trouble codes: P0102	View
	2006 Chevrolet Express 2500 4.8L high idle VIN: 1GCGG25V26 head scratcher here guys any help appreciated. My customer states that the idle goes really high on start up to point where he has to shut it of then restart truck. also states that the truck will idle high while driving like someone is accelerating it for him...	View
	2008 Chevrolet Uplander LS 3.9L no stat VIN: 1GNDU23108 The only thing that shows up is the check engine light gets a clicking sound from the relay on right panel fuse box light the car is complete dead the brake control module is is cost me a no cummnation with bcm now i have that unplug i can talk to that	View
	2011 Chevrolet Tahoe LT 5.3L unknown VIN: 1GNSKBE00B I am trying to nail this squeak noise down that you can hear at parking lot speed or at a stop from the steering wheel. I tried the lower intermediate shaft yoke and a clock spring with no avail. I can't seem to get it. It is faint enough to the point if you t...	View
	2004 Chrysler Sebring Touring 2.7L no gears VIN: 1C3EL56R74 vehicle drove in shop with only concern of a ses light on. we found a code p0706 transmission range sensor. diagnosed the sensor had failed. we replaced the transmission range sensor, which involves removing the valve body assembly and sensor bolts to the top....	View
	2005 Chrysler Pacifica Touring 3.5L No Start VIN: 2C8GM68495 This car came in running w/ check eng light on. Code found was p0072. In the process of checking the resistance on the signal return wire ,done with the ignition off. Tried to restart the eng and have , no crank and no scanner com. Now the immobilizer light is...	View
	2003 Dodge Durango SLT 4.7L No Start, MIL Lamp on VIN: 1D4HS48N03 Hello, we have an 03 Durango, 4.7 v8. when the car sits overnight, the car will have excessive fuel (we visually saw the fuel with a camera)in them and car is extremely hard to start, with excessive crank and sometimes no start at all. Best way to describe it ... Trouble codes: P0456 (Evap system small leak), P0441 (Evap incorrect purge flow), P0522 (Engine Oil Pressure Sensor/Switch Circuit Low Voltage)	View
	2005 Dodge Neon SRT-4 2.4L Poor Idle Quality VIN: 1B3ES66S55 Ok, guys I'm at my wits end on this one. Here's the problem when your driving and slowing down in neutral the idle will hang up at around 18-2000rpm. As soon as the car stops moving it drops down and idles perfect 750rpm or so. I've swept the TPS with a scope ...	View
	2006 Dodge Grand Caravan SXT 3.8L Windshield washers VIN: 2D4GP44L06 Struggling to figure this one out. Front and rear washers do not work. This system uses only one pump and they reverse polarity inside the FCM to achieve this. We have no operation of either. Using the DRB and accessing the FCM we are setting 2 codes. "Front w...	View
	2009 Dodge Charger SXT 3.5L Instrument Cluster VIN: 2B3KA33VX9 I have another good one,original complaint: no cel,no dome light.paperclip dropped into rear fuse box. I have no check engine light illumination,no courtesy lights,no map light,no turn signal indicator,no ABS warning lamp and no brake lamp warning light.All o...	View
	1971 Ford Mustang Mach I 5.0L Brake system VIN: 1F02F21091 This Mustang came in with little to no brakes. Brake pedal went to the floor upon initial road test. I replaced brake pads, rotors, calipers, and brake hoses in the front. Brake shoes, wheel cylinders, drums and all hardware in the rear. Bled all brakes and ha...	View
	1999 Ford F-250 Super Duty Lariat 7.3L No Start VIN: 1FTNW21F4X hey guys I got one that is giving me the blues.this truck was taken in when I was off,and I wouldn't have taken it in because im not familiar with the ford diesel.this truck has two codes p0380 glow plug circuit fault,p0475 exhaut pressure control valve fault.... Trouble codes: P0380, P0475	View
	2000 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPX18L7Y I have a truck that has a miss at Idle on # cylinder. I can watch #1 cylinder on the contribution test. It stays at -15 cylinders 2,3 &4 will briefly show a miss when the truck is in gear.I moved # 1 coil, spark plug and injector to another cylinder with no ch... Trouble codes: P0301	View
	2000 Ford Mustang 3.8L unintended accelerat VIN: 1FAFP4043Y Customer says that when on freeway, he accelerated and rpm pegged to 7000. Its a stick shift so fortunately was smart enough to put into neutral. Then hit gas pedal a few times and speed returned to normal. Three weeks prior he had a similar incident but idl...	View
	2007 Ford Fusion SEL 3.0L MIL Lamp on VIN: 3FAHP02197 This car was brought in on a hook. Found the coil fuse blown. Changed the fuse and it blew again when we tried to start the car. Pulled the plenum and found 2 coil packs on the back side was burnt. Replaced all 3 coils on the back side and the plugs, changed t... Trouble codes: P1635, P1639	View
	2008 Ford F-150 Lariat 5.4L Ignition System VIN: 1FTPX14548 Vehicle is always powered up even with key removed. It is like running the bulb test but without the key. Multiple codes are stored..B1352, U1900, U2013, U2023, U1950, B1318, B1600, B1681. All Pats codes make sense as the key is not in the ignition. Loss of po...	View
	1993 GMC K2500 Suburban SLE 7.4L transmission VIN: 1GKGK26N4P Quirky one here. (students problem) Truck will not communicate with scanner KOEO. Will scan fine KOER. Will start out driving fine, watch all pids on scanner and roughly 15 minutes into drive, scanner loses communication (engine or trans access) and tranny goe...	View
	2005 GMC Canyon Z85 SL 3.5L battery VIN: 1GTDT19615 Have this Canyon with a parasitic draw problem. The draw is on fuse 34 (TBC) which feeds the BCM. Looking at the outputs on the BCM there is 1 turned on. The descriptor on the scan tool is "Inadvert Power Comd 1". I have looked at the prints on Alldata and can...	View
	2001 Honda Passport EX 3.2L ABS module VIN: 4S6DM58W41 Cust came in and car was a Stolen recovery. ABS worked Before. FR pass wheel speed sensor was dirty and unplugged (loos connection) i cleaned the connection and checked the sensor with the car raised up- checked good. with a multimeter and resistance values......	View
	2008 Honda Element LX 2.4L Turn signals VIN: 5J6YH28758 The vehicle came in originally from the body shop with a coolant switch code. Simple fix, attach connector to sensor. Problem solved. However, the vehicle came back a week later complaining of transmission shift problems. The case was cracked so the transmissi...	View
	2001 Kia Sportage 2.0L ecm VIN: KNDJA72391 Hello, I have a kia sportage that the cust was having issues with it not startering on her at times. I got it to do it here at the shop and now it will crank all day, has 12.6 volts, will fire with starting fluid and I can over ride the fuel pump at the relay ...	View
	2000 Lexus ES300 3.0L No Start, No Injector Pulse VIN: JT8BF28G1Y Car came in for a noise when cold. I personally started this car several times over a period of 2 days with no abnormal noises. I even tried running the lights for a while with the key off so as to lower the battery voltage and thus determine if this could be ...	View
	2000 Lincoln Town Car Signature 4.6L No Start VIN: 1LNFM82W2Y We have a no fuel pressure condition. Jumped to conclusions and replaced fuel pump. Checked relay and fuses...Any help??? Trouble codes: P1260, U1059, B1618, B1318, B1232	View
	2003 Mazda 6 i 2.3L Poor Fuel Economy, MIL Lamp on VIN: JM0GG10310 Hi all, we have a Madza 6 that is logging a P0172 code; intermittently. Long term fuel trim -25 and short term -22 is freeze data. This is the second time we are looking at this problem. When problem occurs car lacks power; like a bad maf. We were able to repl... Trouble codes: P0172	View
	2002 Nissan Sentra CA 1.8L heat VIN: 3N1CB51D22 hi all thecnicians,i have nissan sentra 2002,my problema s no heat from heater during idle,i change termothat, wáter pump,clean heater core,bled systemm 2 times.motos have no overheter,when a press gas around 1500 hundred rpm there is a good heat insuide the c...	View
	2003 Nissan Altima 2.5L Poor Idle Quality VIN: 1N4AL11D63 Customer stated that he just bought the vehicle and it was driving nice till he decide to clean the throttle. Now, the car sits at 1300-1600 rpm. I had read some forum saying that if you clean the throttle on this kind of vehicle, you will need to relearn the ... Trouble codes: P0507	View
	2004 Nissan Maxima SL 3.5L Misfire, MIL Lamp on VIN: 1N4BA41E94 This Maxima has a misfire on cylinder one. After replacing cylinder one coil and plugs misfire is still there. I then removed intake again and swapped plug, coil, and injector with cylinder 2. I put everything back together and still have misfire and code p030... Trouble codes: P0301	View
	2008 Saturn Outlook XR 3.6L wipers on washers on VIN: 5GZER33758 Car is from my dentist. She called & said her wipers come on and washers come on and stay on. hit a bump, sitting still, park, it doesn't matter when or where or how, just totally random. I did quick tsb etc etc search found the heater recall issue and this on...	View
	2001 Toyota Corolla CE 1.8L MIL Lamp on VIN: 1NXBR12E21 I have this corolla giving me a hard time if i watch my fuel trims they bounch around sometimes at 2500 rpm from -20 to plus 20 for no reason then i get a fuel trim malfunction code i changed the maf sensor got rid of the po 171 code but this thing runs great ... Trouble codes: P0171, P0130, P0133	View
	2005 Toyota RAV4 L 2.4L Ecm VIN: JTEHD20V65 Customer tried to start vehicle at -50C- Vehicle block heater was plugged in and working properly. Vehicle would not start - customer cranked until battery dead. He boosted vehicle and we discovered customer initially reversed polarity of booster cables. Vehic...	View
	2007 Toyota Tacoma 4.0L Srs VIN: 5TEUU42N47 Hi fellow Techs. This is likely a self inflicted issue. This Tacoma came in as a trade and was filthy inside. I removed all seats, trim and carpet out for an "on the floor" clean. All including the seats were deep cleaned, fully dried and re-installed. When th...	View
	2007 Toyota Tacoma 4.0L Clutch VIN: 5TEUU42N47 Hi fellow techs. This Toyota has a squeaky clutch noise that is not present with the clutch fully engaged or disengaged. The noise is only present during the clutch fork movement. I removed the fork shield, performed a visual with a scope and used electronic e...	View
	2008 Volkswagen Passat Komfort 2.0L oil pressure VIN: WVWLK73C88 Vehicle was in yesterday for synthetic oil change with Mobil 1 5w30 and Mann filter. Customer returned today with complaint of knocking at idle. Cell phone video indicated lifters rattling. We are assuming a lack of oil, but it was quite cold here this morning...	View
	1990 Volvo 240 2.3L airbag VIN: YV1AA8851L This is a charity case for a girl who works at a homeless shelter. Somebody donated the car but it won't go through state inspection because the airbag light won't go off. We followed the procedure to check fault codes and there is no response from the light i...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 BMW 328i 2.8L Mechanical VIN: WBAAM533XX Thanks for the help. Most of the oil coming from cyl 6 was actually coming from valve cover gasket grommet. I replaced gasket and its a lot better but still burns some oil. Customer is going to run it.	8
	2006 BMW 330i 3.0L Timing VIN: WBAVB33536 Thanks everyone especially larry. We fitted the new cylinder head asssembly and set timing using the same tools as before and everything is running perfect now. That ball/valve in the cylinder head MUST be there for the vanos to operate properly. Hope this ...	8
	1998 Buick Skylark Custom 3.1L turn signals/ hazards VIN: 1G4NJ52M6W OK all I am not giving up on this one. Gotten post all over the place. I did reread my post and sorry I ment to say cant find any shorted wires. This is the switch with the hazard switch in the multifunction switch not in the dash. Just to recap I have a flash...	15
	2002 Buick Rendezvous CX 3.4L No Start VIN: 3G5DA03E92 Thanks for all your responses. Bad wire into crank sensor. Trouble codes: P1189 (Oil sender circuit).	14
	1996 Chevrolet Blazer 4.3L belt VIN: 1GNDT13W0T well i replaced the tensioner and put alittle bit of rtv under belt. quite for the time being.thanks for all the help jim	33
	1999 Chevrolet C3500 7.4L Misfire VIN: 1GBKC34J7X Fuel pressure and volume good, I use a alternate fuel system or sorce. Put the truck back together with new fuel injectors due to spray patteren on 3 of them. It ran better put still not fix, it still wont go in to close loop.	31
	2007 Chevrolet HHR LS 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 3GNDA13D27 thanks for the help(15 replies), we learned alot about crank sensor sinals and how important it is to check the correct years when exchangeing engines, trans and such. the customer has now decided we should put in a new jasper and is going to deal with the oth... Trouble codes: P0315, P0336.	15
	2008 Chevrolet Impala LT 3.5L Runs poorly VIN: 2G1WT58NX8 The car is now fixed. Thanks to all that gave suggestions. The fix was I put an aftermarket sensor in the car and it ended up being no good . Put in an sensor from the dealer and it fixed it.I learned my lesson and wont mess around with aftermarket sensors any...	12
	2004 Dodge Grand Caravan SE 3.3L Accessories VIN: 1D4GP24R94 Well I guess its fixed . I went with my gut after the advice of many responders confirming my original thought, and ordered a used fuse box . then disassembled the box and did find some corrosion not really what I would call alot of corrosion but it was there ...	12
	1991 Ford F-350 XL 5.8L No Start, Hard Start VIN: 1FDKF37H2M Thanks everyone for your input, especially Ryan from BC. The new injection pump was the problem. After a short hot soak (20 mins or so) i had no fuel coming out of the return on injector pump, nor did i have fuel going to injectors. Removed supply line to truc...	8
	2000 Ford Focus SE 2.0L Mechanical VIN: 1FAFP34P6Y Thanks to everyone that helped. We went ballsy on this vehicle. The manufacturer does have a labor warranty for installer of the engine if anything does occur. We removed intake manifold from cylinder head. Rear of engine was saturated with oil difficult to se...	7
	2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L Hesitation, Poor Fuel Economy VIN: 1FTNW21P94 Thank you for all for your responses.I had another Ford deisel tech come in and check our work,and all the pids read correct.Contacted the Navistar tech support and they asked me for an engine ID#. Then they told me that the 03&04 engines were built with a lon...	23
	2008 Ford Escape XLS 2.3L Coolant Temp. VIN: 1FMCU02Z08 Well thanks once again for all the great replies! I was fairly unfamiliar with the characteristics of the CHT Sensor before this vehicle. I went into generic OBDII and coolant temp PID reads about 40F lower than CHT PID in OEM data. Still unsure how this is...	9
	2002 Honda Civic Si 2.0L Overcharging VIN: SHHEP33512 Greatly appreciate all of the help. Especially want to thank James who sent me an excellent 4-page article on these Honda systems. I encourage those that are interested to contact him and have him send you the article, very enlightening! Also wish to thank Lou...	9
	2004 Honda Accord EX 3.0L Engine VIN: 1HGCM66554 After the customer drove the vehicle for a couple days he called me and told me it is now running good and will contact me if it ever acts up again. All I can think of is that there is some sort of wiring issue with the Crank position sensor. Thanks for everyo...	10
	2004 Jaguar XJ8 4.2L Cuts out VIN: SAJEA71C34 Thanks for the replies and my apologies for wasting your time. I posted this for another tech in the shop thinking he had done all the preliminary tests. Wrong. I was going to help him when I got caught up a little and before I did the customer came and got th... Trouble codes: P1235, P1236, P0231, B2565, B2577.	3
	2008 Jeep Wrangler Unlimited Sahara 3.8L Misfire, MIL Lamp on VIN: 1J4GA59108 Thanks for all of the replies. Turns out it was a seeping head gasket. Pulled spark plug and put a scope down hole to look into cylinder. When engine was cooling down and cooling system under pressure you could start to see wetness form around top of cylinder,... Trouble codes: P0302 (Misfire number 2 cylinder).	12
	2008 Mercedes-Benz CLS550 5.5L regulator VIN: WDDDJ72X58 I had to find the zero position of the motor.I used Autologic to find the zero point and reinitialize. Thanks Mark and Mukesh.	8
	1967 Pontiac Tempest 5.3L transmission pang gasket VIN: 235697K102 Thanks for all of the replies from all the gear heads. I used one of the new rubber Fel-Pro gaskets, not cork, installed it dry, and torqued to 13 ft.lbs. That did the trick...no more leaky-leak.	39
	1999 Porsche 911 Carrera 3.4L interior lighting VIN: WP0AA2999X here is what I found ,, the door switches all work , and the ignition was seeming to hang up rather than just the electrical part I ended up installing the whole ignition housing assy all is well thank you to the guys who did respon...	3
	2007 Toyota RAV4 2.4L Cuts out, Stall, Misfire, hard start VIN: JTMZD33V77 ok, customer decided they were going to take the car to dealer as we were unable to locate the source of the lean condition. Final results to all the tests i ran are: Fuel pressure was 60psi, bled down to 39psi overnight. Plenty of volume. Fuel sample looked a... Trouble codes: P0171.	8
	2007 Volvo S40 2.4i 2.4L ignition VIN: YV1MS39077 It had some kind of metal gasket spray in number 4 spark plug hole causing a misfire. Thank you very much for all your help. Jim	10

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