Automotive Technicians Technical Discussion and Fixes for Jun 15, 2012

Join Now

Prev	Professional Automotive Repair Technical Discussions for June 15, 2012 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
	1999 Audi A4 1.8L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: WAUGB28D4X This car came in with dead battery and shorted out LF door window motor drawing battery down. After motor replaced and car started, idle was unstable and car would cut out and stall on acceleration. Codes returned after cleared almost right away and we replace... Trouble codes: 17967 (throttle valve control fault in basic settings), 17953 (throttle valve controller malfunction)	View
	2004 BMW 325xi 2.5L Vibration VIN: WBAEP33474 This car has a severe vibration under load after it gets warm. After driving at least 30 minutes or so at highway speeds, a vibration will develop that gets gradually worse the longer you drive. It feels like you are driving over the rumble strips on the sid...	View
	2000 Cadillac Seville SLS 4.6L security VIN: 1G6KS54Y0Y We replaced the vtd module because of security light & when we tested after the repair the light stayed off. Customer took car & called back in a couple of days saying the light was back on. The codes are b1009 2734 3055. We cleared the codes and after several...	View
	2005 Cadillac DeVille DHS 4.6L Charging VIN: 1G6KE57Y05 i guys i removed this engine and repalced timing and guide replaced all motor mounts after market vehicle left shop and customer call vehicle wont start i went to the location vehicle wont crank jump starter vehicle crank tow vehicle to shop scan test no commu...	View
	1990 Chevrolet S10 4.3L Poor Idle Quality, Surge, Cuts out VIN: 1GCDT14Z9L Hey folks, Been stumped on this one. Long ft is 128, fuel pressure is 14 psi. Truck first came in with a cold and hot surge with no codes. Used brake clean on intake and vaccum lines, found a bunch of lines brittle with cracks and one section of the intake tha...	View
	1996 Chevrolet Express 3500 5.7L Unknown VIN: 1GCHG35R7T i would like to know what holds the fuel meter body in the upper intake .i can pull it up and soon as i crank the engine it sucks it back down.	View
	2002 Chevrolet Silverado 2500 HD 6.6L Poor Idle Quality VIN: 1GCHC231X2 truck came on the hook. Fuel pressure was way low, about 2mpa when computer asked for 40. So we replaced the primary fuel pump, it was sucking air. Better primary fuel pressure but still no start. Same numbers at the scanner. Went ahed and replaced injection p... Trouble codes: P0087	View
	2003 Chevrolet Venture LS 3.4L No Start VIN: 1GNDX03E73 hi guys ineed some help we raplace the transmission on this van after the trans the van wont crank i check fusses y change the neutral safety switch y che the wires from the ignition they are ok i check the startes relay i have to 12v wires 1 good wires to the...	View
	2005 Chevrolet Silverado 1500 5.3L Battery Light On VIN: 2GCEC19TX5 Hi I have a 05 silverado 5.3L that was giving some trouble to pass D.E.Q. had some codes and found water in the computer conector and corrored the pins so I had to replace the pcm and the seals. afther that everyting else is ok. but now the battery light is on...	View
	2006 Chevrolet Impala LS 3.9L throttle body VIN: 2G1WS58186 Got this car in a couple of days ago had a message on the dash "starter disabled service throttle" it had a code in the ecm for tp sensor 1. I completed the pinout test for the tp1 and tp2 sensors and determined the throttle was not able to pull itself complet...	View
	2006 Chevrolet Equinox LS 3.4L Stalling VIN: 2CNDL13F96 Im a bit new at iatn but ill give you guys the info i got. This vehicle intermitenly will stall when i do a first start it will crank then die crank each time i put it in start position, the system is set to where i can continuasly keep it cranking,. Found n...	View
	2004 Dodge Durango SLT 5.7L No Start VIN: 1D4HB48D44 vehicle has came in twice now,6 months apart. when towed it will not start. Headlamps,windows,horn or starter do not function. The prnd indicator are all lit up. The only way we get it to start is to disconnect the battery and touch terminals together for a sh...	View
	1991 Ford F-150 Custom 5.0L 2 ,3 shift and up VIN: 1FTEF14N1M hellow everyone did rear main oil seal and oil pan gasket due to leaking badly.remove trans with trans fer case . reinstalled. lose 3 quarts trans fluid add 3 quarts. road tested shift first gear fine then no up shift in gear. customer said truck had no shifti...	View
	2001 Ford Taurus SE 2-Valve 3.0L Poor Idle Quality VIN: 1FAFP55UX1 Hi, guys. I got this car with complaine of rough idle, no code .when start the car in the morning it take (1 min. And thirty sec.)for idel to come down to 900 but from 1000 rpm to 900 rpm has kind of vibration then goes away! it take another 30 sec. For idle t...	View
	2002 Ford F-150 XL 4.2L low power VIN: 1FTRF17242 smoke tested intake, egr and lft rear inj seal leaking. It appears the b2s2 may be lazy. Ive read the many reply for this engine and agree I probably need to replace intake gasket but what is throughing me off is the rich fuel condition on bnk 1 causing the lt... Trouble codes: P0172, P0174	View
	2003 Ford F-150 King Ranch 5.4L starter VIN: 1FTRW08L63 vehicle came to the shop with code p0307 #7 cylinder misfire replaced #7 coil and all plugs sold the customer valve cover gaskets and power steering flush completed the work test drove two times and check for leaks no problem called customer to pick up when he...	View
	2004 Ford Crown Victoria LX 4.6L Interior VIN: 2FAFP74W74 I am having a problem with a heating and ac The control had will not switch modes I have replaced to mod door actuator And that did not do anything I have also tried removing the negative and positive cables And holding them together That awful did not do anyt...	View
	2005 Ford Taurus SEL 3.0L Evap core temp sensor VIN: 1FAFP562X5 Customer has stated after a/c is operated for several minutes no exact time. Will stop working and a/c lines appear to be freezing up. Ran system was able to confirm concern. All pointed to a/c evaporator core temp sensor. Well i have removed the glovebox and ...	View
	2006 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAHP53246 Hello everybody, I've got a 2006 Taurus in the shop that is behaving like it has ANOTHER bad fuel tank pressure sender. It came in a month ago with the "fuel cap missing" light on, cel on and P0451, P0454 and P0457 showing. The fuel tank sender was reading 4.0... Trouble codes: P0451 (p0454-), P0454 (p0457-), P0457	View
	2000 Honda Accord EX 3.0L Rpm VIN: 1HGCG2254Y Ok guys basically we have a sitting duck here. This car has been idle for 2 years in some yard. Customer wants to start driving this vehicle again. So we have done many things so far. We have already did a fuel injection cleaning, coolant flushing, transmissio...	View
	2003 Honda Element EX 2.4L 5th Gear VIN: 5J6YH27503 A Short Time Ago Customer Complained About Hard Shifting Into 5th Gear And Noisy When In Either 4th Or 5th. He Didn't Want To Get Into To Much $$$ Cuz Of The Divorce. I Replaced Fluid Thinking Maybe It Might Help. I Don't Know If It Did Do Any Good Because Cus...	View
	2006 Honda Civic LX 1.8L Abs Rt Wss VIN: 2HGFG12666 Can see in data no rt side speed reading, but done same on lt and got reading. I put new wss on rt side and checked wiring harness. any help thanks	View
	1998 Infiniti QX4 3.3L MIL Lamp on VIN: JNRAR05YXW Afternoo Techs, Have this QX that keeps throwing these codes. Checked MAF and tried a known good one - no change, Fuel pressure is right on spec, so I tried to run the O2's rich by shooting carb cleaner into a vac line and the highest they would go was .6 V?... Trouble codes: 1168 (NO CLOSED LOOP- left bank), 151 (lean bank 1), 131 (lean bank 2)	View
	1999 Jaguar Vanden Plas 4.0L Forward and Reverse VIN: SAJKD604XX Hello Group, I have this Jaguar that came in 6 months ago with no forward. I pulled the trans apart and it had the typical broken A - clutch drum. I installed a re-manufactured drum and rebuilt the trans and sent the car on its way. It just came back with a co...	View
	2001 Jeep Grand Cherokee Laredo 4.0L rear seal leak VIN: 1J4GW48S31 it was at another dealer 2 rear seals installed still leaking it didnt go back to them because she is very upset with them.i put dye,ran it and confirmed leak. pulled tranny to check plugs in back of block all ok.with tranny out i noticed oil pan gasket slippe...	View
	2002 Jeep Grand Cherokee Limited 4.7L Compressor VIN: 1J4GW58N62 I have a 2002 jeep grand cherokee with auto climate control system. It is not cooling sufficiently. Its output on low is 55 to 60 degrees. The computer is running the system, scanner shows request and shows it being turned on and off. I only have a solus for t...	View
	2004 Land Rover Range Rover HSE 4.4L ride controle VIN: SALME11424 Hi we need to repair the air suspension on this rover, and cant figure out how to disable it. we have an Iscan 2, and have the abilatiy to acess the system but cant seem to figure out how to disable it. do i need a factory scan tool or can it be done manualy? ...	View
	1964 Mercedes-Benz 190DC 2.0L No power from idle VIN: 1101101213 just replaced hand primer pump. I have driven car before and it is just so lazy from standstill. Starts out in 2nd as i believe is normal but just no torque, once its rolling its all right" feels like 36hp beetle" . Any way to fiddle with the injector pump tim...	View
	1994 Mercedes-Benz S320 SWB 3.2L no a/c VIN: WDBGA32E7R auto has been at shop alot of times. another shop butcherd the engine swap. since then after it set for two years i got it. they said used engine was no good. had broken wire to one coil. since i fixed that. its been running good. came back two weeks ago with ...	View
	1999 Mercedes-Benz E320 4Matic 3.2L ride control VIN: WDBJH82F0X We replaced the shocks on this car.The customer said her boyfriend said they were bad.Did not seem like a bad idea and almost 200k.Aftewards we found out they were trying to cure the rough ride. I have checked every system my Launchn and Modis can get into and...	View
	2000 Mercedes-Benz ML320 3.2L abs VIN: 4JGAB54E0Y Code 1401 I'm looking for the resistance value for the pump A7/3m1 this is reading at 1.045 (meg ohm) Thank You	View
	2011 Mini Cooper Countryman S ALL4 1.6L Cuts out VIN: WMWZC5C53B Hi all, this vehicle has some unique circumstances. It was purchased new as a development vehicle. We bought it and installed a new center coupling (our prototype design) which we control through our own software. In the process we removed the passenger air ba... Trouble codes: P0324, P0335, P0073	View
	1998 Plymouth Voyager 3.0L brakes VIN: 2P4FP2535W Van came in & one complaint was brake pedal pulsing, We've replaced practically every brake part front & rear & still have the same pulsing. Most noticable at higher speeds hard braking, only feel it through pedal, tires were balanced, Front Alignment performe...	View
	2008 Pontiac Grand Prix GXP 5.3L abs trac ABS Light Trac Light and No brake Lights after vehicle driven in the rain or car wash. Once dries out everything works. Codes C0161 for brake pedal position sensor. Found no voltage to sensor, Checked body control module for water intrusion.	View
	2003 Subaru Forester XS 2.5L No Start, Misfire VIN: JF1SG65633 I'am at wits end on this one. After hot shut down, will intermitantly kick back during cranking. Will start and always runs great. Has broken two starters drives! I have monitered all sensor wave patterns, voltage drops, added grounds to each sensor, cleaned a...	View
	2004 Suzuki XL-7 LX 2.7L engine performance VIN: JS3TX92V04 Alright gents, got another brain buster for every one. This suzuki has been in and out of the shop for the last 3 years. one of our techs replaced the timing chains and misc components for a noise concern. truck went down the road no problems. came back a few ...	View
	1992 Toyota Pickup 3.0L Misfire, MIL Lamp on VIN: JT4VN82N0N Have an intermittent code 12 (loss of rpm signal to ecu) truck will run rough when the ecu sees this problem...need help please Trouble codes: 12 (Loss of rpm signal to ecu)	View
	2004 Toyota Tacoma 3.4L Overheats This truck has a Toyota diesel engine installed. It is a factory Toyota 3.0 Liter turbo diesel 4 cylinder. These engines are in all of the Toyota Hilux pickups in Australia. We have completed 13 of these engine swaps with no issues like this one. The engine ha...	View
	2004 Volkswagen Jetta GL 2.0L no communication VIN: 3VWRK69M44 Pulling hair out...Have this 04 jetta no communication with scan tool. have disconnected abs module, has oe radio. what is really wierd about this is that I get communication when the batt voltage is very low ..around 9-10 volts when it is drained to the point...	View
	2007 Volkswagen Eos 2.0T 2.0L MIL Lamp on VIN: WVWFA71F67 This is were euro-spec comes in. We check cam timing found one tooth off intake cam, tried to reinstall (with oem cam holding tools) what we found was, the cam adjuster was jammed from the forceful break of the chain. It was not possible to install the chain c... Trouble codes: P0016 (cam/crank corrilation issue g40 g28), P0234 (Boost pressure reg. N75)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2000 BMW 328i 2.8L Stall VIN: WBAAM5342Y thanks for the info guys, some of you recomended to clean the idle valve, I have elected to replace it instead, just having trouble getting this girl back in the shop. I will also perform a smoke check to the intake as well as check the disa valve as you guys ...	8
	1988 Chevrolet C1500 Cheyenne 5.7L Fuel Injectors VIN: 2GCDC14KXJ Thanks everyone for the help. FIX: It turned out to be the ECM. We swapped the original for a known good one and that solved our issue. CONCLUSION: I would have to guess that the ECM must have been internally shorted at random times or it was thinking it had...	19
	1994 Chevrolet Corvette 5.7L Poor Braking VIN: 1G1YY32P7R Customer did not want to replace ABS unit. We felt that it was causing the pedal problems. Everything else was replaced except the ABS unit.	20
	1996 Chevrolet Express 3500 5.7L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1GCHG35R7T thanks t6o all that replied it was the o ring that had sliped	10
	2004 Chevrolet Cavalier 2.2L Hesitation, Surge, Cuts out, Poor Fuel Economy, MIL Lamp on VIN: 1G1JC52F64 It turns out that someone had put a fuel pump in this vehicle and when they did they managed to pinch the wires for the fuel level sensor. It was back feeding the voltage back to the pcm. Repaired the wires and all is fine. Thanks for the help. Trouble codes: P0122.	13
	2005 Chevrolet Tahoe LS 5.3L Shifting VIN: 1GNEK13Z85 I ended up performing the servo test with a pry bar and sure enough the servo was recieving shift command and band is broken, thank you for all the helpful pointers!!!	14
	2008 Chevrolet Silverado 3500 HD WT 6.6L no crank VIN: 1GJBK34638 thanks for all the replies, followed all data steps, led to replacement of ecm, called dealer it fell under recall for reseting computer even though we never recieved recall notice,everything fine now, recall says computer could lose memory,thanks everyone,da...	14
	2007 Dodge Caliber SXT 2.0L Stall VIN: 1B3HB48B27 HELLO ALL, THANK YOU ALL FOR YOUR HELP. THE CUSTOMER CHOSE NOT TO REPLACE THE THROTTLE BODY IN THE CAR AT THIS TIME, SINCE IT WAS SO INTERMITANT AND THE CAR ALWAYS STARTED. MY STRONG FEELING IS THE THROTTLE BODY WOULD HAVE REPAIRED THIS CAR WITH NO FURTHER IS... Trouble codes: P0522.	5
	1998 Ford Crown Victoria 4.6L lights VIN: 2FAFP71W6W Hey guys thank you for all of your help, I thought I had it licked when I was getting a high resistance from the headlights. Replaced the bulbs and I thought everything was fine. It wasn't. Through some more testing, found the relay for the lighting control mo...	10
	1999 Ford Taurus SE 3.0L Compressor VIN: 1FAFP5XNRL Thanks for the input everyone. Since it's an older car and it was a clutch coil failure and not an internal compressor failure, the customer did not want to spend the extra money to flush the system & replace dryer & orifice. We ended up adding 3 oz. to the ne...	14
	2009 Ford F-150 Platinum 5.4L p/s pump VIN: 1FTPW14V59 i did know about the tsb but did not fall within the dates. ids is supposed to have pressure pids for steering but it only shows voltage so i use the voltage to figure it out. the voltage at the end of full turn to right was diferent the the voltage at full tu...	7
	2006 Honda Civic LX 1.8L vibration VIN: 2HGFG12666 I didn't say it had a roof rack for bikes, it was empty, nothing on it. I took it off and vibration or roar is gone. Owner kept telling me to not remove it. Its got rubber mounts but got to eliminate any possibility. Could feel it most in roof.Took someone wit...	10
	2003 Jeep Liberty Limited 3.7L CD player VIN: 1JAGL58K13 The customer did not want to pursue this any further at this time. He will do without the cd player for now. Seems like it will need a new radio or that one repaired. Thanks for the replies.	2
	1993 Mazda RX-7 1.3L Coolant Level VIN: JM1FD3322P Thanks for all the replies. We ended up trying the sensor/switch. Located under the engine coolant cap (1 wire). Even when it is submerged in coolant light would still turn on and buzzer sound. Tested it as Alan had suggested in the replies and sure enough the...	3
	2002 Mercedes-Benz CL500 5.0L ride height VIN: WDB2153752 it was the pressure valve leaking causing the problem,replaced got a repair kit from benz[$230.00 au]1 o ring and fitting sleeve,most expensive oring i have seen,but what is the cost when it fixes the problem. thanks all	5
	2004 Mercury Grand Marquis LS 4.6L electric cooling fan VIN: 2MEFM75W94 Thank for all of your replies.I disconnected the pcm and the cooling fan assembly and checked the wire with an ohm meter and the wire was open.So I cut the wire at the pcm and the fan harness connector and ran a jumper wire and sure enough when the a/c was tur...	8
	1998 Mitsubishi Space Runner 1.8L RH rear lights & Dash lights Fixed. Found 3 shorts to earth at rear of vehicle and removed the dash and found a short to earth. Repaired all shorts & everthing worked as it should. Thanks.	None
	2001 Nissan Sentra GXE 1.8L Cuts out, Lack of Power VIN: 3N1CB51D91 Although I am 99% this was a Maf issue this car had all sorts of other issues, there was no signal to #4 coil customer had put a junkyard computer and coils in it that I believe we're the wrong ones. They did not have the money to pay for diag so they junked i...	18
	2004 Nissan Sentra 1.8L Poor Idle Quality, Hesitation VIN: JN1DB04T84 So i pulled off and inspected the cat, the front end of the honeycomb showed small signs of deteriation but nothing like i was expecting. i flashed my torch through the other end and saw very little light emerging out the other side. So i decided to chuck on a...	4
	2004 Nissan Quest SL 3.5L Stall VIN: 5N1BV28U04 All of the replies said to just replace the CKP. I had one overnighted in and the van is gone. Thanks for the help. Tim Trouble codes: P0335 (Crankshaft Position Sensor).	3
	2002 Porsche 911 Carrera 3.6L Leak VIN: WP0CA29992 Thank you for the great advice. I offered to repair the transmission by making my own gaskets, the customer is thinking about it and will likely return shortly for the fix. Thanks Again! Eric Top End Motorwerks	4
	2008 Saturn Aura XE 2.4L Alternator VIN: 1G8ZS57B08 THANKS GUYS FOR ALL THE RESPONSES, ESPECIALY TIMOTHY.IT ENDED UP THAT SOMEONE PREVIOUSLY ADAPTED A MALIBU ALTERNATOR WITH A DIFFERENT PIG TAIL. BOTH ALTERNATORS LOOKED A LIKE BUT HAVE DIFFERENT CONNECTORS. WE SIMPLY INSTALLED THE PROPER ALTERNATOR WITH CONNECT...	5
	2007 Suzuki SX4 2.0L air bag VIN: JS2YA41197 my problem is aternator...over charging voltage arond 18...for my aig code high voltage i have change my alternator and clear air bag code and all it s ok thank you	3
	1988 Toyota Pickup 2.4L Surge VIN: JT5RN55T3J IATN IS GREAT, Daryl from Texas AND Kenneth from California WERE RIGHT.,THERE IS A SMALL SPLIT ON hose between the MAF and the throttle. IT IS VERY DIFFICULT TO SEE. REMOVE HOSE AND REPAIR SPLIT, INSTALL . RUN NORMAL. THANKS AGAIN, [...]	4
	2005 Toyota Sienna XLE 3.3L compressor clutch VIN: 5TDZA22C45 I had to replace the a/c compressor to fix vehicle. Thanks for all the replies.Randy	15
	2002 Volkswagen Passat GLS 1.8L noise VIN: WVWPD63B62 wanted a second opinion noise, so sent it to the dealer and they confirm that noise is from turbo again, needless to say putting in another turbo, this one from vw.	6
	2006 Volkswagen Jetta TDI 1.9L MIL Lamp on VIN: 3VWDT31K86 I found a problem with the wiring harness coming down the front of the engine and going underneath the air cleaner housing. The vibration from the diesel causes the wires to vibrate and wear inside the hard plastic wire loom. Some wire spicing and its fixed. T... Trouble codes: 403 (EGR control circuit), 16785 (insufficent EGR flow), 17808 (EGR circuit malfunction).	6

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