Automotive Technicians Technical Discussion and Fixes for Jul 11, 2012

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	Help Request	Answers
	2000 Audi A4 1.8L No Start, Stall VIN: WAUAC28D8Y Hello everyone and thanks for the help with this one. I have this 1.8 turbo A4 in for an intermittent stall out condition that has been going on for a year or so. The customer will be driving along and off it goes and won't restart until the car is allowed to ...	View
	2008 Buick Enclave CXL 3.6L AirBag Iight VIN: 5GAEV23708 AirBag light illuminates as soon as key is turned on. Code appears immediately after clearing. B0012 Driver frontal deplyoment loop stage 1. According to Alldata and Mitchell, there are 4 "sub codes" that the modis won't narrow down. B0012 (01,02, 04, 0D). Con...	View
	1996 Chevrolet Cavalier LS 2.2L engine VIN: 1G1JF5244T This car with fire with gas pedal to the floor and cranking it sounds like it is flooded but plugs are dry and oil is ok. Replaced ignition module with used one does the same thing. Once the scanner would not communicate then suddenly did. The Theft System lig...	View
	1997 Chevrolet Tahoe LS 5.7L ecm fuse VIN: 1GNEK13R9V Is there anything else on this circuit I missed? Is it a grounded wire in the loom? Has anyone seen this or know of a common place to look for a problem on this series of engines. Also have eliminated the ignition switch. Thanks guys.	View
	2001 Chevrolet Astro LS 4.3L abs VIN: 1GNEL19W61 Hello fellow techs. Am having an intermittent abs application at slow speed turning in a parking lot. No speed sensor codes. Had c0265. cleared it and has not returned. Lab scope on all 3 abs channels shows at rest of 5 km/h. Is this normal? Found TSB for clea...	View
	2002 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29172 When outside temp is hot ~90 degrees the vehicle is hard to start. Longer cranking times. The engine does not overheat. Truck has never died while driving. If drive for 20 or so miles and shut off for about 30 minutes it will crank but not start. When it acts ... Trouble codes: U1000	View
	2003 Chevrolet Astro 4.3L assist VIN: 1GCDM19X63 Hi all, I have a van with hydroboost that gearbox replaced aftermarket almost a year ago. Had developed play, so replaced under warranty again. Bled system as usual, worked fine till it heated up then very choppy assist/noise/pump was hammering. rEplaced pump ...	View
	2005 Chevrolet Equinox LT 3.4L battery VIN: 2CNDL73F75 battery is dead every morning. customer says cooling fan would come on at random when vehicle is off, even hours after shut off. never expirienced this, just dead battery in the morning every day. checked for draw all day for two days and nothing found above ....	View
	2006 Chevrolet Silverado 1500 LT 4.8L Electronic VIN: 2GCEK19V86 Vehicle came in for no A/C operation. Found that when a/c was requested the compressor clutch was not engaging. installed gauges found that pressures all ok. using scan tool, commanded a/c relay on and system began working. then tried turning a/c on with contr...	View
	2008 Chevrolet Silverado 2500 HD WT 6.6L Starting VIN: 1GCHK24678 I don't know if the code set has anything to do with the "no start". When trying to start this truck, there is no power to the starter relay from the ignition. Sometimes it will energize for a split second when you turn the key off and then try and start. I ha...	View
	2002 Chrysler PT Cruiser Dream 2.4L cooling fan motor VIN: 3C8FY68B52 Vehicle originally came in with refrigerant leak. located leaks from compressor and suction hose with dye. after replacement and charging of system found high side pressure exceeding 500 psi. (low side appx 70 psi). discovered cooling fan faulty. no low speed....	View
	2001 Dodge Ram 1500 Van 5.2L No Start, Stall VIN: 3B7HC13Y51 this truck stalls at idle,and sometimes it takes a long time before dying out,when it stalls it displays on the speedometer NO BUS,also it does not comunicate with the scanner it looses the signal in between the BCM and PCM,I already disconnect all the modules...	View
	2001 Dodge Caravan SE 3.3L MIL Lamp on VIN: 1B4GP25391 Thanks in advance. Caravan is driving us nuts. We have a throttle pos sensor low code, 5 volt ref low code. 3 circuits feed from this 5 volt reference. TPS, MAP and A/C transducer. with all unplugged, I still have no 5 volts. Disconnected trans module since th... Trouble codes: 1496 (5 volt reference low code)	View
	2006 Dodge Ram 1500 ST 4.7L Hesitation, Cuts out, poor power VIN: 1D7HU18N86 Greetings. Here today is a Dodge pickup. This past week, temperatures have been in the upper 90's here, and this truck has developed a poor power issue. Driving down the road and truck will barely pull it's own. Continue driving, comes out of it. When first st...	View
	2008 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 2D8HN44H88 This van is driven by serveral different employees of a transportation company. About every 3 to 4 weeks the ses light pops on with this code. Once it had been idling for over 1/2 an hour. Once it was at a stop light. No drivability symptoms reported. We canno... Trouble codes: P1128	View
	2000 Ford E-350 Econoline Club Wagon XLT 5.4L No air from rear unit vents This extended van has dual heat and a/c. Problem: no air comes out of any of the rear vents. The rear blower fan works at all speeds when the switch on the interior ceiling is turned, BUT does not work at all with the "rear" fan control on the dash panel. Note...	View
	2002 Ford Thunderbird 3.9L No Start VIN: 1FAHP60AX2 need to replace fuel pump but cannot find consistent repair information especially for a convertible.i am using a new pump module assm. from ford and would love to know exactly how to replace it ahead of time.at this point i dont know whether to start inside v...	View
	2002 Ford Expedition XLT 4.6L bogs down VIN: 1FMRU15W82 When vehicle is hot and in overdrive intermittently vehicle bogs down like you hit brake for one second and let off. Sometimes it will occur three or four times in a row sometimes it occurs once. With overdrive off not as bad. we're leaning toward T.C.C circui...	View
	2010 Ford F-250 Super Duty Lariat 5.4L Intake VIN: 1FTSX2A59A Really stumped here. We removed the intake on this vehicle to access the firewall behind it for an aftermarket interior installation but now that we put it back on it makes a noise, I'm not sure of how to describe it, its not a whistle or something that sounds...	View
	2005 Honda Odyssey EX 3.5L Misfire, MIL Lamp on VIN: 5FNRL38795 Vehicle will misfire intermittantly for about 30 seconds. Will not misfire the rest of the day. Might go severl days without misfiring. When it misfires it will set two or three misfire codes. The next time two or three other misfire codes. Eventually all p030... Trouble codes: P0300, P0301, P0302, P0303, P0304, P0305	View
	2009 Hyundai Santa Fe GLS 2.7L No Start VIN: 5NMSG13D69 Intermittent no start. no injector pulse or spark. No codes vehicle will start eventally after or upto 30 sec of cranking While customer was driving MIL flashed engine started running roughly. Vehicle has no immobolizer.	View
	1998 Infiniti I30 3.0L Misfire VIN: JNKCA21A4W Hi this car came in with poor idle quality and codes for misfire and knock sensor. I removed the intake manifold to replace the knock sensor and replaced all 6 ignition coils as per TSB. After test drive only codes that came back were p1320 and p0302. Although... Trouble codes: P1320, P0302	View
	2000 Isuzu Rodeo LS 3.2L Misfire VIN: 4S2DM58W0Y Hello everyone, thank in advance for any sugestion regard to this CMP and CKP waveform capture. I have # 5 and 4 cylinders not firing,swaped coils.. the same thing, compresion 146 psi in boths cylinders,no open wire from computer pin 13 red/wht to ION sensing ... Trouble codes: P0335, PR1MA, 1GN1T, 'E'	View
	2003 Jeep Liberty Sport 3.7L Misfire VIN: 1J4GL48K63 We have this Jeep in the shop with a constant misfire on Cyl. 3. Although it does not throw a code I've watched it with the misfire counter. I have done a compression test, tested for spark, tested for inj. pulse, and even moved injectors and coils around. It ...	View
	2005 Kia Sorento EX 3.5L Vehicle Speed Sensor VIN: KNDJC73325 Trying to help a friend out here. This Kia intermittantly goes into limp mode. I pulled the codes and got the P0700 (trans fault) and P0721 (output speed sensor) I monitored the pids on the modis scanner and the VSS 1 (a/t) pid always reads 0. The VSS 2 (ECU) ...	View
	2005 Land Rover LR3 SE 4.0L Accessories VIN: SALAE24445 Truck came in from a body shop to replace the air bags & tensoiners & check the door locks , after installing the air bags & tensoiners ,the truck wont lock or unlock from the remote it works from the unlock & lock buttons, check the wiring at the right side u...	View
	2003 Nissan Maxima SE 3.5L MIL Lamp on VIN: JN1DA31D53 VEHICLE came in with p1705 code, ran pinpoint test found faulty acceleration sensor and replaced. vehicle left and light was back on in a week. recheck pinpoint test everything is within range and no problem found. cleared codes and within a week light was bac... Trouble codes: P1705 (Throttle pedal position)	View
	2004 Nissan Maxima SL 3.5L Cam Sprockets VIN: 1N4BA41E74 I cannot find any torque specs for cam sprocket to cam bolts. It is an 04 Maxima with the 3.5 DOHC. (4 cams) I am looking for the spec for intake and exhuast cam sprocket. I am not sure if this is the appropriate place for this question but after not finding i...	View
	2007 Nissan Titan XE 5.6L engine VIN: 1N6AA06BX7 hi guys, looking for a tip on engine removal. one is the lift points on the engine. doesn't apear to have much to go off of.i'm trying to avoid removing intake.i've got the old motor chained from the pass. side front of valve cover and went off the coolant li...	View
	2004 Pontiac Grand Am SE1 3.4L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 1G2NF52E14 Vec. came complaint Hard start,runs rough,Ckeck engine light on Scan test p0300 ck miss fire data missing on all clyinders #5 the most #6 close to same both crank signals running same rpm on scanner the hotter it gets the worse it runs at idle,very hard to sta...	View
	2006 Pontiac G6 2.4L lean code VIN: 1G2ZF55B36 New cat from GM mass air flow came sensor thermostate coolant sensor Gm air filter no leak check with smoke machine drive good code come on on cruse po171 ECM RE FLASH ANY HELP THANKS	View
	1989 Porsche 944 S2 3.0L torque tube/shaft VIN: WP0AB294XK The 5 speed trans is out of the car and I am wondering if there are tricks to pulling the torque tube. Alldata shows the procedure for a car with an automatic and it seems to be light on details. It doesn't look too hard but the estimating guide says 8-10 hrs ...	View
	2007 Saab 9-3 2.0T 2.0L Starting VIN: YS3FD49Y47 With the TechII and a Saab online subscription we are going to make the used CIM work: add the CIM to the vehicle. The process had no problem with the VIN in the car not matching the VIN in the used CIM. We were given the choise of which VIN to use. We used th...	View
	1998 Toyota Tacoma DLX 2.7L Over Heating VIN: 4TAPM62N0W I installed a new engine it came with a new water pump and thermostat all ready installed so put new radiator and cap belts started engine watched gauges as in a short time it was right below the red so felt the radiator hoses Top hot bottom cold so no water f...	View
	2004 Toyota Prius 1.5L HV battery VIN: JTDKB20U44 Car was driven in complaint HV battery is dead (nothing shown on center dash) mileage is down some. I pulled codes PO420 and B1421. Nothing shown under Hybrid drive system code wise Modis was used and an OTC genysis Red Light of Death is on. at all times driv...	View
	1999 Volkswagen EuroVan MV 2.8L 1-2 Shift VIN: WV2MH8701X Alright fellas. I am at wits end with this thing. It came to me from an outside shop. They put a OE rebuild transmission in this thing at the customer request while doing the timing chains for what I understand was a harsh shift throughout. They got a new TCM...	View
	2004 Volkswagen Golf GTI VR6 2.8L 3rd gear noise VIN: 9BWDH61J44 We replaced this trans with used units and one we got had the same problem, we want to replace the bearing behind the cup on back of trans. Does anyone know if it can be done with out romoving the trans from vehicle? Any special tools needed? Tried to remove b...	View
	1999 Volvo S70 2.4L unknown Hi Folks, Need some help on this one, this is my Aunt's car and the ABS is kicking in randomly even without applying the brakes you can sometimes hear it ratcheting and sometimes when you need to brake the pedal is hard as if you are in ABS mode, you are on ic...	View
	2007 Volvo XC90 3.2 3.2L MIL Lamp on VIN: YV4CZ98217 Piercing squeal after engine is warm at idle, sounds like vacuum leak but so loud i cant tell where it is coming from, any clues? Trouble codes: 174 (Lean), 171 (Lean)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 Audi A4 3.0L fueltank fill VIN: WAUVT68E15 thanks for all the helpfulhints and tips,first I confirmed the gas tank is full,I filled it up till gas was spilling out,then put a dip stick in filler neck, for sure it registered,some replies sugested to remove rear seat,and remove the two covers then I can ...	11
	2001 BMW 525i 2.5L front pump VIN: WBADT43421 yes I have fixed it.the valva body has to be removed then there are 2 plastic nipples between the valve body and the front pump.this car needed a front pump due to the pump bushing spinning in the housing and also ruining the convertor.thanks for the help,it...	4
	2002 BMW 325i 2.5L MIL Lamp on VIN: WBAEV33442 THE FIX FOR THIS VEHICLE WAS THE TANK VENT VALVE ALSO WE HAD A VACUUM LEAK AT THE SECONDARY AIR PUMP VALVE THANKS FOR THOSE THAT REPLIED IATN IS ONE OUR BEST TOOLS THANKS AGAIN RUSSELL Trouble codes: 245 (Flow rate secondary air system bank 1 too low), 246 (Flow rate secondary air system bank 2 too low), 68 (Activation of solenoid valve tank ventilation).	8
	2004 BMW 645Ci 4.4L Charging VIN: WBAEK73494 HI every body & thank you for your help for that bmw problem was Battery ( new battery dealer chenge) i send the car to the dealer	10
	1996 Chevrolet Impala SS 5.7L odometer VIN: 1G1BL52P3T I took the cluster back out and found a burn mark on the circuit board a few inches from the 3 resisters which all had loose solder joints. Soldered in a jumper wire and now the odometer works like new. Thanks for the help. Looks like the customers replacement...	4
	2006 Chevrolet Silverado 2500 HD LT 8.1L hard start. stumble VIN: 1GCHK23GX6 thanks for the replies. seems as though the fuel pump unit was faulty. thanks to Dan for the great tip on isolating the problem. just goes to show that even if you use quality parts you still get failures from time to time. nothing is guaranteed in this busine...	13
	2007 Chevrolet Tahoe LTZ 5.3L master cylinder VIN: 1GNFK130X7 So, today a new master cylinder showed up from the Chevrolet dealer, before I did anything with the new master I removed the old one and tried bench bleeding it with 2 hoses going from the outlets to the fluid in the reservoir. After several full strokes with ...	15
	1997 Dodge Intrepid 3.3L stays in 2nd gear VIN: 2B3HD46T9V I'll close this post for now,the second gear was A transmisson relay fault,the stalling was a EGR problem. After checking every thing else I could think of finily checked the EGR.The solenoid checked ok but at idle the reading went to .36 v but the gas kept fl...	11
	1997 Dodge Neon 2.0L No Start VIN: 1B3ES27C9V I came to the conclusion that it has a bad PCM as everything else was/is working as it should. The customer declined any additional repairs. They said they would just dis-connect the battery everytime they drove it...I would like to thank each and every one of... Trouble codes: P0340.	11
	2001 Dodge Ram 2500 5.9L extended crank hot VIN: 3B7KF23681 well guys i thank to all that reply, after doing some more testing i end up replacing the overflow valve to the return line, and that and didn't fixed it i still crank the engine when hot and if took power off the lift pump pressure would drop all the way to 0...	9
	2004 Dodge Durango SLT 4.7L aux coolant pump VIN: 1D4HD48N64 I replaced the fan clutch and it runs at normal temp now. Thanks for the help.	3
	2003 Ford Explorer XLT 4.0L Timing Chain VIN: 1FMZU73K23 Thanks to those of you who replied. The customer decided to trade this vehicle in, since they had just purchased it about 2 months ago. Again, Thank You for the response and help. Alan	8
	2003 Ford Taurus SE 3.0L Poor Idle Quality VIN: 1FAFP53U43 This one seemed unique. Most replies seemed focused on the leaking intake manifold so common in these vehicles.What actually fixed this vehicle was to update to current pcm programming.Thank you to Rubin from Texas, you nailed it on the head buddy!	14
	2004 Ford F-150 FX4 5.4L Seal VIN: 1FTPW14524 Sorry I have not been able to get the customer to come back in, I am going to put a rear main seal in but have not been able to get him to agree because cost is going to be an issue but will post a fix if he does. Thanks for all the replies.	10
	2005 Ford Vj van 2.4L Accumulator Diagnosed the accumulator, internal solenoid fork jaming. The solenoid isn't returning .	1
	2003 GMC Envoy XL SLE 4.2L Rear A/C VIN: 1GKET16S33 I want to thank everyone for their prompt replies to this problem. It was in fact the rear a/c actuator for the mode. A new one fixed it right up and now the little kids can be cool on their way to vacation.	12
	2006 GMC Savana 3500 6.0L No power, runs poor VIN: 1GJHG39U36 left side downpipe had been previously replaced, new pipe only had one cat instead of 2, the single cat overheated and melted down causing left side to plug up, found it after we cut cat off and looked inside and found now material had all fallen to bottom ope... Trouble codes: P0300 (Cyls 1357 in history only).	3
	1996 Lincoln Continental Anniversary 4.6L Stall VIN: 1LNLM97V4T Hey guys, most of you where curious about unplugging the MLPS to see if this had an effect on our stalling problem, no luck. Couldn't be that easy, right? On a technical "hunch", we replaced the Crank Sensor based on past experience just as a wild shot in th...	11
	2002 Mercedes-Benz S500 5.0L L.Turn Sig.Reflectr VIN: WDBNG75J72 Hi all Thanks for the help,some suggested that the bulbs could be the problem but I knew about the stainless bases.The problem was the drive mirror housing I didn't see anything wrong and all the light in mirror worked,but replacing it was the fix returned to ...	10
	1997 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MELM75W0V I FINALLY FOUND THAT THE AFTERMARKET MAF SENSOR WAS NO GOOD. REPLACED WITH AN OE PART, RESET KAM AND TEST DRIVE. FUEL TRIMS ARE WHERE THEY NEED TO BE. THANK ALL OF YOU WHO RESPONDED AND OFFERED ASSISTANCE. (JE'TAUN) Trouble codes: P0171 (Lean bank 1), P0174 (Lean bank 25), P1100 (Maf ckt intermittent).	16
	2000 Mitsubishi Galant ES 2.4L MIL Lamp on VIN: 4A3AA46G3Y NOT FIXED YET CUSTOMER HAS TO BRING VEHICLE BACK,WILL UPDATE WHEN FIXED.CHECKED CANISTER WAS OK,LINES ALSO GOOD.WHEN CUSTOMER COMES BACK HAVE TO CHECK FILLER NECK. Trouble codes: P0442.	2
	1998 Nissan Altima GLE 2.4L cranks but it won,t start VIN: 1N4DL01D2W Thank you very much to all that responded to this request. The Timing chain guide on the lower chain broke.Thankfully the timing chain did not brake. The timing chain did not jump any teeth, but it had to much slack causing an out of timing condition and low c...	15
	2004 Suzuki XL-7 LX 2.7L engine performance VIN: JS3TX92V04 Well guys, another roach is back on the road! thanks for every ones help. I was so bogged down on this car that I over looked some of the basics. Found the EGR valve was stuck open causing the rough running concern. Replaced the valve and shes running like ne...	9
	2008 Suzuki Forenza 2.0L MIL Lamp on VIN: KL5JD56Z98 Hi All Thanks for the four replies. What I found was the connector that plugs into the trans was loose. making a poor connection. plugged it back in and all is well. Thanks again for the help Trouble codes: 0700 (tcm request), 1855 (manufacture specific).	4
	2005 Toyota 4Runner Sport 4.7L Evaporator VIN: JTEBT14R45 evap core came from napa it was bad. replaced with toyota part. will not use aftermarket when i have to pull out dash. had 4 replies did not help but after 30 years in business never see anything like this before. thanks	8
	2004 Volkswagen Beetle GL 2.0L Cuts out, Stall VIN: 3VWBK31C44 I cleaned the throttle body as suggested, and performed the throttle basic setting relearn. Boss drove the car approximately 30-35 miles, stop and go, and no issues. Thanks for all your help!	8
	2006 Volkswagen Jetta TDI 1.9L Cuts out, Stall VIN: 3VWDT31K86 Thanks to all who replied! You've gota love IATN! This car was at the dealer twice and at another independant for this same problem and thanks to Jeff's tip it is now fixed. I found a broken wire in the main wire harness underneath the air filter housing. It ...	6

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