Automotive Technicians Technical Discussion and Fixes for Feb 29, 2012

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	Help Request	Answers
	1982 BMW 528e 2.7L Front pump seal VIN: WBADK8300C This 528e is leaking transmission fluid from the bell housing when it is running. It appears the front pump seal is leaking, however it isn't easy to see up into the bell housing so nothing is definite. I have removed quite a few manual transmissions out of th...	View
	2006 BMW 325xi 3.0L starting VIN: WBAVD13516 Hello iatn, i am so thankful for insight from other skilled technicians. I have reached a point where i am stuck on this car and truly dont know what to do. this vehicle is one i purchased as a freshwater flood. it was flooded about 3 months ago. i know i know...	View
	1992 Buick Roadmaster Limited 5.7L EGR System VIN: 1G4BT537XN Tried also a new ECU, verified prom with dealer, checked wiring continuity from ecu to the solenoid. All input sensor replaced. Checked all ref voltage ground and signal to the input sensors. Also jumped a bypass wire from ecu #435 gray pin # A4 to egr solenoi...	View
	1987 Chevrolet R10 Custom Deluxe 5.7L fuel selector switch VIN: 1GCDR14K4H i have a 1987 chevy r10 pickup with dual tanks that do not switch. put on new selector valve and dash switch. no power is present at dash switch but cannot find a wiring diagram that is helpful. have found pink wire at fusebox does have power. I would apprecia...	View
	1996 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCS13W8T This truck has a code P1345 CKP/CMP correlation problem. The customer installed a crate motor and now have this code. I have been here many times and have always reset the distributor and set with scan tool. This one however has a distributor in it with a fixe... Trouble codes: P1345 (Crank/Cam Correlation problem)	View
	2006 Chevrolet Trailblazer LT 4.2L Excessive Emissions, Poor Idle Quality, Stall, Misfire VIN: 1GNET16S16 This trailblazer came to us from another shop because of an intermittent stalling issue. They had already replaced the throttle body assembly and the cam position actuator solenoid. Test drove and couldnt get it to stall so brought it back to the shop and let ... Trouble codes: P0300, P0017	View
	2008 Chevrolet Silverado 1500 WT 4.8L Mechanical VIN: 2GCEC19C78 this vehicle was towed in for no start found a loose connection at the battery,tighten this and that took care of the no start,now the customer complains that gauges are erratic and lights on ip flicker at times,checked a ll connections and found no problem,ha...	View
	2009 Chevrolet Equinox LT 3.4L Electronic VIN: 2CNDL53F19 Techs, This 09 equinox has an intermittent traction control lite on (dash light) with code C0460. The customer has no steering issues or any other problems other than an intermittent light and message to service stibilitrack. He said he went on a 300 mile tri...	View
	2005 Chrysler Crossfire SRT-6 3.2L abs light VIN: 1C3AN79N05 This vechile came in with a complaint of the BAS light and ABS lights on. In the scanner diagnostics, there is not a mode for antilock brakes, only BAS. When I scanned it initially, it had 2 codes. C1201 (Undocumented code), and 1410 (drive test-active). I che...	View
	2005 Chrysler Town & Country Limited 3.8L MIL Lamp on VIN: 2C4GP64L05 I am trying to reprogram a used ecm with little luck. The used part came flashed for a 3.3. I need to flash 3.8 calibrations in it. Vin has been updated with no problems and vehicle starts. Mopar tech authority site says calibrations are up to date and will no...	View
	2002 Dodge Ram 1500 SLT 5.9L ABS sensor and ring VIN: 3D7HU18Z02 Truck came in with a noise complaint in the rear differential and ABS light and brake light on. Customer states that the ABS system has always been a problem, [ light on dash always on, dealer unable to fix,] Upon inspection of differential, found gear oil to ...	View
	2007 Dodge Sprinter 3500 3.0L MIL Lamp on, slight lack of power VIN: WDXPF44537 Hey guys, I do not have much experience on these Sprinter vans but the P0101 code has returned 3 times after clearing. The local dealer says that they are not having Air Flow Sensor problems. Does any one have any experience with this code and fix? Thanks for ... Trouble codes: P0101 (Mass air flow performance)	View
	2001 Ford F-250 Super Duty Lariat 5.4L readiness test VIN: 1FTNX20L91 Owner said he has never had the "check" engine come on. It is not on now & this vehicle has only 2 monitors that will not run. There is no signs of electrical tampering, no security system, no radio's, etc. This is a fed. emissions build. It is single fuel. T...	View
	2004 Ford Escape XLT 3.0L theft system (PATS) VIN: 1FMYU03184 Customer stopped at a gas station, went to restart and the theft light would just flash, no crank. Scanned for codes, B2103 PATS Transceiver circuit fault. Ford's flow chart says "replace transceiver." No other test or information found. Replaced transceiver w...	View
	2007 Ford Fusion SE 3.0L AC Clutch VIN: 3FAHP07107 Vec came in with no AC Check all system in heating ok ac cluth not engaging test relay and all fuses PCM not grounding relay to energise clutch.Scan tool would not comunicate with ecm so I replaced ecm and had reflashed by ford Now scanner comunicates does not...	View
	2004 Honda Accord EX 2.4L engine VIN: JHMCM56834 This one has me stumped, vehicle came in with misfire codes on all cylinders and a VTC timing overadvanced code. popped the valve cover off and checked the valve timing and the chain was off two teeth and the cam actuator was not returning to base setting and ...	View
	2007 Honda Odyssey LX 3.5L transmission VIN: 5FNRL382X7 this is a very intermitent problem on my father in laws van.i havn't experienced this my self so i'll try to explain it the best i can. when accellerating 40 to 50 mph sometimes it seems to bind up and will slow the van down to 20mph very fast as if you steppe...	View
	2000 Isuzu Trooper Limited 3.5L drive position VIN: JACDS58X9Y This vehicle has a 4l30e transmission..When in drive position vehicle starts in 2nd or 3rd but when in 1,2 or 3 it starts off in first if you start in any selector position but drive it works fine and goes into drive just fine if shifted from 1,2,or 3 to drive...	View
	2002 Jaguar S-Type 4.0L heater VIN: SAJDA01P32 customer states no heat in car. I found car did put out moderate heat if a/c compressor is turned off. Heat immediately dissappears is compressor is turned on. It should put out full heat whether compressor is on or not as noted on our good test car. All 3 hea...	View
	2004 Kia Sorento EX 3.5L Memory Fuse in underhood fuse block VIN: KNDJC733X4 Vehicle came in because all interior lamps are inop and other interior electrical issues. Found Memory fuse in underhood fuse box open. DVOM shows direct short to ground. The problem I am having is I would like to find the connector labeled SC06(Short Connecto...	View
	1992 Lexus ES300 3.0L Surge VIN: JT8VK13T0N Customer brought vehicle in for surge while at stop at idle checked vehicle and found fuel pressure regulator leaking removed and found no washer on regulator replaced washer and reinstalled problem still occuring however no check engine light is on and no cod...	View
	2004 Lincoln LS 3.0L Engine VIN: 1LNHM86S24 Today's complaint is noise from under hood. "Sounds like an airplane taking off". Vehicle came in Monday night, noise was not present. Customer brought the car back yesterday. I test drove for about 30 minutes and sure enough, the engine began over-heating and...	View
	2003 Mercedes-Benz C320 4Matic 3.2L blower motor VIN: WDBRF84J73 blower motor stops working aprox 30 sec after car is started, then turns back on 60sec later runs for 30 sec then stops, has power and ground at resistor when it stops working, at times will not work at all	View
	1997 Mercury Villager GS 3.0L No Start VIN: 4M2DV1117V Car was towed in. Customer states that it was running great and all of a sudden it cut out and died and would not restart. No codes stored. Has good spark and injector pulse but no fuel pressure. Checked fuel pump, no power to pump. Found relay not getting gro...	View
	2000 Mercury Grand Marquis GS 4.6L Stall VIN: 2MEFM74W5Y This one is a headscratcher. Sometimes it will go 20 miles no problem. Other times it won't go 3 miles. Sometimes it will buck once before dying,other times it just dies under decel.Usually will start right back up. Did see one time when it would not start imm...	View
	2001 Nissan Pathfinder LE 3.5L Steering VIN: JN8DR09X31 Vehicle has an abrupt and violent shimmy that shakes the entire vehicle left and right between 35 & 45. Comes out of nowhere. Kind of like the older Jeep Cherokee's that had the steering stabilizer (shock absorber) go weak on the steering gear...Ride is smoo...	View
	2004 Saturn Ion-3 2.2L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 1G8AW12F84 I've got a real head scratcher here gang. This vehicle sets a P0700 upon startup. Look in the TCM and there are no codes in on demand. But there are 10 codes in memory. They will not clear, no matter what you do. Same thing with the PCM. It sets the P0700 in o...	View
	1993 Toyota Camry LE 2.2L No Start VIN: 4T1SK12E6P This car was brought to us from another shop. Supposedly their one tech was installing an air filter and afterward it would not start. There was innitially no spark, no fuel pulse. I did some checking on the ignition system before I pulled the code. In that te... Trouble codes: 14 (No Ignition Signal)	View
	2002 Toyota Tacoma DLX 3.4L driver window VIN: 5TEWN72N52 driver window not going up or down, remove door panel and put power directly to the window motor which make the window going up and down.also test for power when hit the up/down switch, no power present. I assumed it the window master switch. replace with a ne...	View
	1985 Volkswagen Vanagon GL 1.9L No Start I have a 1985 VW vanagon that was turn into a trike for a customer/friend. The engine, ignition, fuel injection and wiring harness are all orginal to the back half of this vehicle. I have Mitchell Ondemand and Alldata to use for reference, anyhow I have good f...	View
	1983 Volvo 244 DL 2.3L no fuel delivery VIN: YV1AX8823D Appreciate any help I can get, vehicle towed in with cranks but wont start complaint. Initial inspection found has spark but no injector pulses and fuel pump is not being powered up. Vehicle will start on alternate fuel so ignition system is good. Have limited...	View
	2001 Volvo V70 2.4L No Start VIN: YV1SW61R31 I have not been able to duplicate this concern, happens randomly and intermittently. no codes. ohm tested coolant temp sensor=different than specs, replaced sensor=no change. fuel pressure 55psi. customer states long crank time until starts	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2002 Acura TL Type-S 3.2L No Start VIN: 19UUA56882 FOUND WIRES BROKEN UNDER BRAKE BOOSTER. RODENT OF SOME KIND ATE INTO. DONT SEE HOW THIS COULD HAVE HAPPENED OVER NIGHT AS WAS TOLD TO ME. MUST HAVE BEEN REAL HUNGRY.THANKS TO ALL THAT SENT HELP. SOMETIMES I DONT SEE FOREST FOR THE TREES. I STILL HAVE VSA LIGHT...	9
	2000 Buick LeSabre Custom 3.8L Front end VIN: 1G4HP54K9Y I am shocked that as many of you have said this is a common problem and I have never seen this before. It was in fact the left front inner cv joint. We removed the cv shaft and separated the inner joint. It had very little grease in it from the factory and the...	26
	2004 Buick Park Avenue 3.8L Rap VIN: 1G4CW54K04 Thanks for all your help turned out it was the BCM, the timer did not time out the RAP. Thanks Jason	23
	2002 Cadillac Escalade 6.0L abs VIN: 3GYEK63N62 Replies i beleive were on the mark but since there were some other variables and i couldnt guarrentee the results, the used car dealer declined the repair. I beleive most were correct in that it was the switch on the EBCM but was not able to prove it. The swit...	5
	1994 Chevrolet Corvette 5.7L Sys message flashes VIN: 1G1YY22P1R Techs said to have a new Delco battery (yes I already did this) and have a trickle charger on the vehicle if it sets for any time at all. For your information the battery drain is.028mv, normal. Techs advise as normal setting battery deteriation of lower vol... Trouble codes: C081, H81 (Module 1), H72 (Module 9), ERR.	7
	1995 Chevrolet Impala SS 5.7L Misfire VIN: 1G1BL52P7S Well it runs great now. Some suugested a problem with EGR valve. I removed valve & made a block off plate then drove car. Misfire was still there. Ronnie from Ohio & Steve from Illinois got it right. The fix was to use OEM distributor & plug wires. The plugs I...	22
	2003 Chevrolet Tracker 2.0L Valve Noise VIN: 2CNBE13CX3 Thanks for all of the help. I tried running it but it was really loud and decided to go another route. The suggestion to pump the lifter with diesel fuel was the way to go. My students removed the lifters and pumped the air out in power steering fluid (ligh...	6
	2005 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality VIN: 1GCHK23U95 Much appreciation to you all for taking the time to offer assistance. Paul hit this one on the head. MAF turned out to be the cause. After getting it back out on the highway I could not get it to register more than 85% load even under full throttle. I think I ...	10
	2005 Chrysler Town & Country LX 3.3L No Start, I/P Display blank VIN: 2C4GP44R25 Sorry, we were not able to come to a positive fix on this van. Several testing techniques were used as advised and a couple of times we could start and run engine but then we could not communicate with all modules and problem returned.	16
	2002 Dodge Grand Caravan EL 3.3L occasional no start VIN: 1B4GP34302 Sorry for the delay but was waiting for the "all clear" from the customer. I took advice and cleaned the ground under the battery box and cleaned the terminals good. It's been great for a few weeks now. Thanks for all the suggestions and advice.	11
	2006 Dodge Ram 2500 SLT 5.9L Starting VIN: 3D7KR28C76 this one is back to dealer. local dealer told me this module is not programmable and so it was. i even borrowed buddys starmobile factory scan/passthru tool and it didnt have a provision for tipm flash.	12
	1993 Ford Ranger STX 4.0L Hesitation, Cuts out VIN: 1FTDR15X2P Unfortunately we were not able to fix this one, thanks for all the replies, could not find the source of the problem but could get vehicle to act up everytime it was driven. Even after 17years still have a hard time shipping one that we can't fix but checked e...	19
	1993 Ford Taurus GL 3.0L Engine VIN: 1FALP57U3P hello all this one is fixed, it was the IAC module. I was able to use a genaric scan tool (autoxray 5000) and i got live data stream , the info i got was at start up and engine was cold, the IAC was at 4.2% then after a few minutes it went up to 44% to 65% bu...	34
	2000 Ford Mustang 3.8L MIL Lamp on I finally found the problem to the heater circuit on the oxygen sensors. like most of you guys advised me I checked for proper power going to heater circuit. On bank 2 sensor 1 I found good power all the way to the computer but on bank 1 sensor 1 I stopped get...	14
	2001 Ford F-150 King Ranch 5.4L door locks VIN: 1FTRW07L91 I received several replies on this one. Some suggested that the outside key pad could cause this problem, but this truck does not have the keypad. Some suggested water intrusion into the module, but like I origanally posted the module was free from contaminati...	8
	2003 Ford Mustang 3.8L Abs/Trac Module VIN: 1FAFP404X3 I want to say thanks again for all the replys, there was a lot of good advise. As far as the U1043 trouble code, Jay in MI was dead on the money. We pulled the terminals out of the connector and there were 4-5 terminals that were discolored (light black in c...	6
	2004 Ford Focus ZX3 2.3L MIL Lamp on, P0171 VIN: 3FAFP31Z34 The fix, PCV hose, PCV valve, intake gaskets. I want to thank everyone for all your help, I am 100% sure that the car is fixed. I was told by a few that the PCV valve system needs to be checked cold and that’s when I found the vac leak. After it warmed... Trouble codes: P0171 (Lean Condition).	16
	2005 Ford F-550 Super Duty XLT 6.0L high idle VIN: 3D7LS38C65 I could not find the problem, thank you all for the links you have sent, customer needs vehicle and will return it on a later date	8
	2001 GMC W5500 Forward W5R042 4.8L Exhaust brake VIN: J8DE5B1411 We figured out that the exhaust brake module was loosing voltage while driving, After isolting all circuits found Trans control module to be the culprit	2
	2002 GMC Yukon SLE 5.3L no start VIN: 1GKEK13Z92 replaced passlock 3 weeks ago and still starting thanks to everyone for responding.The tip from richard to replace the sensor was just what I was looking for.	7
	2005 Hyundai Tiburon GT 2.7L MIL Lamp on VIN: KMHHN65F75 thanks for help we ck close trottle switch thinking that was cts ect was fine found purge sol sticking open. replaced no more problems	5
	2006 Jaguar S-Type VDP Edition 4.2L MIL Lamp on VIN: SAJWA01B76 ok seems like all is well now. this is what i did smoke tested engine and found leak at the o ring on the oil filler tube. dealer was 4 days out so i got a new oil cap and used the o ring from it to [...] the tube. i also graphed the maf and at wot it maxed a... Trouble codes: P0171, P0174, P050B, P2105.	13
	1989 Mercedes-Benz 300SEL 3.0L alternator VIN: WBCA24E4LA Good news to report. The second alternator is in and working fine. Consistant charge now. Both alternators were Bosch reman 66x with 80 amp output. Thank you Robert, Richard, Randy, and Peter for taking the time to reply to my post. I still dont have an ans...	4
	2004 Mercedes-Benz E320 4Matic 3.2L Misfire VIN: WDBUF82J64 Thanks for all the replies, unfortunately this form does not let me give a 2nd update so I have to close. Here is what I did and what I found. The miss is on cyl #2 & 4 at the same time. I switch plugs, wires coils and injectors on both those cylinders with 2 ... Trouble codes: P2052 (Cyl 4 missfire).	16
	2007 Nissan Xterra X 4.0L MIL Lamp on VIN: 5N1AN08U27 THE ORINGS FROM DEALER THAT GOES ON CAM COVER WERE WRONG TOLD BY ANOTHER DEALER HAVE TO GET COVER TO GET TEFLON SEALS I WAS LOSING OIL PSI ON B1 O RINGS DONT WORK THATNK FOR HELP Trouble codes: P0011 (B1 cam timing perf).	2
	1996 Pontiac Grand Prix GT 3.4L alternator VIN: 1G2WJ52XXT Thank You everyone fot the input.Alot of replys suggested tensioner or belt. I tried a new tensioner and it didn't help.I feel that it is actualy a problem in the alternator. I recomended a alternator from GM to solve the problem.The customer declined this rep...	23
	2004 Porsche Cayenne 3.2L Lighting VIN: WP1AB29PX4 Replaced front Spring sensor, Found Defective and caused the code 24 post install of new sensor car fitted with wrecker headlight with module b (left) and original headlight with 1st new factory module(right) -performed quick scan and cleared all faults -af...	3
	1993 Toyota MR2 Turbo 2.0L Hesitation, Stall, Misfire VIN: JT2SW22N9P Car fixed. Did a compression waveform and found the intake cam 30 degrees retarded. adjusted timing back to spec and sent it on its way.	3
	2007 Toyota Tundra SR5 5.7L blower speed VIN: 5TFRV54197 First, thanks to all that replied. This truck has a climate controller that has the fan speed selector as part of the unit. It is not serviceable seperately. The unit has one small 8 wire or so plug connector at the rear that goes to the a/c control module w...	3
	2008 Toyota RAV4 2.4L MIL Lamp on VIN: JTMBD33V58 well this one is not yet fixed. most replies suggested a leak in the system. i guess i should have been more clear in my original post. fuel tank pressure read -485mmg all the time. i had 5 volts to the pressure sensor but it went away when plugged in. new can... Trouble codes: P0452 (Vapor pressure sensor voltage low).	6
	2006 Volkswagen Jetta TDI 1.9L Hesitation, MIL Lamp on VIN: 3VWST71K96 Thanks all who replied. I have not heard back from the customer (called and left message) so I am not sure if what I did was sucsessful. I removed the EGR valve and cleaned it out. It was carboned up pretty bad. I did not want to invest in a valve sicne I was ... Trouble codes: P0101 (MAF out of range).	19
	1998 Volvo S70 T5 2.3L srs light VIN: YV1LS5375W like everyone said this light needs to be cleared by a scan tool that has the volvo software. i even tried leaving the battery off over night anyway with no success. i made an appointment to take it to the local volvo independent guy on lunch tomorrow.	8
	2002 Volvo S60 2.4L Poor Idle Quality, Surge, Misfire, MIL Lamp on This car is repaired. There were multiple issues affecting the vehicle and we had to dig to find the problems. We replaced the coil packs, plugs, thermostat and went back later and replaced the ECT sensor. -Coil packs due to cracking in the insulation an...	9

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