Automotive Technicians Technical Discussion and Fixes for May 24, 2012

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	Help Request	Answers
	1991 Acura Legend LS 3.2L Starting VIN: JH4KA7678M Please help. This car was towed in with a starting problem.The car will turn over, but will not crank up. I checked for codes to flash but no check engine light will appear in the dash. I ran test, no fuel and no fire. I replaced the main relay under dash left...	View
	2000 Audi S4 2.7L Master Cyl VIN: WAUDD68D2Y Hello techs i have a 2000 audi s4. Came in a month ago with very low brake pedal.found master cylinder faulty.replaced master,3 days later same problem low pedal. Diag.master cyl. Faulty only working on 1 stage again.ok defective cyl.replaced again,now 5 days ...	View
	2002 Audi A6 3.0L acceleration VIN: WAUJT64B72 We replaced CVT transmission with factory reman unit from Audi dealership due to violent shudder/engagement. External filter assembly was replaced and lines flushed. After installation and adaptations performed, original concern no longer present but new condi...	View
	2008 BMW 328i 3.0L Mechanical VIN: WBAVC53598 I have a 2008 328i the right side motor mount bolts have broken. Looks like they need to be drilled out. Has anyone seen this problem before. Any unseen problems drilling out broken bolts on engine side i should be aware of. Thanks all	View
	1999 Cadillac DeVille 4.6L Excessive Emissions, VIN: 1G6KD54Y0X Came in with P0440 and failed emissions, HC. Found stuck closed purge valve and cracked gas cap seal. New gas cap and purge valve, ran Service Bay Test, passed. Found worn plugs and wires. Customer has Autolite Platinum AP104 plugs installed, unknown wires. Fo...	View
	2008 Cadillac CTS 3.6L radio VIN: 1G6DM57798 The car came into my shop with the radio, navigation and lights in the center dash are not working. when it first came in we pulled all the fuses and reinstalled them and everthing started working. customer returned today with the same problem and we checked a...	View
	1994 Chevrolet S10 LS 4.3L Hesitation, Cuts out, Misfire VIN: 1GCDT19W0R Vehicle has poor driveability when cold. At cold idle, there is a slight misfire. When accelerating from a stop, there is almost no reponse from the accelerator pedal until the vehicle speed increases. Engine cuts out and stumbles continuously until cruising s...	View
	1994 Chevrolet Caprice Classic 5.7L Unknown VIN: 1G1BL82P0R I have a good one here guys. Vehicle is loosing voltage anytime there is a draw from power windows to brake lights you name it. Till the point it will eventually stall out. The charging system is putting out 14.2v. I found the 12v wire from the battery to the ...	View
	2000 Chevrolet Silverado 1500 5.3L No Start, Stall VIN: 1GCEK14T2Y Customer states that vehicle starts just fine in the morning, but after engine is warmed up and then engine is turned off and let sit for a while the engine will crank for a long time and not start until he tries again and it eventually starts, runs rough for ...	View
	2006 Chevrolet Impala LT 3.9L No Start, Cuts out, Stall VIN: 2G1WC58166 After replacing starter, drove fine. Suddenly, lost power assist on brakes, hit accelerator died. Wouldn't restart. Towed back. No start. while playing with it it suddenly started. I got it to act up in park once in the bay. I have spark, fuel pressure. No eas...	View
	2008 Chevrolet Aveo LS 1.6L Cuts out, Lacks Accleleration VIN: KL1TD566X8 Thanks in advance for any help you can throw my way. Customer stated car sputters and runs poor at times and has no acceleration when stepping on gas pedal . She shuts vehicle off & restarts then it works okay . Transmission light comes on on dash. We performe... Trouble codes: P0705	View
	1997 Chrysler Town & Country LXi 3.8L Cuts out VIN: 1C4GP64L9V Customer came to shop due to intermittent stall, no codes present, found the knock sensor to be melted, disconnected the sensor and taped (according to TSB given by MODIs). Recommend PCM replacement but unsure if anything else is being overlooked. Affter disc...	View
	2004 Dodge Durango SLT 4.7L Misfire VIN: 1D4HB48N04 misfire underload on cly. 2,4,6,8 check intake gasket clean fuel injectors new plugs also check for headgasket problem. don't know where to go now Trouble codes: P0300	View
	2008 Dodge Ram 3500 SLT 6.7L Charging VIN: 3D7MX49A48 This vehicle came to me from a body shop with the alternator not working. My wiring diagram doesn't show me which wire does what. It's a two wire connector. The red shows a week ground w no voltage and the brown shows 5v assuming VREF. Can someone tell me exac...	View
	1990 Ford Thunderbird Super Coupe 3.8L Flywheel VIN: 1FAPP64R6L I am really just looking for a spec of some nature that will allow me to determine what thickness of flyweel shim should be installed. While he was replacing the slave, he also had the flywheel surfaced and a new clutch. I would rather install the shim now tha...	View
	1994 Ford E-250 Econoline XL 4.9L Unknown VIN: 1FTFE24YXR We acquired this one from a trans shop, it is a no shift.default is third gear. Pcm does not command a shift. anyway, I forget what voltage I should see on the signal return wire for tps, map, trans range sensor etc with respect to engine or battery ground. Th...	View
	1994 Ford Taurus SHO 3.2L Camshaft Synchronizer VIN: 1FALP54P0R I have looked everywhere I can think of. I am trying to locate a camshaft synchronizer for this vehicle because the old one is leaking oil. It is virtually impossible to locate. Does anyone know where I might be able to buy one or have this one re-built? I hav...	View
	2001 Ford Mustang GT 4.6L No Start, VIN: 1FAFP45X41 Ok ford guys what I have here is a 01 gt with a 4.6l 4 valve engine swap done. vehicle ran fine for some time after the swap and started missing then "fixed itself" and back and fourth then got bad. Several dealers have looked at it and seems like everything h...	View
	2002 Ford Focus ZTW 2.0L timing belt idler VIN: 1FAFP36342 There are 2 timing kits available, one for 2 idlers and one for 1 idler pulley. Can I put a single idler pulley kit on a dual idler pulley car? It seems that all the singles have the place for the 2nd pulley, just ford did not put it in. The singles also seem ...	View
	2002 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMZA50462 3-19-12 Check engine light on - Codes P0503-Vehicle speed sensor; P0460-Fuel level sensor; P0174-System too lean - Bank 2. Customer had filled up van and let sit for a couple of days, then drove, then check engine light came on. All speed sensors working fine,... Trouble codes: P0460 (Fuel level sensor A Circut)	View
	2004 Ford F-150 FX4 5.4L Misfire VIN: 1FTPX14524 Ford Techs, This is a weird one. If I clear the code I can power brake this truck all day long without a problem but as soon as I accelerate to 15-17 MPH it bucks and the wrench on the dash come on with code P1106 setting at that point, if I power brake the tr... Trouble codes: P1106 (Reduced power)	View
	2005 Ford F-550 Super Duty XL 6.8L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, No Power VIN: 1FDAF56Y45 Thanks in advance. Ok here it goes, apparently the oil pump went bad. The other shop replaced the pump and left cylinder head (driver side). They also replaced the timing chains too. When we got the truck, it would hardly run, no power and miss firing on cylin...	View
	2008 Ford Edge SE 3.5L low speed driveability VIN: 2FMDK36C08 Hello, the customer says this 2008 Edge SE has a clunk or bump sound/feel when slowing to a stop. I cant reproduce this problem, but the customer is insistent that there is a problem. Dealer did reprogram TSB 08-26-13, but customer says its no better. I cant r...	View
	2008 Ford Focus SE 2.0L Radio VIN: 1FAHP35N98 Powers and grounds are good at Radio(Audio Control Module/ACM) and at Front Control Interface Module (FCIM). Two data wires at FCIM read 2.5 volts with occasional positive spikes on one and occasional negative spikes on the other. There are NO spikes when "On/...	View
	1997 GMC C1500 Sierra SL 5.7L A/C Compressor VIN: 1GTEC19R8V Hi guys, This owner of this truck is a good friend which purchased it without an operating a/c. He brought it to us to repair. The compressor was unplugged, presumably due to it being locked up. The blower switch wouldn't work on high speed. We replaced the ...	View
	2005 GMC Envoy XL SLE 4.2L Poor Idle Quality VIN: 1GKET16S65 This vehicle came in about a week ago (Customer just purchased from a private party about a month ago it did not have this code then) with a P0017 cam and crank correlation error. We replaced the actuator and it came back with the same code. Went threw Mitchel... Trouble codes: P0017 (Cam and Crank correlation error)	View
	2006 Honda Element LX 2.4L engine hey guys, this motor is very noisy on decel while driving and standing still between 2500-3000rpm, remove exhaust no change removed serp belt no change, motor was replace 3000k ago with new one, checked tsb none, teck line no luck, replaced oil pump, gear, low...	View
	2006 Honda Element LX 2.4L engine hey guys, this motor is very noisy on decel while driving and standing still between 2500-3000rpm, remove exhaust no change removed serp belt no change, motor was replace 3000k ago with new one, checked tsb none, teck line no luck, replaced oil pump, gear, low...	View
	2000 Hyundai Accent GL 1.5L Hesitation, MIL Lamp on VIN: KMHCG45G1Y Data stream -[...] int. Air temp. Intermitent -.6mv before & after ho2ss. Yes negative data.is this a plug in &play ecm.	View
	2003 Hyundai Santa Fe GLS 3.5L No Start, Poor Idle Quality, Cuts out, Misfire VIN: KM8SC73E73 We checked this vehicle for spark and originally had spark, but it disappeared quickly after unplugging a plug wire. Now we can't get the spark back. Replace coil and still the same. Originally this vehicle ran but just ran rough. Replaced mass air flow sensor...	View
	2005 Hyundai XG350 3.5L left caliper VIN: KMHFU45E25 This car came in with the left front brakes smoking. Pads were black from heat. We replaced the pads, rotors and left brake hose as it seemed that it was the culpret that caused this side to stick like it did. Now when bleeding no fluid will come out of this s...	View
	2001 Jeep Cherokee Sport 4.0L Cuts out, Stall VIN: 1J4FF48SX1 will intermittantly stall only at idle...doesn't seem to matter if it's hot or cold. One time when it stalled MIL came on and had code p0340-no cam signal at PCM. Tested waveform on both cam and crank sensors and pattern looks good for both of them. One time w... Trouble codes: P0340	View
	2008 Jeep Compass Sport 2.4L Stall VIN: 1J8FF47W68 Vehicle was brought in with a complaint of stalling right after starting and put into gear. This happens backing out of a parking spot or driveway for example. It happens a few times a day. Car runs fine all other times and problem doesnt happen enough to say ...	View
	2006 Kia Optima LX 2.4L blower motor VIN: KNAGD12676 Hey Kia Techs, Not sure which way to go. Hope you might share your time and experience with me. The a/c blower will operate on high only. Attempted to pull codes with modis and manually per mitchell instructions, with no communication and or codes avail. Afte...	View
	1999 Mercedes-Benz SLK230 Kompressor 2.3L MIL Lamp on VIN: WDBKK47F4X Fuel pressure/level sensor replaced previously to pass emissions. Fuel gauge (needle) intermittently will circle counter clockwise to temp gauge and occassionally bounce around. Intermittently low fuel warning light will flash usuakky shortly before check engi... Trouble codes: P0455 (purge control system major leak or voltage supply of fuel pressure sensor), P0460 (Fuel level sensor)	View
	2002 Mitsubishi Eclipse GT 3.0L MIL Lamp on VIN: 4A3AC54H12 Thanks for the help in advance. I've got a Eclipse that has be pulling what is left of my hair out. The P0401 code sets. The egr valve works properly as well as the egr solenoid. On top of the throttle body, there is two vacum ports. One for full vacume and on... Trouble codes: P0401 (EGR Flow Insufficient Detected)	View
	2003 Mitsubishi Galant ES 2.4L mil not on VIN: 4A3AA46GX3 no mil on but codes po335 and po340 are always present. vehicle was taken in for smog test and passed emissions and all functional tests but failed due to codes present in computer. customer bought vehicle two years ago and previous owner had already smogged v...	View
	2003 Mitsubishi Montero XLS 3.8L 1-3 shifts Hi fellow techs, If i can start of by saying that i am not sure of the correct model that you guys call these. Googling images it is similar to the U.S. Montero 4*4. (We calL this the Pajero in Australia). Also my trans is the 5 speed V5A51, not the 4sp as sug...	View
	2000 Nissan Xterra SE 3.3L Cuts out, Misfire this vehicle runs great when the engine is not warmed up. After warm-up...the vehicle cuts out (bucks and jerks) under a load intermittently. The vehicle will idle perfectly; but bucks and jerks when the throttle is opened... Snap throttle in neutral would not...	View
	2001 Nissan Altima GLE 2.4L Cooling System VIN: 1N4DL01A21 Hi, to all nissan and other tech. This car came in with over heating problem , temp. Gauge read less than half ! but temperature is about 205 degree. Cooling fan wasn`t working at this tem. Noticed when we touch the relay fan start working , so we changed the ...	View
	2003 Nissan Altima 2.5L No Start, Poor Idle Quality, Stall VIN: 1N4AL11D43 The problem the customer was experiencing was an engine stall during acceleration. The customer then replaced the fuel pump, vehicle worked for a while, then did the same thing. Also customer replaced the MAF sensor with a reman from kragen because of a code t...	View
	2003 Subaru Forester X 2.5L codePO304 VIN: JF1SG63683 Hi SUBARU Techs need help this car has Code PO304 car runs normal I did compression test all cyls, are in 125+- 10 psi. all spark plugs are new, injector resistance normal specs 5-20 ohms ignition coil resistance normal specs. Freeze Frame Data shows at the ti...	View
	1995 Toyota 4Runner SR5 3.0L No Start VIN: JT3VN39W5S ok guys here is one for youi got this toyota 4runner that came in for no start after checking over found has spark and fuel but i found a few gallons of gas in the oil and plugs very flooded out havent tried to start yet buy wondering if you have ever seen any...	View
	2003 Toyota Tacoma DLX 3.4L MIL Lamp on VIN: 5TEWN72N23 Aloha Techs, quick question, why when I smoke the system in this toyota, the filler neck it supposed to vent at all times? I imagine this is normal since it works with vacuum, not pressure. please someone let me know so I do not buy a Filler neck for no reason... Trouble codes: P0446 (Vent control Fault)	View
	2001 Volkswagen Beetle Sport 1.8L Hesitation, Surge VIN: 3VWED21C71 This Beetle has me stumped. On hard acceleration, in any gear, the engine will fall flat on its face and come to life over and over again. Imagine taking off from a dead stop at WOT and anywhere between 2500 rpm and redline you let off the gas and then floor i...	View
	2001 Volvo C70 2.3L right power seat VIN: YV1NC53D61 Right seat (with memory option) is 100% Inop. With the Volvo ST I am able to communicate with the right PSM and can activate all the motors in the seat. PSM has code for "Control Panel Disconnected" Tried known good panel, tried known good control module. No s...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2000 BMW 323i 2.5L MIL Lamp on VIN: WBAAM3344Y thanks to all that replied repaired intake hose and replaced maf thanks again Jeff ps some of us need to lighten up Trouble codes: P1250, P1189, P1188.	5
	2004 BMW 325i 2.5L Check Engine Light On VIN: WBAET37484 THANKS ALL, WE REPLACED THE VENT VALVE ALONG WITH A COUPLE VENT HOSES. THE CLIENT CALLED AND SAID THE MIL HAS NOT ILLUMINATED SINCE SHE PICKED UP THE VEHICLE. THANKS FOR ALL THE HELP	25
	1998 Chevrolet Corvette 5.7L Cuts out, Stall, Steering lock VIN: 1G1YY22G9W Well we ended up putting in the bypass kit from Corvette of Houston & it fixed it. We believe the replacement relay kit we put in went bad, caused by a defective motor. Just wish we would have done the bypass 1st!. Thanks guys for all the responses. We Learned...	5
	1998 Chevrolet Tahoe 5.7L No Start, Start & Stall VIN: 3GNEK18R9W Thank you to all whom took the time to help me out on this. This truck is repaired. The problem was in the harness to the passlock sensor (the part on the colum). What I found was that the diod on the ground circuit had gone bad. Funny part was that there w...	17
	2000 Chevrolet Suburban 1500 LT 5.3L Excessive Emissions, Misfire VIN: 3GNFK16T6Y Thanks fellow’s for all the help, for the people who ask about the fuel pressure regulator yes we did check that, I just forgot to list it. Thanks for everyone who mention the valve train, I heard a noise coming from the valve train earlier in our diagnoses ... Trouble codes: P0300, P0153, P0154.	19
	2004 Chevrolet Trailblazer LS 4.2L Stall VIN: 1GNDT13SX4 Cleaned the throttle body and we are good to go so far. Thanks for all the help. The owner did not want to address the secondary air pump issue at this time but cleaning the throttle body seems to have stopped it from stalling.	12
	2008 Chevrolet Suburban 1500 LTZ 5.3L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 3GNFK16318 David from Penn hit the nail on the head. NEEDS new cam and crank its at the GM dealer getting fixed for FREE!!! Thank you iATN and the techs that replied. Trouble codes: P0300, P0308, C0561.	10
	1993 Dodge Dakota 3.9L Excessive Emissions, Poor Idle Quality, Stall VIN: 1B7GG26X5P Finally fixed it! There was a vac leak of sorts, the egr transducer diaphram had a small tear which allowed vac flow to egr at all times. this affected map readings which caused excessive fuel eventhough it was already rich. tested egr and it works good. Dorma...	11
	2005 Ford Explorer XLT 4.6L Lt Rear VIN: 1FMDU73W25 This vehicle is fixed. The first 2 new OE sensors sent by the dealer would not train. The part number was rechecked and we found a difference in the last letters. The old sensor ended with BA, while the 2 newer sensors ended in BB even though the box they came...	5
	2007 Ford Edge SEL 3.5L Mechanical VIN: 2FMDK38C77 Sorry guys. I called the dealer and they said the transmission was under warranty so I referred the customer to them. I was apprehensive about tearing into this transmission anyway, so I'm glad it turned out the way it did. Thanks for your suggestions	7
	2007 GMC Sierra 2500 HD SLT 6.0L MIL Lamp on VIN: 1GTHK29K57 well. this vehicle continues to be a nightmare. The customer took the truck (as it is a work truck). The problem pretty much cleared it self up. I can only account this to the change in weather conditions. It is now staing warm here and possibly causing t... Trouble codes: P0575, P0700, P2544, U0101, U0102, U0100.	10
	2003 Honda CR-V LX 2.4L Compressor I subscribed to AllDataDiy and was able to get the correct information I needed to troubleshoot this vehicle. After finding all the correct relay and fuse locations I found in the Underhood Fuse/Relay box a blown fuse for the Condenser Fan which completes the ...	9
	2009 Hummer H3 3.7L under body VIN: 5GTEN13E99 Customer has not returned for service. Thanks to all the techs who replied.	4
	1989 Jaguar XJS 5.3L No Start VIN: SAJNA5844K thanks for everyones help it took me a while to locate a used computor but i did and that solved my problem.thanks again	19
	1999 Mercedes-Benz CLK320 3.2L Key VIN: WDBLK65G0X merc benz techs Thanks for all the help the car This benzo had a weak electro magnet in the ignition assembly So it required the eis and a reprogram from mercedes dealer. That was why the ignition system would always work when a battery booster pack or...	7
	1997 Mercury Sable GS 3.0L transmission/over drive VIN: 1MELM50UXV Hello,Thanks for all the help the car is fixed.The range switch was the the problem. the ecm was telling the car that it was in over drive in park.And drive in over drive.So the range switch fixed it.Thanks for all the help.	11
	2005 Nissan Frontier LE 4.0L MIL Lamp on VIN: 1N6AD07W55 Thanks for all the helpful replies but vehicle is still not fixed. Customer picked up vehicle and will try the relearn procedure by disconnecting the battery for 1/2 hour.We'll see. Trouble codes: P1283 (Air Fuel Ratio Sensor 1 Lean Shift monitoring Bank 2).	13
	2008 Nissan Versa S 1.8L MIL Lamp on VIN: 3N1BC13E58 We installed another used pcm and still had the same problems, the vehicle lacked acceleration and had U code. After researching the VIN, it was found to be from a CVT equipped Versa and we don't have CVT. I finally convinced the SA that we needed to get a NEW... Trouble codes: U1001.	5
	2001 Suzuki Grand Vitara XL-7 2.7L High pressure VIN: JS3TX92VX1 Thank you for all of the replies After reading all of the posts I first blew through all the lines finding no restriction Then I went back to basics and recharged the system My conclusion was I has initially overcharged the system, which is why i had the hi...	11
	2002 Toyota Prius 1.5L No Start VIN: JT2BK12U32 After all replies recieved I can tell for sure that HV battery was severed discharged, I tried to recharge it by charging individuals cells with a 12v batt charger, gave about 15 min each cell geeting at the end of process total volt of 240V, but just by turni... Trouble codes: P3000 (388 When Charged Batt is low due to leave in N to long).	10
	2000 Volkswagen Jetta GLS 2.0L compressor VIN: 3VWSA29M5Y Cycling of the compressor clutch is normal if the circuit has problems like a fried coil.On this car the clutch did nothing so the computer turned it off, then checked the circuit about once per minute which is why the idle speed increased momentarily .I ended...	13
	2008 Volvo S60 2.5T 2.5L Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy VIN: YV1RS59268 Thanks to all that replied with suggestions. Most of what was recommended we had been persuing, even sent to dealer for programming after the PEM was replaced to correct the fuel gage inaccuracy. We are not really sure what the final fix was, but the last two ...	11

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