Automotive Technicians Technical Discussion and Fixes for Sep 17, 2013

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	Help Request	Answers
	2002 Acura MDX Touring 3.5L Differential VIN: 2HNYD18682 Hello to call Tech's. This vehicle has a very violent bang (Feels like another car hit you from behind)on a slow gradual acceleration from a stop light. It occurs after 25-30 miles of driving and sometimes takes up to 2-3 weeks with customer driving. The follo...	View
	2006 Audi A4 2.0L Poor Idle Quality VIN: WAUDF78EX6 This vehicle came in for a concern of a bad idle vibration. It feels worse at idle but you seem to be able to feel it throughout the RPM range. It is the worst at IDLE and in gear. I found no trouble codes in the system. One thing that I noticed was the flex p...	View
	1987 BMW 325i 2.5L Poor Idle Quality, Surge VIN: WBABB130XH Hello all, I've got this bmw here with a crazy idle issue. I do not have a scan tool to hook up to this car so all my testing is permeative to say it best. Idle ranges from 800-1600 rpm. Feels like vacuum leak but none were found. I jumped tps switch into idle...	View
	1999 BMW 323i 2.5L Compressor VIN: WBABJ7339X after customer jumped car off she noticed the a/c not cooling. also the tach and temp inop. despite the mileage this veh is meticulously maintained by dealer until now. so she takes car to dealer. after 2 hours labor charge they tell her needs ihka and cluster...	View
	2005 BMW X5 4.4i 4.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5UXFB53595 Initially this vehicle came in with misfire under idle and all other driving conditions. Customer said the misfire started during highway drive. Performed all of the above tests and procedures and there is no change. Vehicle will sometimes go into Limp mode ... Trouble codes: P0024 (B Camshaft position timing overadvanced Bank 2), P0021 (A Camshaft position timing overadvanced Bank 1), P0303 (Misfire cyl. 3), P0300 (Random Misfire), P0306 (Misfire cyl.6)	View
	2000 Buick Regal LS 3.8L No Start Car was originally towed in for a no start, found that if gas pedal was pressed would start just had to drive two footed or would stall. first thought was iac, tried tapping no difference, i actually have a gm iac so i installed it except it wouldnt even run w... Trouble codes: P0440	View
	1991 Chevrolet Camaro RS 3.1L No Start, Stall VIN: 1G1FP23T6M This camaro is the 3.1 and it will start up then stall. It has spark. It appeared to be flooding one bank when the plugs were done. The tps, ect scoped out OK. The MAP sensor is reading in spec. Not really sure what else to check.	View
	2007 Chevrolet Avalanche LTZ 5.3L Auto 4wd VIN: 3GNFK12367 costumer complained of a traction control and stabilatrack light coming on while driving. I scanned for codes and did not find any. I drove with the scan tool monitoring transfer case data stream. I noticed that with the switch in AUTO 4WD that it showed it wa...	View
	2000 Chrysler 300M 3.5L Accessories VIN: 2C3HE66G6Y Just a quick question, BCM was replaced. everything works ok but battery still goes dead has been l month since BCM replacement. Parasitic draw is 24 milliamps. The thing that I haven't seen and I just don't know if it's a problem but I can hook up my Modis an...	View
	2002 Chrysler PT Cruiser 2.4L No Start, reset security sys VIN: 3C4FY48B42 we have tried reset procedure that is in owners manual and we also got a used key fob and attempted to program that way. Now we are wondering does this thing need to go to the dealer? or are we missing something in the procedure.. thanks for your help this is...	View
	2003 Chrysler PT Cruiser GT 2.4L MIL Lamp on VIN: 3C8FY78G33 thanks in advance for the help. this pt cruiser turbo continues to baffle me! it sets a p1188 for throttle inlet sensor performance. the turbo works; I have pulled the throttle boot off and checked the impeller. it has no play and spins freely. car does seem l... Trouble codes: P1188	View
	1999 Dodge Ram 3500 Van 5.9L No Start, Cuts out VIN: 2B7KB31Z2X This van came into shop with an occasional stall out when raining, would restart after a few minute wait. When arrived to shop was running, if we sprayed water near coil van would stall out. Test drove and returned van to customer. Van stalled out again and no...	View
	2001 Dodge Durango SLT 4.7L headlites VIN: 1B4HR38N81 when ignition is turned in the on position n headlites r on headlites r blinking real fast,inside dome lite also key buzzer is affected same ,customer complianed while driving at nite also affected drivability as well.this test is w/ engine off and key on.got ...	View
	2005 Dodge Stratus SXT 2.4L No Start, Surge VIN: 1B3EL46X95 Vehicle came in with stripped timing belt and a poor attempt at a head gasket job. Purchased new/used head and sent it out to the machine shop to have it rebuilt. Got a PZEC head by accident so fabricated a block off plate for the air injection port. She ran g... Trouble codes: P0340 (Camshaft sensor fault), P0344 (Camshaft Sensor intermittent)	View
	2005 Ford Escape Limited 3.0L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1FMYU94195 Ok Ford guys, this is my wife's car and I am having the "common" PCM driver problem. It all started about 1 month ago. The PCM quit firing the coils for Cylinders 1 and 2. So i replaced the PCM with a new/aftermarket one from Carquest. I gave the VIN and milea... Trouble codes: P0351 (Ignition Coil A Primary Circuit Fault), P0352 (Ignition Coil B Primary Circuit Fault)	View
	2008 Ford Escape Hybrid 2.3L MIL Lamp on VIN: 1FMCU59H18 Have this Escape hybrid with evap canister damage. What I believe was the canister vent solenoid was completely missing as road debris hit canister. Electrical connector was ripped out. I have a violet wire (power) and red wire (ground), but I can not find wir... Trouble codes: P0446	View
	2008 Honda Accord EX 2.4L vtc actuator VIN: JHMCP26858 this car came in with a rattle on a cold start .so i changed the cam gear/actuator on the intake cam.now im getting a cam correlation code.the car seems to run good but has a throaty sound when accelerating,like it is out of time.removed valve cover and timing...	View
	2001 Infiniti QX4 3.5L ecm VIN: JNRDR07Y11 after inspecting vehicule found ecm burened customer said he drove car to a local firestone for an oil change and a battery replacement customer was told that ecm was burned and needed to be replace but no cause was expalind after that car was towed to us and ...	View
	2000 Isuzu Rodeo LS 3.2L Stall, MIL Lamp on VIN: 4S2CK58W7Y Vehicle came in with "Reduced Power" light and Check engine light on. ohming all the wires from the throttle body to the PCM all seeming to be good 0.5 to 0.7. but the accelerator position sensor the wires ohm is 0.7 to 0.9 most of them, is that normal? since ... Trouble codes: P1125 (electronic throttle control limit performance), P1295 (etc power management), P1515 (Command Actual TPS Correlation)	View
	1990 Jeep Cherokee 4.0L transmission thanks in advance for any help would not be asking if did not need. Thanks to all. Installed new engine for customer, while out clutch was worn, installed new clutch kit including internal slave, had flywheel turned, did not shim? may be an issue? after puttin...	View
	2003 Jeep Liberty Limited 3.7L cooling fan replaced cooling fan and relay. trouble code p1491 returns after test drive. cooling fan turns on/off in bay. never overheats. everything seems to function properly. can command fan on with scanner.	View
	2007 Jeep Compass Limited 2.4L Stall VIN: 1J8FT57W57 Hello everyone and thanks for the advice and help with this one. I have this 2007 Jeep Compass with a 2.4 in that intermittently will stall when the customer is sitting at a stop light. I have not been able to duplicate this concern at all. The vehicle never s...	View
	2002 Lexus IS300 3.0L broken connector VIN: JTHBD19242 We are replacing plugs & wires on this, and disconnected the throttle motor connector, and it disintegrated in the tech's hands. Now we have 4 wires on the harness side which are different color than the 4 wires on the motor side & don't know how to put Humpty...	View
	1984 Mercedes-Benz 380SL 3.8L fuse VIN: WDBBA45A9E can anyone tell me the amp rating of the small fuse in back of a Becker Grand Prix radio. It is a 5mm x 20mm fuse and on one end it says T2D 250V. Or maybe a replacement part #. Thanks	View
	1999 Mercedes-Benz E320 3.2L No Start VIN: WDBJF65H6X We have both keys for the car and they work the door locks remotely as well as with fitted key in fob, the car cranks well, there is no communication with scanner for the engine system there is no power to the fuel pump, there is power to the fuel pump relay, ...	View
	2001 Mercedes-Benz E430 4.3L Controls VIN: WDBJF70J01 Vehicle came in with complaint for no A/C. 01 E430 auto climate control. Control head was completely lighting up all the buttons and indicators and unresponsive. Installed a new control head however the only buttons on the unit that respond are the blower spee...	View
	2006 Nissan Frontier SE 4.0L 1-2 shift VIN: 1N6AD06WX6 Hi. I have a excessively hard 1-2 and 3-2 shift. cooler split and contaminated fluid, trans was over hauled and torque converter replaced. auxiliary cooler flushed. replaced valve body and tcu unit in trans for gear slip. fixed but very hard 1-2 shift remains....	View
	2007 Subaru Legacy GT Limited 2.5L MIL Lamp on VIN: 4S3BL67697 Hello , were having a problem properly diagnosing this vehicle. It came in with the check engine light on and a complaint of a rough run at higher speeds.I pulled a p0011 codefor bank 1 being over advanced. We installed a oil control valve after reading about ... Trouble codes: P0011	View
	2000 Toyota Avalon XL 3.0L Ignition cylinder VIN: 4T1BF28B1Y Hi and Thank You in advance! We have a Avalon that got away from one of our customers.He thought he had the transmission in PARK, since he was able to rotate the ignition key to the LOCK position, and pull the key out. As he was walking away from the car, he w...	View
	2002 Toyota Camry LE 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 4T1BF32KX2 Car starts up and runs a little rough but not terrible. After idle for about a minute runs a little better but not perfect. Car has low power when driving at all times. Do not feel a strong misfire. Sometimes will pop back through intake like running too lean.... Trouble codes: P0171 (Lean Bank 1), P0300 (Multiple misfire), P0301, P0303, P0305	View
	2006 Toyota Tundra SR5 4.7L Headlights VIN: 5TBET34146 First Of All, This Vehicle Has A Rebuilt Title. Don't Know Exactly How Much Damage Was Done To It. Now, Customer Claims That At Times He'll Look Out And The Headlights Will Be On. He Disconnects The Battery And Goes Back To Bed Although I Believe It Has Done I...	View
	2007 Toyota Corolla S 1.8L Front Brake Calipers VIN: 1NXBR32E57 This car came in with the left front brake caliper sticking. Had worn the brake pads and rotor out. We replaced the brake calipers hoses and front rotors on both sides and sent the customer on his way he came back about 2 weeks later and said the front brakes ...	View
	1998 Volkswagen Beetle 2.0L Lean full trim VIN: 3VWBB61C0W mil light is on. code p1128 is coming up, fuel trim running lean, any ideas?	View
	2001 Volkswagen EuroVan MV 2.8L Misfire VIN: WV3AB47011 I hope someone can lend a hand here. I am not too familiar with the VW's. Vehicle came in with the complaint of an intermittent misfire. I ran the vehicle for awhile and I was able to duplicate the problem. P0300 comes up and it seems 1 or 2 cylinders are mi... Trouble codes: P0300	View
	2006 Volvo S40 2.4i 2.4L Excessive Emissions VIN: YV1MS38226 Vehicle came in with a code P0420 Catalytic Efficiency Bank1. looking at Long and Short term fuel trims, found LTFT -10 and STFT around -1 to -0.8 never goes lean. Upon revving engine fuel trims get better and come back closer to 0 on LTFT. Almost like an vacu... Trouble codes: P0420 (Catalytic Efficiency Bank1)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1991 Cadillac Seville 4.9L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1G6KS53B3M Thank you to all who responded. As was suggested, injector failure was the issue. we removed fuse for each injector bank & installed a jumper wire into circuit then monitored amperage draw on each bank w/ amp clamp & lab scope. found one injector on each bank ... Trouble codes: 46 (Right to left bank fuel imbalance).	9
	1997 Chevrolet Camaro 3.8L ac air temp. VIN: 2G1FP22K6V I want to start by thanking everyone who replied to this post. I also wanted to comment on Carters post, I'm fully aware that you're supposed to replace the accumulator when you replace the compressor, however when you constantly get the wrong part and no one ...	14
	2002 Chevrolet Cavalier LS 2.2L Brake line VIN: 1G1JF52412 Tony and Rich gave me the Dorman #. I called the Napa store with the # and they crossed it to their # and 3 hrs later I had the part and it is fixed. I took the old one apart and there are O rings and that is where it leaked. It kind of ooozed out. Craig g...	9
	2008 Chevrolet Silverado 1500 WT 5.3L MIL Lamp on VIN: 2GCEC13068 Thanks to evryone for your replies wich help me to reasure on what needed to b done I was a little confused becaused I had cleaned the throtle body,relearn and app codes would pop up real quick but in fact it was the throtle body doing all this, replaced and i... Trouble codes: P0121, P2138, C0161.	15
	2001 Chrysler Sebring LXi Limited 2.7L battery VIN: 1C3EL65U21 For those of you who suspected the stereo...you were right. During one of the jump starts, we noticed the cd player taking on a mind of it's own. The customer also let it be known that the stereo no longer worked. After checking powers and grounds to the stere...	7
	2004 Dodge Ram 3500 ST 5.9L No Start VIN: 3D7MA48C74 Thanks to everyone who had some input into this problem... I really appreciate all the help. I did go back over my work and it was some tubes that I guess were not seated right on to the injectors. Really thought I did it right the first time...but I guess ...	5
	2010 Ford Fusion Hybrid 2.5L a/c compressor VIN: 3FADP0L30A thank you all for the info that was given especially those whom showed respect how ever before I could have gone any further with this vehicle the customer came by and the vehicle was working fine just like that go figure thanks again my friends	11
	2002 GMC Savana 2500 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GTGG29R62 Found multiple breaks in the IAT harness(4)before i decided to just run an overlay from IAT to PCM. Complete break was over PCM itself before the harness splits off to C1 & C2, one was right at the junction with the main harness off of the maf/iat breakout, an... Trouble codes: P0112 (IAT Ckt low), P0113 (IAT Ckt high), P0300, P0327 (Knock sensor 1 signal short/low), P1111 (IAT Ckt intermittent high), P1112 (IAT low volts intake plenum switch).	4
	2004 GMC Sierra 1500 SLE 5.3L low pedal VIN: 1GTEK19T14 thanks too all .after a better bleeding pedal is great.master is good. plus have purchased mastercool kit .	26
	1991 Honda Civic DX 1.5L Surge VIN: 2HGED6350M Thanks to everyone who replied. There were two problems. As many techs suggested,the idle air control valve was defective and replacing it with a new Honda iacv solved most of the surging problem. The high idle speed was caused by the throttle linkage being to...	19
	1996 Honda Accord LX 2.2L No Start VIN: 1HGCD5530T 19 replies, thanks everyone. Most of you were leaning toward a bad ignition switch or main relay problem as was I. The ignition switch checked out fine, and as I said I had already tried a new relay and distributor. Tim from Wisconsin, Craig from Alabama, and ...	20
	2010 Honda Accord LX 2.4L Mechanical VIN: 1HGCP2F37A Well I recieved many good replies most of which said to replace the right front caliper. I had pulled the boot open and could see it was dry with no sign of fluid. I also recieved a reply about a recall on earlier years for the same concern and the fix was rep...	11
	2000 Jaguar Vanden Plas 4.0L transmission VIN: SAJDA24C9Y Sorry for the delay but a used trans controller fixed this jag.The origional controller was sent out for testing and no problems were found.That incorrect info really cost me alot of hours.Used controller was $50 and no programming necessary.Yes,plug and play ...	10
	2003 Mercedes-Benz C240 2.6L no low psi siginal VIN: WDBRF61J33 After replacing the left sam with a new one from benz,the low side psi readings on the scanner came to life but still no compressor control. When applying power to the compressor system worked well low side readings were very close to each other(scanner/gauge)...	4
	1975 MG MGB MK IV 1.8L clutch Thanks for all the great info. After talking with the customer and telling him around 8 hrs. labor I got the impression he didn't really care about the cost as long as I took care of his baby. Thanks for all tips and tricks after 25 years of turning wrenches I...	25
	2003 Nissan Altima 2.5L MIL Lamp on VIN: 1N4AL11D73 Most responses to our request were right on. There was a ground problem at the engine. Previous repair at another facility left the ground wires for ECM insufficiently tightened. No further problem on subsequent test drives. Thank you all!! Trouble codes: P1574.	6
	2007 Nissan Xterra X 4.0L Starting VIN: 5N1AN08UX7 Hi my best Friends!. I will close this by now, but will update if there is news to share. The Xterra still is in hibernation. Customer is in the middle of decide if will order a new ECM from Nissan, or try to find a ECM + Imobilizer + Keys from a Junkyard. I d...	6
	2007 Nissan Murano SL 3.5L Radio, AC Control and Information Center VIN: JN8AZ08T17 Well, thank you very much to everybody that helped me on this, unfortunately the customer has decided to take it somewhere else to get it fixed, I was waiting for him to come back to me after the fix so I could share that info with everybody, he has not yet re...	6
	2002 Volkswagen Passat GLS 1.8L Hesitation, Surge, Cuts out VIN: WVWPD63B52 The customer decided to pick up the vehicle without a fix stating that he did not want to spend anymore money. Here are some updates. We smoke tested the intake & found a cracked breather (only after the engine was hot--did not show at anyother time)--repaired...	10
	2003 Volkswagen Jetta GLS 2.0L valve body VIN: WVWSK61J03 The valve in question is in fact the pressure regulating valve. While we have had good luck in the past replacing these valve bodies, I think we got to this one too late. The fluid is definitely overheating, to the point of burning the fluid. No one, including...	4
	2002 Volvo S40 1.9L Stall, MIL Lamp on VIN: YV1VS29502 WELL,THE VOLVO STILL SITS HERE BECAUSE THE CUSTOMER DOES NOT HAVE ANY MONEY FOR ME TO CONTINUE.I INFORMED HIM THAT IT PROBABLY HAS BENT VALVES,SO AT THE MINIMUM THE CYLINDER HEAD HAS TO COME OFF TO SEE WHY IT NO LONGER HAS ANY COMPRESSION.I GAVE IT A SHOT AND ... Trouble codes: P0017 (Cam/crank correlation [...]).	21

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