Automotive Technicians Technical Discussion and Fixes for Jul 15, 2014

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	Help Request	Answers
	2007 BMW X3 3.0si 3.0L Flapping Noise VIN: WBXPC93407 Hello everyone and thanks for the input on this one. I have this 2007 BMW X3 that came in with an odd "flapping" noise from under the hood when the vehicle is in motion and gets to about 23 mph..it seems to increase as you speed up but its quite constant and o...	View
	2001 Chevrolet Silverado 1500 5.3L knock sensor VIN: 2GCEK19T51 this past Saturday a friend of mine asked me to install two new knock sensors in his 01 Silverado 5.3. knowing that these harnesses fall apart if you cough too hard on them I told him to get that as well. after repair the truck has a intermittent hard start li...	View
	2001 Chevrolet Express 2500 5.7L No Start VIN: 1GCGG25R41 This vehicle has a crank but no start condition. It has good spark and verified timing at distributor cap. Also checked timing with timing light. Good fuel pressure (61psi). Checked injector pulse and fuel injector pressure drop at each injector. Tried removin...	View
	2002 Chevrolet Suburban 1500 LT 5.3L blend door actuator VIN: 1GNFK16Z52 Customer brings in his 2002 Suburban with complaints of it being stuck on full hot. I suspected the blend door actuator, and replaced it. However I did not bolt the new one down. I just plugged it in, and held the actuator up by hand for testing. I'm getting r...	View
	2004 Chevrolet Trailblazer LS 4.2L compressor VIN: 1GNDT13S94 I have no ac clutch engagement,had po530 [pressure switch,installed new dealer part].All pressures are at specs,the ac switch lights up when applied.I can plug relay tester in ac clutch relay with out pluging tester to battery and clutch ingages and cools grea...	View
	2004 Chevrolet Tahoe LS 5.3L Battery VIN: 1GNEK13Z84 This vehicle has a parasitic draw. This first and most easily remedied is the radio, which is drawing about 2 amps at all times. My primary question is this: How long should the BCM be drawing any amount of current? I tend to follow the 50 milliamp maximum...	View
	2005 Chevrolet Silverado 1500 4.8L none VIN: 1GCEC14VX5 found no injector pulse truck will start if carb sprayed in throttle body, fuel press, is 60 psi koeo truck will start sometimes no problem four a minute or two and then dies and it wont start again checked fuses ok,no security codes owner replaced krank senso...	View
	2008 Chevrolet HHR SS 2.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 3GNCA63X98 Customer came in with check engine light on and engine surging only at idle from 700-1000 rpms. Said it was almost dieing at stop lights. I found engine was very noisey, rattles when started. Loud rattles go away in 1-2 minutes. But engine still has some rattl... Trouble codes: P0016 (Ckp to cmp correlation problem), P0089 (Fuel pressure regulator performance)	View
	1988 Dodge D150 5.2L Poor Idle Quality, Surge VIN: 1B7HD14YXJ Customer does his own (light) repair. Has new plugs, wires, cap, rotor. I removed all of them, inspected and regapped plugs to .035, they were at about .020. Verified firing order too. He had us replace his fuel filter the day before I got this truck. After my...	View
	2003 Dodge Ram 2500 5.9L transmission/pcm VIN: 3D7KU28C73 I am not sure what I might have missed, any help would be greatly appreciated.	View
	1987 Ford F-150 Custom 5.0L No Start, Cuts out VIN: 1FTEF14N3H Hello guys so I had this truck in a week or so ago in the for fuel problem. Fix that now customers back trucks back fireing lost of powerran test codes 12.16.25.23.so its hard to start if I pump the gas truck will star and runs ruff this truck has the qireing ... Trouble codes: 12 (16 -), 16 (25 -), 25 (23 -), 23	View
	1999 Ford Escort LX 2.0L MIL Lamp on VIN: 1FAFP10P0X This 2.0 is a split port.It doesn't have A VCT solenoid Im I looking at a bad computer or has some one installed the wrong one. The code comes on as soon as you switch it on.Dont believe engine has been changed. Don't see any wires that would be going to a VCT... Trouble codes: P1380 (Variable Cam Timing Solenoid A Circuit Condition), P0340	View
	2004 Ford Expedition XLT 5.4L Evap Sensor VIN: 1FMPU15L84 The A/C compressor does not engage. Replace the evaporator temperature sensor and it will work fine for few weeks to a few minutes. Replaced the wiring harness from under hood to the sensor itself. This is a retrofit kit that ford used to fix a freezing evapor...	View
	2008 Ford F-450 Super Duty XLT 6.4L A/C compressor VIN: 1FD4X47R68 a/c is inop. Check a/c pressures and it has enough freon to engage a/c. No codes related to a/c operation. I pulled a/c relay out and jumped the terminals to engage a/c manually. A/c compressor engages and works good. Checked power and ground to low current si...	View
	2004 GMC Savana 3500 6.0L Overdrive Sprag VIN: 1GDJG31U14 This truck has come back 2 times since original rebuild. Overdrive sprag is overheating and the sprag is overrunning causing a no reverse and no move in OD condition. We replaced original drum with aftermarket. The reason we changed the drum originally was du...	View
	2004 GMC Sierra 2500 SLE 6.0L Engine VIN: 1GTHK29U74 Greetings. I have this customers 6.0 gas with a vibration. It is very noticeable and customer states it has gotten worse over the past year. At idle in park or neutral it is there and even worse at approx 1000 rpm. It feels almost like a miss but no misfire co...	View
	1993 Honda Accord LX 2.2L srs light VIN: 1HGCB7653P customer failed safety inspection because srs light didn't come on when ignition turned on. found bulb in cluster crushed like someone tried to pull bulb out of socket with pliers and broke it. replaced bulb and srs light stays on. went through the test sequen...	View
	1997 Honda Accord LX 2.2L compressor VIN: 1HGCD5633V This car came in with a locked up ac compressor.After replacing the compressor,drier & expansion valve I charged the ac. I started the car & the compressor would not engage.I tried a new thermostat & relay.Still would not come on.I am lost,help please! Thanks,...	View
	2001 Honda Odyssey EX 3.5L TCS Relay VIN: 2HKRL18681 Costumer brought us the car with ABS, BRAKE, and TCS indicators all on. When scanning the car with HDS there were multiple TCS system DTCs. The codes were cleared and as soon as the car was turned back on all lights came back on. After scanning again the TCS D...	View
	2004 Honda Element EX 2.4L rear brakes drag VIN: 5J6YH27584 replaced brake pads about 3 months ago no problems. last week customer returned complaint left rear brake dragging after 20-30 mins drive. confirmed open bleeder slight pressure wheel turns free. checked caliper piston no problem retracting. replaced both rear...	View
	2004 Honda Civic DX 1.7L No Start VIN: 2HGES16434 Hello,I have determined that this car needs another ecm,my question is ,can I install a used computer on this? Since I have never installed a used computer on this year of honda civic before, Im not sure if is worthwhile to do just because Im trying to help a ...	View
	2003 Hyundai Santa Fe GLS 3.5L No Start VIN: KM8SC73T83 Cranks but no start. Checked for injector pulse - good. Checked for spark - no good. Changed crank sensor - still no spark. Checked spark plugs - worn out and fuel saturated. Changed spark plugs and wires - still no start. Found engine would crank irregularly ...	View
	2005 Land Rover LR3 SE 4.4L Starter VIN: SALAD25475 While driving the door locks will cycle, the climate control drops out, then the radio/nav goes off. The hazard light begin to flash on the outside only. No indicator on the dash. The car will continue to run well and the charging voltage is at 13.95V. If you ...	View
	2001 Lincoln LS 3.0L Hydraulic Coolant Fan VIN: 1LNHM86S31 Vehicle came in for an overheating condition, mostly when driving with the a/c system on... Checked coolant system and found the hydraulic coolant fan motor not producing enough speed and coolant fan wobbel.. Replaced the hydraulic oolant fan & motor assembly ...	View
	2004 Mazda 3 S 2.3L speedometer VIN: JM1BK14314 This is the same Mazda 3 i have been working on, got the used pcm reflashed and 2 keys programmed, never did get the vin # flashed into used pcm, don't know if i didn't do something right or what. My main problem now is no speedometer. Any ideas would be great...	View
	2004 Mercedes-Benz S500 4Matic 5.0L Airbags VIN: WDBNG84J34 SRS light is on, Snap-On scanner shows code 9077 - "VINs in SRS module and EIS module are not identical." Code clears but comes back on right away. I'm not familiar with this system, and neither my scanner nor AllData are shedding any light. Is there anything ...	View
	2004 Mercedes-Benz C230 Kompressor 1.8L Cruise Control VIN: WDBRF40J24 C-class with no cruise control. No Codes. I verified the cruise control switch is operational - Actual values ok in SCM and ME. SCN coded ME & Tried a different set of wheels and tires but still no cruise. EZS is coded to reflect a manual transmission. No othe...	View
	2006 Mercedes-Benz CLS55 AMG 5.5L No Start VIN: WDDDJ76X46 Bad fuel pump relay again. Melted ground wire to pigtail. Has anybody ever replaced wiring harness to fuel pump relays or pigtail?? Any help appreciated! Thanks!	View
	2009 Saab 9-5 2.3t 2.3L Radio VIN: YS3ED49GX9 I'm trying to replace the radio/ cd changer head unit due to cd changer failure. On the older 9.5's I have always reprogrammed the VIN in Dice to the VIN of the donor car to divorce the replacement unit and then reprogram back to the original VIN to marry in t...	View
	2007 Subaru Impreza Outback Sport 2.5L Unknown VIN: JF1GG63627 Hi group now the customer is back with the complain of a vibration in the drive train.which they didn't had before!!! i replaced the whole clutch with new parts from carquest.i could'nt confirm the issue first because i drove not long enough, the vehicle needs...	View
	2003 Toyota Avalon XL 3.0L abs VIN: 4T1BF28BX3 replaced right front wheel speed sensor due to code 31, then replaced right rear due to code 35 scoped other sensors , I tried to clear codes by jumping tc and cg terminals in dlc 3. shows normal code flashing 2 times a second continuously turned off key remov...	View
	2006 Toyota Tacoma 4.0L No Start VIN: 5TELU42N56 Customer complaint was an intermintent no start. It would just crank, and he would turn key off then back on and usually starts. It also sometime dies after you start the truck and put it in gear and start to move then it will die. If you do not turn key off a... Trouble codes: B2799 (engine immobileizer system)	View
	2009 Toyota Camry XLE 2.4L Misfire, MIL Lamp on VIN: 4T1BE46K39 09 camry 2.4 litter,valve job was done to repair valve steam seals[burning oil].Vehicle did not have any problem before repair.We now have code p0300 random cyl. misfire,it feels like tigh valves,all cylinders are affected.This is not a dead miss.cranking comp... Trouble codes: P0300	View
	2011 Toyota RAV4 2.5L MIL Lamp on VIN: 2T3BF4DV5B Hi Toyota techs. i need your help on this one. This rav 4 keeps setting a p0138. customer bought vehicle from auction so i have no other repair history other that customer changed b1s2 before he broughtvehicle to me. the upstream AFS reads pretty steady around... Trouble codes: P0138	View
	1974 Volkswagen Beetle 1.6L Wiring VIN: 1332558666 Thank you in advance for any help with this. I have a 1974 beetle in my bay that the customer hooked a new battery up backwards in. Subsequntly, the wiring going from the rear of the passenger compartment to the engine was melted, with various wires melting to...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 Audi A6 Quattro 3.2L Compressor VIN: WAUDG74F75 THIS ONE IS FIXED. THANKS TO ALL THAT REPLIED. AFTER FINDING OUT THAT THE COMPRESSOR WORKS ON A 12V MODULATED PULSE WIDTH I UNPLUGGED THE COMPRESSOR AND SHOT POWER DIRECTLY TO THE COMPRESSOR WHILE THE CAR WAS RUNNING. THE COMPRESSOR WORKED. PRESSURES WERE GOOD...	4
	2000 BMW 323Ci 2.5L Right Window VIN: WBABM3345Y Thank you to all who took their time to respond to this. Several said window may be binding. This car does not have pressure sensitive reversing function. You can stall all windows with your hand and they will not reverse. Sorry for the child's head. So t...	11
	2006 BMW 525i 3.0L steering lock VIN: WBANE53546 steering lock fixed it. had to do some other stuff with the autologic to get it to come on line but all is now well. thanks for all the replies.	6
	2006 BMW 325i 3.0L water pump VIN: WBAVB13576 Thank you all for the help. Yes I used a BMW Pump and proper coolant. Yes after filling with an air lift and manual venting I ran the venting routine twice. Seems although I cleared the code in fact the code didn't clear. I re cleared the codes and it has come...	4
	1992 Cadillac Seville 4.9L ride control, traction disabled VIN: 1G6KY53B9N Thanks for all the replies.. I was waiting for the car to return so I could hopefully post the fix but it hasnt come back yet. I learned about the IPC override function.. I was going to put the original cluster back in and check the 3 digit code and use the IP...	4
	1995 Chevrolet S10 2.2L no reverse VIN: 1GCCS1447S Evening of July 15 and this is to be closed by July 17. This transmission has given me a lot of trouble,the original problem was no reverse input clutch was out.After a rebuild I put it in all gears without moving it off of lift and all the gears engaged li...	15
	2005 Ford Focus ZX4 2.0L Turn Signals/Brake Lights VIN: 1FAFP34N95 This one is fixed and out the door. As I've mentioned before this business can really humble a person at times. Several replies mentioned checking the fuses first which is what I thought I'd done when the car first came in. Once I started checking for power, e...	11
	1996 Honda Accord LX 2.2L door locks VIN: 1HGCD7231T The door lock actuators were failing but customer declined to have them replaced.	14
	1997 Honda Accord SE 2.2L compression VIN: 1HGCD5605V Thank you to all who offered help. As stated by a majority it was stuck rings. The day I R /R the valve cover gasket it was raining the engine cooled and the rings stuck when it flooded as I attempted to start the car. I squirted a little oil in each cylinder ...	26
	2005 Mercedes-Benz SL500 5.0L Vario Roof VIN: WDBSK75F95 Thank you all for those took their time helping on this post. Received a replacement Vario hydraulic pump from the dealership in a sealed box, all functions works as it was designed including roll bar. And no there were no leaks at all anywhere. Oh and yes the...	9
	1993 Mitsubishi Fuso FH FH100 5.0L brakes well. like all weird problem the solution was simple,after flushing the brake fluid out twice, the problem went away,suggesting that one or more brake lines were getting clogged with residual dirt inside the lines, that is it.thank you again for your help.	4
	2007 Saab 9-3 Aero 2.8L ecm VIN: YS3FH46U97 IT'S FIXED! Ecm fixed it. As you fellow experts said the 06 ecm will not work AND you need to "divorce" the donor ecm. I received two from Goldwing and neither would program due to the donor ecm having newer software. When I tried to SPS the used module it...	6
	2006 Volvo V70 2.4 2.4L blower fan VIN: YV1SW61226 replaced blower motor and controller and performed ccm upgrade. problem no longer present. thank you for the responses.	5

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