Automotive Technicians Technical Discussion and Fixes for May 21, 2013

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	Help Request	Answers
	2004 Acura TL 3.2L ac hose VIN: 19UUA662X4 A/C high side valve leaking...so this maybe a stupid question haha. The core seemed to be a screw core, tryed unscrewing it to replace and it wouldn't come out...if you look real close the valve looks like it may unscrew as an assembly (like some GM/Ford high ...	View
	2004 Audi A8 Quattro L 4.2L access start control module VIN: WAUML44E24 vehicle came to me from another shop. it starts fine but after 20 secionds it shuts off. no codes in the system. I got another key from the customer and tried that first. same result. checking the vehicle i found that the shut off iis being cause by the comput...	View
	2005 BMW 525i 2.5L Air flow VIN: WBANA535X5 Car has auto climate control. Only one blower control for both sides. No airflow on pass side on vent or floor. Does flow out both sides on defrost. These four flap motors with codes are all wired in parallel together. Thinking the dash will have to come out ...	View
	2003 Buick Century Custom 3.1L brakes, abs VIN: 2G4WS52JX3 ok so the deal with this car is when the brakes are applied (e.g. at a light or stop sign) and pedal is released rear tires will intermittently lock up/ not release. Right Rear is the primary fault causing a flat spot, but l.r. will also drag. Looked for a pro...	View
	2006 Buick Rendezvous CXL 3.5L Dual Zone Controls VIN: 3G5DA03L76 We have this Rendezvous that has had an ongoing problem. The dual zone AC will work most of the time but occasionally the drivers side will go to heat with the AC on, the right side works normally. We replaced the left side blend door actuator and the problem ...	View
	2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A25 I have this beautiful piece of craftsmanship ( cadillacs are JUNK! ) anyway I have a P0068 and P1101 that sets as soon as i start the vehicle. I noticed that when you first start the car (after I clear the codes) it does not idle well at all for about 10 secon... Trouble codes: P0068 (Throttle body airflow performance), P1101 (intake air flow system performance)	View
	2007 Cadillac CTS 2.8L No Start VIN: 1G6DM57T17 after car sits for a period of time ie; a few days it has a long crank and does not want to start. no codes found, fuel pressure is around 50 psi. Cranked for about 2 minutes and car finally started up runs fine once started and after shut down fires right bac...	View
	1987 Chevrolet Corvette 5.7L Orifice VIN: 1G1YY2187H It was extremely hard to remove orifice and I resorted to using shop air to literally blow it out of metal tube on evaporator. New orifice seats well before it is all the way into tube and protrudes at least an inch so hose cannot be installed. I have tried af...	View
	1994 Chevrolet Camaro Z28 5.7L Excessive Emissions, Misfire VIN: 2G1FP22P8R Initial complaint was a Misfire at WOT that was only present in 3rd gear after going WOT through 1st and 2nd. Going WOT in 3rd alone showed no misfire. Alternator was replaced following Snap-On troubleshooter that high AC ripple can cause erratic performance....	View
	2002 Chevrolet Tracker 2.0L MIL Lamp on VIN: 2CNBJ13C72 vehicle came in for state insp and oil service, young tech noticed bad brakes, axle, and 2 tires, but failed to realize the MIL lamp did not light in bulb test. aarrrggh! Cut to the chase... mil bulb burned out (how many hrs "on" would that take?) Three codes ... Trouble codes: P0335, P0131 (O2 sensor sig low B1S1), P0442 (Evap Small leak)	View
	2006 Chevrolet Equinox LT 3.4L No Start VIN: 2CNDL73F96 Okay so this customer drop's off there 06 Equinox to us and tells us that it dose not go over 40mph some times and that it dose not always start. I start to check it out and find out that the fuel pump pressure is only 21psi. So I did the fuel pump. Took it fo...	View
	2004 Chrysler Pacifica 3.5L No communicabus line,cluster, wipers,power seats, VIN: 2C8GM684X4 Customer complaint of non operation of instrument cluster, power seats, front wipers, and HVAC. It all started after installing a gps unit into the 16 pin DLC. I have no communication with BCM, skreem module, Instrument cluster, and power seats. I have all pow...	View
	1998 Dodge Dakota SLT 5.2L Misfire VIN: 1B7GG22Y8W Hello everyone and thanks for the help on this little bugger. I have this 1998 Dakota 5.2 giving me fits. The customer brought it in stating that it starting belching and banging up a hill. I got the truck and found a P0307 and a P0300. The engine would belch ...	View
	1999 Dodge Durango SLT 5.9L no spark VIN: 1B4HS28Z0X this truck came in from another shop, wont start, cranks but no spark from coil, have replaced crank sensor, cam sensor, coil, have battery volts at coil and inj,s , injectors will light noid light, have cam sensor and crank sensor signal on snap-on scanner, g...	View
	1999 Dodge Ram 1500 ST 5.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3B7HF13Z3X Truck misfires at idle and decel on no.7 only. Replaced injector to no avail, Compression test at 123 PSI and verified proper valve opening and closing with camera. As truck warms the oil smoke increases and misfire gets worse but goes away under hard accelera... Trouble codes: P0307 (Cylinder 7 Misfire)	View
	2004 Dodge Ram 1500 ST 4.7L engine VIN: 1D7HA18N64 much needed help please truck came from other shop with long crank be for starts and check engine light on has code p0335 crank sensor circuit have checked all parts of circuit can not fine problem have 5v ref have good ground has good sig coming out of crank ...	View
	1965 Ford F-100 Pickup 3.9L coil I need to get it running so I can sell it. There is no license or registration on it. I need to talk to an old ford technician so I can find the VIN number so I can apply for a lost title.	View
	2000 Ford F-250 Super Duty Lariat 7.3L banging VIN: 1FTNX20F4Y power stroke tech HELP!! 2000 f250 7.3 turbo. at cruse speeds or light accel, a gurgling sound starts then a ganging noise like fire crackers going off under the hood. soon as you let off the power a little it goes away. roll back in the gas and it starts agai...	View
	2002 Ford Ranger Edge 3.0L power steering pump VIN: 1FTYR14U52 need some help here i have this truck with a power steering pump is noisey so i replaced the pump with a after market pump and flushed the lines, bleed the system under vacume to make sure all air was out, pump is still noisey so thinking that i have a bad pum...	View
	2002 Ford F-250 Super Duty Lariat 5.4L No Start VIN: 1FTNW21L72 Truck arrived on flatbed no start. Engine cranks but no start.checked fuel press 35#psi koeo.has no injector or coil pulse when cranking. Engine has no codes , we have data with motis. Nothing looks out of the ordinary.every now and then engine will start up a...	View
	2002 Ford F-150 King Ranch 5.4L Convertor? VIN: 1FTRW07L02 Vehicle runs fine and shifts fine, no codes for eng. or trans. Only problem is a driveline "bang" or "clunk" (once) when convertor unlocks, right at the moment of unlock. Does it everytime convertor unlocks IF there is a good hill and/or moderate throttle. No ...	View
	2006 Ford Escape Hybrid 2.3L Starting VIN: 1FMYU96H76 Code poa05 and p1aod in system checked mec pump not working replaced pump pushed reset for rear battery for charge and installed charger on front battery code p1a0d still in system can not clear car will still not start or crank just a click from relay under d...	View
	2006 Ford Freestyle SE 3.0L Unknown VIN: 1FMZK01156 first time so thanks for any help .Got this car in from a local repair shop.They have replaced the engine ,flywheel and torque converter .It has a noise thats sounds like a broken flywheel witch sounds like it is coming from flywheel, torque area. Sometimes th...	View
	1992 Honda Accord EX 2.2L transmission shift VIN: 1HGCB7679N When started cold shifts good. Then after heated up can see D4 on cluster lit all the time, and shift goes to limp mode back and forth. I can't flash codes and cooling fans will come on with ignition switch off. I just checked shift solenoid pack and (can see ...	View
	2003 Honda Accord EX 3.0L ac compressor relay VIN: 1HGCM66553 The compreesor will come on and the car will cool when the ac relay is jumpered.The scan tool shows that the ac is commanded on. ! The problem is the pcm turns the relay on but the ground is insufficient to enrgize the relay. My led test light flikers green wh...	View
	2002 Jeep Liberty Limited 3.7L suspension VIN: 1J4GL58K32 Customer's concern is one very loud pop noise on slow tight right turns. This jeep makes this noise (driver's side front) once and then again in reverse, but quieter. I followed the TSB instructions for repositioning the skid plate (no improvement). Removed th...	View
	2007 Jeep Liberty Sport 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J4GK48K87 misfire at idle if i give it some gas to raise the idle itthe idle jumps up to 2500 rpm and stays there for at least five seconds before it falls down to where the idle is suposed to be Trouble codes: P0300	View
	2007 Jeep Grand Cherokee Overland 3.0L P0763 3/4 shift solenoid VIN: 1J8HR68M17 Hello everyone and thanks for the help on this mystifying diesel grand cherokee. About every 3 to 4 months, this vehicle will go into limp in mode and set a code P0763 which is an electrical failure in the 3/4 shift circuit(I believe its shift solenoid C). By ...	View
	1969 Lincoln Mark III 7.5L blower motor VIN: 9Y89A89683 The car came into shop with no blower motor operation. The A/C compressor does function through the controls. Located blower motor wires and jumped to 12 volt source. Motor runs fine. Checked all fuses and circuit breakers in and behind glove box. Need a schem...	View
	2003 Nissan Sentra GXE 1.8L Hard start VIN: 3N1CB51D03 I am trying to diagnose this 2003 Sentra with an intermittent no start or actually hard start concern. It will start if cranked long enough. No codes stored, no spark when problem is current. Cannot seem read scan data while cranking as scanner always resets a...	View
	2010 Pontiac G6 2.4L Rotors VIN: 1G2ZA5E06A HELPPPPP!!!.The problem that is causing me to pull out my hair today is this 2010 Pontiac G6.This vehicle belongs to the postal service for whom we do alot of maintance for.We did a brake job about 3000 miles back and has since come back with a very odd and in...	View
	2011 Ram 5500 ST 6.7L Hesitation VIN: 3D6WU7EL5B Problem is the vehicle is very doggy, cannot seem to get to downshift in passing gear. Gutless from take off and cannot clear any codes with any of the aftermarket scanners whatsoever. Is this a programming issue that needs to go to dealership or will codes wo... Trouble codes: P20EE, P207F	View
	1995 Saab 900 SE 2.5L power steering Cust said power steering fluid emptied out while driving. He filled it and drove and it ran out really fast. Got vehicle and found reservior empty. Filled reservior and ran engine, expecting to find a fast leak. no leak found . cleaned off lines and fluid on r...	View
	2009 Volkswagen GTI 2.0L Misfire, MIL Lamp on VIN: WVWEV71K29 Car came in with a Misfire and code for Manifold Flap Position,Replaced Intake Manifold It was physically Broken,Cleaned The carbon on the valves,Replaced no 2 injector,replaced 4 plugs and 4 coils, All VW Original parts, Car has a hard code for misfire no 2 ... Trouble codes: P0302, P130A, P0562, P068A	View
	2007 Volvo XC90 3.2 3.2L L.R Window VIN: YV1CT85567 Hi Volvo Techs. I need some help on this XC90 please: Left rear window inop going up only from DDM. Works ok both ways from left rear door switch. REM FUSE#10 supplies voltage to left rear window switch [12v window going up/down 200mV on #A:1 gn/br cable. #...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2002 BMW X5 3.0i 3.0L Vanos VIN: 5UXFA53552 Thanks for the input, I bought the tool @ German Solutions for about $110. w/shipping. Now just need sometime to re-assemble.	5
	2003 BMW X5 4.4i 4.4L steering wheel radio controls VIN: 5UXFB33543 the bimmer in question here doesn't have radio data on ANY scanner i have available, modis, mastertech, vag, so i'm not sure that would have helped. the fact is, i was getting signals from the left switch (different resistances from different buttons when meas...	4
	2004 BMW 530i 3.0L terminal 15 Thanks guys for all the help!! Everyones input helped put a fresh prospective on the problem. When all was said and done the problem ended up being a faulty key. (mental note: When customer only has one key and the vehicle has a no crank/no start issue, ...cus...	13
	2009 BMW X5 xDrive35d 3.0L MIL Lamp on, VIN: 5UXFF03519 Thank everyone for your help . Sent to dealer for scr adaption reset and or replacement of nox sensor . If I get another like this one I would drive for 50 miles or so to see if it would reset on its own . thanks again everyone Trouble codes: P2201, P207F.	4
	1991 Cadillac DeVille 4.9L relay VIN: 1G6CD53B8M Thanks for all the replies. Special thanks to Jerry from Texas. The idea about moving the airbag wires was the trick. I would never have found the relay to test otherwise. A big thanks to all that recommended the Radio shack route. I measured the resistance se...	24
	2004 Chevrolet SSR 5.3L HVAC case VIN: 1GCES14P44 Well, after finally finding one nut holding the dash brace in, and prying upward, it came loose. I changed the fresh air actuator, and I am on my way back together . Thanks for the replies I did get	2
	2008 Chevrolet Tahoe LTZ 5.3L Hesitation VIN: 1GNFC13038 We returned this vehicle back to the customer upon posting this in a hope that we would be able to follow up using the added information and ideas. The vehicle has ran fine everyday since and made 1 trip over 180 miles. The only thing we can assume is that the... Trouble codes: P0192 (Fuel rail pressure sense low volts).	11
	1998 Dodge Ram 1500 ST 3.9L No Start VIN: 1B7HC16X7W Soon after posting help request, customer chose not to continue with repairs. I did check-out all suggested repairs but did not find problem. Appreciate all who took time to respond. Trouble codes: P1389.	7
	1998 Dodge Grand Caravan SE 3.3L No Start, Stall VIN: 1B4GP44G0W Ok so its been a month and it happened again. As i was getting a meter to check it over it started acting fine. So for not being ready to find it in under a minute I dont know if I will every be able to say this is the problem. My ex had a cluster from the bo...	17
	1997 Ford F-250 Lariat 5.4L Monitors VIN: 2FTFF28L8V We have been unable to get this vehicle through emissiosn due to multiple monitors not running. I was given many suggestions and also referred to the Ford specific information to no avail.Some suggestions included: 1)Check to make sure this is not over 8600# -...	30
	1997 Ford F-250 Lariat 5.8L engine VIN: 1FTHX25H9V Removed ballencer on inspection it was slipping. Thanks	4
	2001 Ford F-150 XL 4.2L ign.,injecto VIN: 1FT2X17281 Thank you for the assistance. It was the CPS. Without having a scope, I pulled the old one off and could see that it was bad for the magnet had rusted all ont. Hitting that pot hole finally finished it! Matt	7
	2001 Ford Focus SE 2.0L convertor VIN: 1FAFP34P51 Replaced the soleniods that relate to TCC no difference. It acts the same when I unplug trans connector. Customer declined further testing at this time	9
	2003 Ford Escape XLS 3.0L ride control VIN: 1FMYU021X3 I hope I fixed this car. With the complete sturt assembly. Time will tell. Thanks to all for the replies.I know if we used just OE equipment we would have less problem but with money now days in smaller towns we could not last long in business. Thanks again fo...	5
	2002 GMC Envoy SLE 4.2L Surge VIN: 1GKDT13S32 Thanks to all that replied. customer not willing to spend the money at this time to replace acuator and flush at this time once i warned him of possible engine failure due to lack of oil changes he plans on trading this one in so watch out around St Louis. Trouble codes: P0014 (Cam accuator problem), P1345 (Cam crk corlation).	4
	2004 GMC Sierra 1500 SLE 5.3L driveshaft VIN: 1GTEK19T34 hello everybody, thank you all for all input with this semi-nightmare. here is my progression of repairs until victory. pulled carrier out-found really really pitted side bearings. replaced them both. no improvement. decided to pull transfer case split it and ...	18
	1991 Honda Civic DX 1.5L Eacv VIN: 2HGED6350M Thanks to everyone who replied. The EACV can not be disassembled but it can be cleaned by soaking in a commercial cleaner. After soaking it for several days I re-installed the EACV with new gaskets and new rubber hoses that conduct hot coolant to the unit. Now...	8
	2004 Infiniti G35 3.5L Poor Idle Quality, MIL Lamp on VIN: JNKCV51F14 Thanks to everyone who replied. After tearing apart the wiring harness, replacing both A/F sensors and smoking the motor countless more times we finally found the fix. The problem ended up being a shorted powersteering pressure switch. We have never seen that ... Trouble codes: P0171 (Bank 1 Fuel injection system too lean).	7
	1996 Jaguar Vanden Plas 4.0L In-car Temperature VIN: SAJKX674XT Well it's time to close this post. It looks like Dallas, Chris and Jason may have had the answer. When checking charge pressures the A/C shop found that they were the same on both sides of the compressor. They recommended a new one with related parts and refr...	8
	2008 Jeep Grand Cherokee Laredo 3.7L Gauges,Radio,Ecm,Hvac,Abs,Air Bag VIN: 1J8GS48K18 SEVERAL OF THE REPLIES INDICATED PROBLEMS WITH THE FUSE MODULES UNDER THE HOOD, I HAVE CHECKED AS MUCH AS POSSIBLE AND SENT THE MODULE OFF FOR CHECKING AND/OR REPAIRS. I WILL POST ANY NEW INFO AS I GET IT	4
	2002 Lexus LS430 4.3L No Start VIN: JTHBN30FX2 When the shop I was checking this for replaced the fuel pump, they were replacing the fuel pump motor and not the whole module assembly. When they installed the pump, there is a plastic insert followed by an o-ring on top of the pump outlet housing. We found ...	8
	1999 Mercedes-Benz E320 3.2L Accessories VIN: WDBJH65F6X Wow, never experience this, it was the right rear door module, took the right rear door panel off & disconnect the module everything is working,,, special thanks to Hans & Mark , You Guys hit it Right on,,,Thanks again	4
	2007 Mercedes-Benz S550 5.5L Battery Light VIN: WDDNG71X77 Through the center display I pulled up the battery voltage..was staying steady at 13.5 while I was driving and then suddenly would drop to 9 then jump to 11 then back to 13. Replaced alternator no more issues. Thank you	9
	2008 Mini Cooper S 1.6L Poor Idle Quality, MIL Lamp on VIN: WMWMF73538 I replaced the valve cover which includes the pcv and saw no change. The timing chain and guides appear ok, and timing looks good. Pulled the intake to check for carbon on the valves. I didn't see much but tried to clean the carbon. We didn't have the prop... Trouble codes: P0300 (p0301-), P0301 (p0302-), P0302 (p0303-), P0303 (p0304-), P0304.	7
	1995 Nissan Sentra 1.6L Excessive Emissions, Poor Fuel Economy VIN: 1N4AB41D1S ok. guys this car was not fixed thank you anyways eric mention co2 high yes co2 has to be higher than other numbers thats normal most of you mention mass that was tested numeruos times and tthere is no changes that indicate mass was making the rich condition ...	16
	2005 Subaru Outback i 2.5L Surge VIN: 4S4BP61C65 Sorry for the delay. I tracked down the original owner and verified the right front hub was replaced when the car was hit. The aftermarket wheel bearing was the cause of the cruise control surging issue. The C0111 code is a different problem related to the c...	9
	2000 Toyota 4Runner SR5 3.4L MIL Lamp on VIN: JT3HN86RXY A huge thank you to everyone who responded! Finally got the customer to drop this 4Runner back off with us for some time. A lot of you recommended OEM knock sensors. We pulled the intake back off, checked reference voltage at the harness, checked great there. ... Trouble codes: P0325, P0330.	10
	2006 Volkswagen Jetta TDI 1.9L no power VIN: 3VWST71K66 Looking at the cam I could see that the #1 cam lobe was well worn but the customer would not believe me that that was the problem, so I did a compression check which showed that #1 was at only 100 psi the rest of the cylinders were between 225 and 325 so at t...	8
	2007 Volkswagen Passat Value Edition 2.0L No Start VIN: WVWLK73C57 We did some more poking around and took out the battery and found some melted wires. We repaired them and then we had communication and the engine ran. Replaced the Cat and the booster hose and it was done. Thanks for the help	8
	2002 Volvo S60 2.4L Ecm VIN: YV1RS61R42 First or all I would like to thank all of you guys out there for your help it was just Awesome This customers financial situation has come into play and put the brakes on the repair so its going somewhere or being sold. I am disappointed I would have liked...	8

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