Automotive Technicians Technical Discussion and Fixes for May 23, 2016

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Open Help Requests for All Makes and Models

	Help Request	Answers
	2012 Acura MDX 3.7L hatch VIN: 2HNYD2H62C Hello I have this hatch that has all the inputs, we can make the rear hatch motor work for about 2 seconds with scanner. This thing will close with fob but it will not open with fob, switch on drivers door or even the rear hatch handle. We have gone into the d...	View
	2010 Audi A5 Quattro 3.2L egr low flow VIN: WAUZZZ8T8A I have a low flow detected error which keeps coming back after a drive. No other errors saved.This is a audi 3.0 tdi diesel engine. This engine has electric EGR valve and a egr cooler which is controlled by a vacuum valve to open and close cooler. We have remo...	View
	2006 Cadillac DTS 4.6L No Start, No Communication wit VIN: 1G6KD57Y56 This car drove in the shop fine for water pump replacement. After we replaced the pump it was a no start no crank.The scanner will not communicate with the ECM, TCM or EBCM. I have checked all power and grounds to all modules and every fuse. Also tried to unpl...	View
	2002 Chevrolet Tahoe LS 5.3L Ride Quality and Safety VIN: 1GNEK13Z02 This Tahoe goes down the highway and all of a sudden The rear of the truck begins a slow roll like it is jumping up and down but in a circular motion. By the way it behaves I thought it would have an obvious problem but I can't see anything wrong .I have felt ...	View
	2006 Chevrolet Monte Carlo LS 3.5L horn VIN: 2G1WJ15KX6 alright the problem is when the horn is pressed the horn comes on and stays on. we believe that the horn relay is sticking but we can not find it, so if anyone can tell where the horn relay is exactly that would be great. thank you	View
	2003 Chrysler PT Cruiser 2.4L MIL Lamp on VIN: 3C4FY48B83 car runs great mil on 172..on scan tool rear o/2 heater circute staying 100 percent fuel tps o/2 sensors map all have been changed fuel press ok st trim -21 lt trim -32 cust changed thermo stat coolant sensor exhaust from the cat back and both o/2's and intake... Trouble codes: P0172	View
	2012 Chrysler 300 Limited 3.6L No start VIN: 2C3CCACG1C Hey iatn members this car towed to my shop because of no start the customer said the battery died because of they forgot interior light on i charge the battery the car start cranking but not start i hope you guys direct me to diagnose the problem i appreciate ...	View
	2007 Ford F-150 XLT 4.6L Misfire, Poor Fuel Economy VIN: 1FTRX12W07 No accelerate/no power. I have check fuel pressure, spark, injectors are good. In parking step on gas pedal no problem. In drive no power at all.but it runs like misfire	View
	2008 Ford F-250 Super Duty XLT 6.4L No Start VIN: 1FTSW21R28 need all the help I can get, not a diesel guy. the truck will not start, my desired pressure is 4400 psi, actual pressure is 0. found metal flakes in fuel filter on engine. had a code p0088 and a code po191 and found my lift pump to only have 1 psi. replaced l... Trouble codes: P0088, P0191, P2291	View
	2010 Ford Escape XLS 2.5L engine VIN: 1FMCU9C74A This is going to be long, I have this Escape that came to me after Ford garage diagnosed engine miss, needs engine. A shop installed a used engine, they confirmed to me that it had a knock, they said it ran fine afterwards. The customer took it back to them an...	View
	2012 Ford Focus SE 2.0L Excessive Emissions, MIL Lamp on VIN: 1FAHP3F2XC Looked at vehicle about two weeks ago for parts store owners friend. Had about seven codes including small evap leak. It was a Friday afternoon and he couldn't leave it, so I cleared codes and to see what might show up first when he dropped it off a week later... Trouble codes: P0131, P2196 (B1S1 O2 Biased /stuck rich), P0420 (cat), 171 (Bank 1 lean)	View
	1994 GMC Yukon 5.7L Surge, Misfire VIN: 1GKEK18K7R I have replaced ignition wires and fuel pump/filter.All other parts done by other shops.This is my truck just bought.Replaced fuel pump just because wires were laying on exhaust replaced wire for being burnt.Truck runs good and idles like they all do.The probl...	View
	2004 Honda Accord EX 3.0L no blower op VIN: 1HGCM66524 Original problem was no blower op. The transistor was n/g, I replaced it, still no blower. Checked the wiring to A/C control - ok. I can operate the blower by putting 12v to the blue/yellow wire in the control connector, I also get a feedback signal from the t...	View
	2004 Hyundai XG350 3.5L All backlighting on dash, pass.side running lights VIN: KMHFU45E34 Hello everyone, This one has an electrical ghost somewhere. He won't show his face for my technicians, but will for the customer, which isn't good for business. This Hyundai came in with inoperable passenger side running lights- front and rear- as well as n...	View
	2006 Mini Cooper S 1.6L Clutch system VIN: WMWRH33566 I need to install a new clutch in this vehicle. If it has the DMF flywheel, can a solid system be used? What brands-LUK, Sachs etc... are good ones. Thanks! PS any info or advice on this job would be appreciated. Thanks again.	View
	2007 Pontiac Solstice GXP 2.0L MIL Lamp on VIN: 1G2MG35X47 Vehicle came in for an oil change and tire repair and immediately fell on its face during the first road test. Low power light and service engine light came on immediately. Acts almost like limp in mode. Tested fuel pressure at test port with pressure guage an... Trouble codes: P0087, P0193	View
	1997 Porsche Boxster 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: WP0CA2987V Hello fellow techs. This car came to me on a hook and in pieces. after fixing the vacuum leaks, burning oil because of the breather, OEM spark plugs, replace blown alternator, oil in water due to oil cooler(replaced), new coolant reservoir after coolant flush,... Trouble codes: P0300 (Random misfire), P0301 (misfire 1), P0302 (misfire 2), P0303 (misfire 3)	View
	2008 Saturn Vue XE 3.5L Compressor clutch does not engage VIN: 3GSDL43N98 Hey guys I'm looking over a Saturn Vue for a body shop here. It has the 3.5, and 4 speed auto. Complaint is compressor clutch does not engage. Manually bypassing the relay activates the clutch. Scan data not very helpful: I am able to see from the HVAC module ...	View
	2001 Toyota Tundra Limited 4.7L MIL Lamp on VIN: 5TBRT38101 Hi guys; This truck is driving me crazy. The fuel trims are running high as soon as the engine is warm ( short term 9.2 and 9.8 long term 31.2 and 29.6) and setting lean codes almost instantly. The repair history shows what I've tried with no success.The freez... Trouble codes: P0171, P0174	View
	2002 Toyota Highlander 2.4L MIL Lamp on VIN: JTEGD21A52 Anybody ever run into one like this? Car came in, customer said somebody recently installed an engine and the check engine light came on not too long after. Found P0420 and P0430 stored. Engine looked like it was done professionally. Put on an aftermarket cat ... Trouble codes: P0420 (Bank 1 Catalyst Efficiency), P0430 (Bank 2 Catalyst Efficiency)	View
	1999 Volvo V70 2.4L Poor Idle Quality, Surge VIN: YV1LW55AXX Customer brought with radiator out. Installed radiator and est light on and Throttle body very noisy. Replaced throttle body with used one. Know I have Codes 532D, Faulty Signal, Throttle internal fault, 913F controller internal fault, 900e control mod interna... Trouble codes: 532D, 903F, 913F, 900E	View
	2008 Volvo XC90 3.2 3.2L Dem VIN: YV4CZ98258 This vehicle has 1A64 code for missing signal to DEM. Also it has wheel bearing type of noise coming from the rear differential or wheel bearing which is very loud. Noise starts at 25ml and completely goes away at 65ml when driving down the road. I wonder if t...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2007 Chevrolet Silverado 3500 Classic LS 6.6L No Start VIN: 1GBJK34D17 Hi guys thanks for all the responses. The #5 injector was obviously returning way more than the other injectors. Replacing the injector solved the issue. Thanks again	8
	2008 Chevrolet Impala LT 3.5L Misfire VIN: 2G1WT58K28 Thanks Everyone For All The Help. Leak Down Test Did Not Show Anything So We Decided To Pull The Upper Intake For Inspection Figuring We Had A Spring Or Lifter Problem. We Found The Intake Cam Lobe On #5 Pitted And The Lobe Had A Chunk Of Metal Broke Off From ... Trouble codes: P0300 (Random Cylinder Misfire).	18
	2010 Dodge Charger SXT 3.5L MIL Lamp on VIN: 2B3CA3CV6A Well one for the books. Got another ecm from dealer. Programmed it. Did the ETC learn after programming and it said it passed. When I cranked it up it had codes for Hi TP1 and TP2 voltage codes. The throttle body had been unplugged before I got there. How did ... Trouble codes: P060E, P0221, P2135.	13
	1994 Ford F-150 XL 4.9L Poor Idle Quality, Surge VIN: 1FTEX15Y2R thanks for all the input guys!! awesome responses! forgot to add some of my test results before, timing was on spec at 10* and did advance to apporx 20* with the spout plugged back in. back pressure was less than 1 at idle and 1.5 at 2500 rpms. PCM was not pul...	13
	2005 Honda Odyssey Touring 3.5L door locks VIN: 5FNRL38815 Thank you very much for the input. I agree the lock actuators are not designed to operate like that. Honda does have problems with those actuators. I found out the original problem was the doors would not lock. They would unlock just fine. Usually that means a...	6
	2008 Honda Civic EX 1.8L Starting VIN: 2HGFG11898 Every reply had the right ideal. The one that fixed it was the replies that said ground at the intake. Not much to say as far as how we found the correct one except by starting there. Thanks, al	18
	2007 Hyundai Sonata GLS 2.4L Mechanical VIN: 5NPET46C67 Well the majority was correct on the cam markings. The Horizontal lines must face each other. Exhaust cam at 3 o'clock, and intake cam at 9 o'clock. The dots on the gears are used for making sure the timing chain is installed correctly. There is another dot on...	7
	1996 Jaguar XJS 2 2 4.0L abs warning light VIN: SAJNX2745T Refered vehicle to a shop with Autologic scanner. Found code for rt/front wheel sensor DTC5148 Replace sensor & all is well. Thanks for all the replies. John	7
	2011 Land Rover LR2 HSE 3.2L rear end/differential VIN: SALFT2BN3B I ordered the differential section from Land Rover, and installed it. The job wasn't very tough, and we reused the torque motor that was part of the system. This rear end uses different fluid in that torque motor and differential.	3
	2005 Mazda 6 S 3.0L MIL Lamp on VIN: 1YVHP84D15 Reinstalled factory intake. STFT went down to 0% while LTFT still at 17-20%. Removed aftermarket MAF and both fuel trims are perfect. Engine must be tuned if one of these intakes is installed and a MAF diffuser is advised. Trouble codes: P2198, P2197.	12
	1982 Mercedes-Benz 380SL 3.8L Poor Idle Quality, Cuts out, Stall, Misfire VIN: WDBBA45A5C First off thanks to everyone for the help , I have to close without a fix , reason being as many suggested I have sent fuel distributor , injectors etc away to be rebuilt/reconditioned , and they said it would be about 3 weeks before I see them back, did check...	14
	2005 Mercedes-Benz C230 Kompressor 1.8L Poor Idle Quality, Surge VIN: WDBRF40J85 I at least concluded that the symptoms only appeared when the Secondary AIR would run after a cold soak which would explain why it only happened during that time and I could shorten the duration by raising the rpms. Used car lot did not want to take a chance ...	8
	2008 Mercedes-Benz C300 4Matic Sport 3.0L Electronic VIN: WDDGF81X58 Amazing respond, I swap the valve body with the conductor plate from the old transmission as most of you said & BINGO that solved the problem, I guess we all learn as we go	6
	2012 Mercedes-Benz CLS63 AMG 5.5L Power Trunk VIN: WDDLJ7EBXC I CHECKED MOTOR FOR TRUNK LID AND MOTOR FOR TRUNK PULL DOWN.THESE WERE GOOD.CHECKED POSITION VOLTAGE WHILE RUNNING TRUNK MOTOR DOWN THIS WAS GOOD.CHECKED CAN SIGNAL WHILE PRESSING TRUNK DOWN BUTTON ON LID,THIS SHOWED ACTIVE.I CHOSE TO REPLACE TRUNK LID CONTROL...	4
	2012 Mitsubishi Galant ES 2.4L Communication VIN: 4A32B2FF3C Ok, this car was a little difficult to chase down. I looked all over and and couldn't really find any issues with this car. The only time it set communication codes was when certain scan tools were plugged into it. I chased down the body joint connector tha... Trouble codes: U1108 (Combination meter time out), U1109 (Etacs time out).	7
	1998 Nissan Pathfinder LE 3.3L No Start, Poor Idle Quality VIN: JN8AR05YXW Thanks for the replies. the suggestions sent were tried, with no problems found. As the temperature outside warmed up, the problem was so short on start up, only a matter of a couple of seconds, the customer has decided to take it home and drive it until it ei...	4
	2002 Nissan Pathfinder SE 3.5L MIL Lamp on VIN: JN8DR09Y12 Hello, sorry it took i while to repost but i was waiting on the customers answer. First of all i want to thank everyone for the time they took to help me on this one. As some of you said i check the timing on the sensor with the oscilloscope and compare it wit... Trouble codes: P1145.	9
	2008 Pontiac Grand Prix 3.8L ignition VIN: 2G2WP55268 thank's guy's for all the help, even though i had rpm & cam sgl's i replaced the crank sensor for the hell of it and car started up and ran. thank you, thank you, thank you.	11
	2011 Ram 2500 Laramie 6.7L Starting VIN: 3D7UT2CL3B Wow... The PCM power supply lit a high beam headlamp but... after tracing the power circuit of the B+ supply to the PCM, I discovered a corroded terminal in the brown connector at the TIPM. Embarassingly enough, the tech missed that when he installed the new T...	6
	2012 Ram 1500 SLT 4.7L MIL Lamp on VIN: 1C6RD7GPXC I messed with this thing off & on for a couple days. When I checked it Friday afternoon it was sealed? seriously, the ball went all the way to the bottom of the evap tester. Upon further inspection I found the vent hose barely attached to the ESIM assembly (V... Trouble codes: P0456 (EVAP Small leak).	14
	2007 Toyota Highlander Hybrid 3.3L Drive-axles VIN: JTEEW21A77 Thanks for all the advice, was hoping the air hammer and prybar would work but could not get the bearing out of the bearing support while on car. Had to unbolt the bearing support from engine then use shop press to get bearing out. I also decided to cut old...	8
	2002 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on VIN: 3VWSB69M32 When I pulled the wires idling one at a time, cyl 4 wire disconnect caused it to run much worse as did cyl 3, and cyl 1. But there was almost no change with cyl 2, the one with low compression. I learned that it is possible for the computer to give a false cyl... Trouble codes: P0300, P0303, P0304.	7
	2004 Volkswagen Jetta GLS 2.0L Right turn signal circuit VIN: 3VWSA69M34 Master Tech verified that the CCM was the 'culprit' causing the vehicle's electrical short; recommended CCM to customer, and the part is on its way. Thanks to all for the feedback - especially Naum (whom gave Team extra confidence that there was no other item...	10

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