Automotive Technicians Technical Discussion and Fixes for Jul 15, 2015

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	Help Request	Answers
	1993 Chevrolet C1500 Cheyenne 4.3L 1-2 shift VIN: 1GCDC14Z7P 1-2 harsh shift, no other shifting problems except for occasional Driveway shift is harsh Park to Drive, which I think is due to slow reacting IAC valve. Disconnected the Battery and shortyed terminals together at one time and seemed to be ok for three of four...	View
	1998 Chevrolet K1500 Cheyenne 5.7L abs VIN: 1GCEK19R6W This truck makes you think it is not going to stop when you mash the brakes. The pedle goes almost to the floor doenot stop very well. I have been told that is a problem with this truck & can't be fixed i don't beleave that. If you have came across this please...	View
	1999 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire VIN: 1GCEC14W0X Hi Kids This Truck Has Steady Misfire Spark is Good. Tried New Plug no Help. Hear is What I Want Help With. I Went to Check Exhaust Back Pressure. Removed EGR Valve So I Could Test Pressure at EGR Exhaust Port. Whith the Engine Running The Pressure Bounces up ... Trouble codes: P0304, P0305, P0420	View
	2004 Chevrolet Malibu LS 3.5L Service Airbag VIN: 1G1ZT54884 Car came in with draw battery going dead. Found BCM causing fault, replaced BCM and reprogramed VIN and mileage thru gm website, I assume it takes the VIN at that time because when going back into BCM to set it up with tech2 it says locked and I can only choos... Trouble codes: B1001 (option configuration error)	View
	2004 Chevrolet Silverado 1500 5.3L No Start VIN: 2GCEC19T24 I was 100% sure I had this one nailed but here I am asking for HELP! 2004 Silverado w/ 5.3, A/T, 2WD. Towed in for a no crank no start. Symptoms are: when I turn the key to get it started it does not crank over, illumination lights, head lights and car w/ lock...	View
	2005 Chevrolet Impala 3.4L Misfire VIN: 2G1WF52E15 Vehicle came in for timing cover gasket leak. fixed leak but set check engine light for 18x crank sensor. Replaced crank sensor and did crank relearn, found it was broke during gasket repair. Still had the light on. Used scope and checked pattern for crank sen... Trouble codes: P0300	View
	2006 Chevrolet Silverado 1500 LT 4.8L no start VIN: 1GCEK19V06 truck came in with having to turn key on and off few times for it to turn over. Ive tried everything that usually goes wrong u can start it from the relay just fine but if try start with key u have to fool with it few times.	View
	2007 Chevrolet Silverado 1500 LTZ 5.3L Charging VIN: 1GCEK19J17 Hi this truck came in with an intermittent no charge. When first started it charges ok but after it runs a while and warms up the gage will drop to below 13. put a tester on the battery and that also shows below 13, its at about 12.2. with the scan tool hooked...	View
	2011 Chevrolet Cruze LT 1.4L MIL Lamp on VIN: 1G1GP5S91B Fist of all thanks to all who have taken time out to read our request. This car is kicking our butt. Car has code p0299 turbo under boost, we found the wastegate valve sticking in the exhaust manifold replaced with a used one 47k on it. Customer drove for abou... Trouble codes: P0299 (Turbo under boost)	View
	2002 Dodge Dakota SLT 4.7L Engine VIN: 1B7HG48N32 We have a 4.7l Dodge Dakota that came in with a Cyl #4 misfire. Found it to have good spark, fuel and compression. I'm getting to the conclusion that it lost a rocker arm as we've had a very similar issue with this same vehicle in the recent past. The question...	View
	2003 Dodge Ram 2500 5.9L speedometer VIN: 3D7KU28C53 hi the truck came in with the speedometer needle jumping but it's intermittent. i have clean all the ground and the problem was gone. A mounth later it start again, i checked the wiring from the rear speedsensor to the abs it,s good.Then i checked the wiring f...	View
	1994 Ford E-350 Econoline 7.5L Excessive Emissions, Poor Idle Quality, Surge VIN: 1FDKE30G8R was originally a crank no start, no engine light KOEO, no com with ECM, found some burnt ECM main grounds near the battery, repaired them and same result. Check voltage drops and verified ECM is dead. Customer sent it out,t it back and same issue, opened the ...	View
	1997 Ford F-250 7.3L No Start VIN: 1FTHF25F1V I'm stumped. Sorry that this is a little long. This truck came in for what he thought was a rear main seal leak. Truck ran good no starting or driving problems. After inspecting the leaks found the fuel pump was leaking oil and a plug at the rear of the HPOP w...	View
	2001 Ford F-150 King Ranch 5.4L cylinder head VIN: 1FTRW08L01 Im hoping someone else has seen this .The aluminum cylinder head is so badly pitted we cant keep the exhaust gaskets from blowing out is there anything I can do beside replacing the head.Thank you	View
	2004 Ford Expedition Eddie Bauer 5.4L Air Ride VIN: 1FMFU18L14 Hello to all car came in for check air ride system on dash found codes c1725 and suspension was setting low on the drivers side l/f and l/r. R/f and r/r were all the way up found that the air compressor was weak and found that when i was checking the rear heig...	View
	2008 Ford Expedition EL Limited 5.4L Rear Ac VIN: 1FMFK19528 2008 expedition seat a/c and rear a/c stopped working on recent trip neither auto or manual switch will engage rear a/c front works fine. Have checked for noise either for relay clicking or actuator noise synonymous with failure no noise present. Have checked ...	View
	1994 Honda Civic EX 1.6L Lighting VIN: 2HGEJ1127R Strange one here guys/gals, Simple. When pressing the brake pedal, the back light on the radio (just the radio not the dash) will illuminate. If the lights are on there is no difference... but if the lights are off the back light comes on (or the clock displa...	View
	2005 Jeep Wrangler X 4.0L Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 1J4FA39S75 Hi everyone, hopefully one of you Jeep guys have run into this issue before. Vehicle came in with miss/buck jerk, ck engine light on. Checked codes, had codes P0118, P0113, P0339, P0300, and P0306. Cleared codes and test drove, only P0118 and P0113 came back i... Trouble codes: P0113 (Iat sensor high voltage), 00118, P0339 (Crankshaft position sensor), P0300 (Random misfire), P0306 (Cyl. 6 misfire)	View
	2007 Jeep Patriot Limited 2.4L drives the same VIN: 1J8FF28W67 im willing to start from scratch and redo any steps that can help me diagnose this issue better, i have pressure gauges altel maxidas 708, lift, dvom. few other diag equipment	View
	2006 Land Rover LR3 HSE 4.4L Misfire VIN: SALAG25416 Replaced timing chains, tensioners, intake camshaft sprockets for a clunky sound/noise on cold startups. This cured the noise but now i have low compression on bank 2. This vehicle had these faults and others before i replaced timing components. I have all nec... Trouble codes: P0300, P0302, P0304, P0306, P0308	View
	2004 Maserati Spyder Cambiocorsa 4.2L Steering VIN: ZAMBB18A04 We received this car to inspect it for a power steering leak and found rack and pinion is leaking from drivers side. Does any one know how many hours this job pays and is the fluid regular ATF. The boot was full of red fluid but don't know if the customer adde...	View
	1996 Mazda Miata 1.8L loses memory VIN: JM1NA3539T When this car sits it loses the monitors that were previously set. My service information shows terminal 4I on the ECM to be constant battery voltage but it only has power with the key on! I don't find battery voltage at any terminal with the key off. It seems...	View
	2003 Mercedes-Benz C240 2.6L No Start, Stall VIN: WDBRF61J73 We replaced the right fuel pump after the customer had tried and his pump burnt up and melted the connector on left side module. So I rebuilt the connector with MB parts, replaced the left side module that has the hoses and wiring that runs to right side tank ...	View
	2005 Mercedes-Benz E320 CDI 3.2L No Start VIN: WDBJF26J95 replaced 3 crank sensor 2 aftermarket last one factory checked wiring from sensor to ecu seems okay. I am not good with mercedes nor diesel	View
	2013 Mercedes-Benz Sprinter 3500 3.0L Onan Generator VIN: WDAPF4CC9D I followed the flow chart for code 36. Base engine is good Disconnected the auto start no change. Inspected the ckt. board connections good the board is not burned. 120v at the ckt breaker just before engine stalls. Put the switch back together engine started ...	View
	2008 Nissan Armada LE 5.6L ac VIN: 5N1AA08C38 hello everyone customer stated ac does now blow any cold. check and found rear lines leaking I replaced all ac and heater line to rear had two different leak as they come 4 line in set long 12 foot long line one piece. vacuum and recharge ac.does not get cold ...	View
	1966 Plymouth Barracuda 5.2L engine fit hey guys I got this cuda it has a 318 wide engine in it the exhaust manifold on drivers side hits power steering gear box some one shimmed it up so motor doesn't sit straight I don't know if anyone ever even drove it or just gave up been sitting for fifteen ye...	View
	2007 Pontiac G6 2.4L Vents VIN: 1G2ZF58B47 Started out No A/C Replaced compressor ,H valve,and orifice Flushed system Now have perfect A/C Low side 35 High Side 155 My problem is 58 Deg. on Pass Side 80 Deg on Driver side this is single Blend door system Manuel A/C control Im Thinking Problem inside Bo...	View
	1990 Toyota Pickup DLX 3.0L No Start VIN: JT4VN13D2L This truck died while driving on freeway, was towed in. It has fuel but no spark. I have tried one by one replacing the coil, ignitor, mass air meter & distributor. I have key on power to coil but does not pulse. The check engine light is operational, comes on... Trouble codes: 71 (egr fault)	View
	2002 Toyota Sienna LE 3.0L Brake pedal feel This van was brought to me because the front rotors were warped and the pads were worn almost to metal. Also, at near 200,000 miles the rear brakes have NEVER been done and the owner wanted the rear shoes changed. I have done the front brakes multiple times on...	View
	2007 Toyota Avalon XLS 3.5L No Start VIN: 4T1BK36B67 Toyota Techs, Please help!!! One of the techs at my shop put an A/C evap in this vehicle for it leaking. This job required the whole dash to come out. Once reassembled, the vehicle wont start. P2799 is code stored for engine immobilizer system malfunction. I p... Trouble codes: B2799 (engine immobilizer system malfunction)	View
	2010 Toyota Corolla XLE 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2T1BU4EEXA Car came in for ses lite, missing, low power, & poor idle. The only code was p0171 system lean. We replaced intake manifold gaskets for that. While driving the car, lost power and missed badly. Scanner showed only a pending code for misfire #4. It acted like a...	View
	2012 Volkswagen Jetta SE 2.5L No Left Side Running Lights VIN: 3VWDP7AJ9C Att. Gordon no left side running lights. Signals and brake light good	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 BMW Z3 Roadster 2.5L air bag VIN: 4USCH9330X Thanks for the replies , Alan & Mark hit it on the head , took the seats out and about 3inches of water was there both sensor shot , I took the abs module apart to check the pump and found the solder was broken around the pump connection just re soldered it, s...	4
	2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on, no acceleration VIN: 1GNDT13S43 Finally it's fixed. It was the PCM. I done a used one. Thanks to Drew tech and Iatn. I'm thinking of getting the MDI from my GM parts department and a subscription. I see a lot of GM and the pass thru is ok but that's not good enough. I still have the U1000 bu... Trouble codes: U1000, P0113, P0530, P0463, P1275, P1280.	9
	2006 Chevrolet HHR LT 2.2L Cooling Systems VIN: 3GNDA23D06 Guys thanks for the input, I agree that it's prob the head gasket but without being able to rule out a gauge problem I couldn't be certain. After waiting 2 weeks for "more info", we haven't heard back from the customer. I guess he doesn't care, so neither do...	11
	2007 Chevrolet Silverado 1500 Classic LS 4.3L power assist VIN: AGCEC14X87 many thanks. it was the pump. never seen 1 do this in 38 year's ,took the old 1 apart did not see anything wrong. i'v probably only needed pressure gauges 4 times in 38 years to diog. p/s problems, they are too hard too hook up on most cars...	14
	2010 Chevrolet Silverado 3500 HD LT 6.6L 1-2 Shift And Codes PO708 AND 762 VIN: 1GC4K0B62A thank you scott for informing me that the mode switch sad inside the transmission. doug, bill, and ken were right on the money. what was weird about this one was the code would come on just with the key on not running then would disappear. i eliminated the wir...	6
	1998 Dodge Caravan 2.4L Poor Idle Quality, Surge, Misfire VIN: 2B4FP25B6W Coil and spark plug wires fixed it. K.I.S.S Thank you all	8
	1987 Ford F-150 Custom 5.0L Cuts out, Stall VIN: 1FTEX14N9H This one is fixed! I chased the low secondary voltage, had good spark at the coil and at the end of the coil wire. Rotor had a 2 piece contact, there was corrosion between the 2 pieces. Add in major wear on the cap contacts and most of the voltage was lost bef...	26
	1993 Ford E-350 Econoline Club Wagon Custom 5.8L Cooling Systems VIN: 1FBJS31H6P EVERY ONE OF YOU WHERE RIGHT & I THANK YOU. BUT THE CUSTMER DID NOT WON'T ME TO REPAIR IT.	9
	2002 Ford Mustang GT 4.6L left rear VIN: 1FAFP42X92 Customer decided to take vehicle and drive it awhile. When I checked with him, he states that it seems to be better. Later I was told that he went on a 120 mile trip with no problem, so as long as he's happy, I'm happy. I know what the readings were while a...	20
	2007 GMC Yukon Denali 6.2L running boards VIN: 1GKFK63827 Thanks to Howard, Robert and others. My guess is the AAA blew the fuse to both the OBD11 and running boards. Recapping: Could not get system to work. Could work the system with the TECH2 (make boards move up and down) I did reset counters and attempted an in...	5
	1995 Honda Accord EX 2.2L Misfire VIN: 1HGCD5661S Fixed it! Thanks for the help. The EGR ports where carboned up on all but cylinder 1. Feeling for vacuum at the egr valve stumbled me up pretty well.	9
	2009 Honda Pilot EX-L 3.5L MIL Lamp on VIN: 5FNYF48539 The PGM-FI sub relay was the problem, intermittently not closing, this was the common power source for all dtc's received. Thanks everyone for taking time out of your day to assist. Trouble codes: P0135 (O2 heater circuit), P0155 (02 heater circuit), P0141 (O2 heater circuit), P0498 (Evap cvs circuit), P0847 (Tft 2 sensor circuit).	7
	2006 Hyundai Tiburon GT 2.7L Hesitation, Surge VIN: KMHHN65F66 Thank you all for your help. taking your advice I replaced the coil pack and she is running great. It is odd I had no misreading's from my Verus scanner. Either way the customer is happy and I thank iATN for this amazing program.	7
	2009 Jaguar XK 4.2L No Start VIN: SAJWA44B69 Thanks for all replies Jason was on the nail the keys lost it program wile updating the module so we reprogram the keys and all is well that's again every one . Regards Andre [...] .	5
	2008 Land Rover Range Rover Sport HSE 4.4L Starting VIN: SALSK25458 I wish there was a category that says "I might have fixed this vehicle".Thanks to great replies,I was able to narrow my problem to the medium bus circuit,where I did actually only have about 1.5 volts at terminals 3 and 11 with key on.What was throwing me of,t...	6
	1976 Nissan 280Z 2.8L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: HLS3029611 After doing all kinds of repairs (other than this issue) costumer decided not to get too deep into this issue, short on cash. We did spent quite a bit of time trying to correct this issue with no success. I will post more info if costumer decides to bring bac...	8
	2002 Nissan Sentra SE-R 2.5L Key Program VIN: 3N1AB51DX2 Talked this one over with customer and because of tome constraints we decided to replace the ECM and the antenna on the ignition switch and engine started. We originally had lock smith try to reprogram the key but it wouldn't take the program. After we install...	3
	2005 Nissan Maxima SL 3.5L False Mode VIN: 1N4BA41E25 I installed the crankshaft sensor and it worked. I noticed that the RPM's stabilized when i installed the new crankshaft sensor, while with the other crankshaft sensor the RPM's were a bit more jumpy. I also noticed that the code "P0726 Engine Speed Sensor Not...	2
	2004 Saturn Ion-2 2.2L Excessive Emissions VIN: 1G8AM14F84 Thanks for all the advice. I decided to pull the valve cover and check. The timing chain had jumped. I look inside and I can see one of the guide in there broke. The exhaust cam are off. The camshafts had severe scored on it. Talk to the customer and found out... Trouble codes: P0172 (Fuel Trim Too Rich).	23
	1997 Subaru Legacy Outback 2.5L Cooling Systems VIN: 4S3BG6855V Thanx all. First, last time surfaces were pretty clean to begin with, did any scraping with a plastic door panel tool (read about that Subie mirror finish) used 500 and 1000 grit wet with WD40, those were used 3M headight pads, they don't shed grit. Staight ...	15
	2000 Toyota Corolla VE 1.8L Engine VIN: 1NXBR12E3Y Hello All Thank you all for all the great replies. Sorry for the delay, after checking all the replies ., I found that I missed the cooling system and sure enough the radiator was empty, and also the engine got real hot, I had asked the customer when he drop ...	22
	1984 Volkswagen Vanagon Campmobile 1.9L light flashes VIN: WV2ZB0251E So after trying several different things none of which worked I called Go Westy up. They sell a modern circuit board with all the connectors then all I had to do was rewire the main plug and remove the dip switch for the Dynamic Oil Pressure and everything i...	2

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