Automotive Technicians Technical Discussion and Fixes for Jan 7, 2013

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	Help Request	Answers
	2007 Audi A6 Quattro 3.2L Mm1 VIN: WAUKH74F97 Hello Audi Tech's, We have this MMI display that will turn on, but shut off before it makes it to any of the data menu's. Sometimes it will enter the data screen and will go to radio, all works except no sound. The sound button( the four buttons around the mai...	View
	1999 BMW 740iL 4.4L No Start VIN: WBAGH8332X Trying to install used DME. Car came from another shop. The temp sensor shorted and melted pins and connector at DME. The connector was replace and DME was not repairable. A used DME was installed and car vwas brouight to us. DME and EWS would not align, not c...	View
	1992 Buick Park Avenue Ultra 3.8L Abs VIN: 1G4CU5319N Vehicle in question is a 92 Buick Park Avenue Ultra 3.8. Vehicle came in with ABS and Traction off lights. pulled codes 45 and 61 from module. Tested PMV's affected solenoid and all other solenoids. All ohmed out fine. Tested wiring from Ebcm to PMV. Wires vo...	View
	2004 Buick Regal LS 3.8L turn lever VIN: 2G4WB52K64 This problem is something new to this costumer The car will stall after it starts when one puts on the turn signal either left or right.Car will start again when put in park but will stall as soon as turn lever is activated.The battery had a very low charge an...	View
	2004 Cadillac DeVille DTS 4.6L MIL Lamp on VIN: 1G6KF57934 Got this 04 Deville in the shop.Has code p0481 for the fan relay2 circuit that wont go away.Been up to a tranny shop to have the transmission repaired & came back to me now setting this code.Thought maybe it was something they had done.Everything seems to be i... Trouble codes: P0481	View
	2001 Chevrolet Express 2500 5.0L No Start VIN: 1GCFG25M01 hy this van got a no starts problem when is cold outside at -20 it crank but no starts.i have replaced the spark plug the cap the wire and the coil this fall .the fuel pump and the filter were replaced last summer .i have tried to put somme gas in the throttle...	View
	2001 Chevrolet Express 3500 5.7L No Start VIN: 1GBHG31RX1 The truck is a start and stall. Anti theft kicking in. Code p1626 Where is the Passlock Module on this 2001 5.7L Chevy Express 3500 Been told below center of dash. Thats no help. What do i have to remove behind the dash to find it? Have no 12 volt power to the... Trouble codes: P1626	View
	2006 Chevrolet HHR LT 2.2L Stall VIN: 3GNDA23D56 This HHR came in just 2 weeks ago with a bad misfire. Found valve cover gasket leaking oil into spark plug tubes and a bad coil. Replaced plugs, insulators, coil, and valve cover gasket. It ran great but wanted to stall at idle. I cleaned the throttle body wit...	View
	2007 Chevrolet HHR LT 2.4L No Start, no crank VIN: 3GNDA33P87 Vehicle was towed in. Customer has a complaint of no crank, with the key intermittently sticking in the ignition. DTC check showed no communication with the following modules: ECM, TCM, EPS. Found that run/crank relay(#51 in underhood relay center) is not powe... Trouble codes: B1370 (device ignition 1 circuit short to ground)	View
	2008 Chevrolet Trailblazer LT 4.2L Stall VIN: 1GNDT13S28 I need some help here, this trailblazer was towed in with a start, then stall issue. When it showed up, it was a no start, no ground from the ecm to the starter relay. Replaced the ecm, sent it to dealer for flashing, came back with a start, then stall after a... Trouble codes: U1301 (Class 2 communication circuit low voltage), P1630 (Theft learn mode or system volt EPR)	View
	2001 Dodge Ram 1500 ST 5.9L 3-4 shift VIN: 1B7HF13Z11 looking for some clarity one this one. truck came in with a no shift, slipping concern. had gov pressure issues. replaced the gov sol and noticed some diebris on the screen. looked at the iatn fix data base and told cust that it should have a rebuild or reman ...	View
	1998 Ford Taurus SE 3.0L bent valve VIN: 1FAFP57U3W Hi, This car drove in with a flashing check engine light and a p0305 code. There is no compression on cylinder #5 because it's exhaust valve is bent. The valve spring is not broken. There is a circular mark on the piston crown from contact with the valve. It's...	View
	2001 Ford F-250 Super Duty XL 7.3L improper shifting VIN: 1FTNF20F51 Hey guy's, I am not an ace tranny guy and try to avoid them at all cost. This truck belongs to a very good neighbor and I am trying to help him not to get jammed up at a tranny shop. I thought this would be an easy diagnose because the symptoms are there const...	View
	2003 Ford E-350 7.3L No Start, MIL Lamp on, crankcase pressure VIN: 1FDWE35F23 truck came in no start. Battery's weak but would not start. replaced battery's and starter,still will not start but no codes now. there is pressure in crank case wile cranking. there is no mixing of oil in coolant and no coolant in oil. Trouble codes: P1670, P0603	View
	2008 Ford Focus SE 2.0L Hi Pressure VIN: 1FAHP35N28 Started out had to replace the evap core leaking, then compressor was making a noise, replaced with condensor seemed to have a blockage, worked when first started then hi pressure jumped up. Have taken it all back apart, double checked, but can find no blockag...	View
	2008 Ford F-350 Super Duty XL 6.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on 107 k truck, ck engine light was on wont go over 20 mph, 3 codes for throttle body... And 1 code p0351 ignition coil a pri/sec circuit, replace throttle body only the p0351 has come back. Feels like its running on 6 cylds at this point. Also at one point all g... Trouble codes: P0351 (Ignition coil a primary/seconday circuit)	View
	2007 GMC Acadia SLE 3.6L ride VIN: 1GKER13747 Need some help from some gmc techs. The information i posted is for a 2007 acadia. I also have a 2009 acadia with the same problem but not quite as bad. Both have the 3.6 & 6 speed auto. The 09 is all wheel drive. Both of these acadias will have a shake in wh...	View
	2001 Honda Civic GX 1.7L No Start VIN: 1HGEN26491 test drove vehicle & about 3 miles from shop fuel guage began dropping & fuel light started flashing.made it back to shop shut off & fails to start.	View
	2004 Hyundai Santa Fe GLS 3.5L Hesitation, Cuts out, Stall, MIL Lamp on VIN: KM8SC13EX4 I can find little information on these codes. The vehicle is in limp in mode. Throttle does not respond until the pedal is apx halfway down. I can't find any information on our mitchel and could not find anything in the archives. When I backprobe the blue wire... Trouble codes: P2122 (Throttle Pedal Position Sensor D Circuit), P2128 (Throttle Pedal Position Sensor E Circuit)	View
	1999 Jeep Grand Cherokee Laredo 4.0L temp sensor VIN: 1J4GW58SXX Jeep came in with a check engine light on (p1756) and trans started out in 2nd gear. Scan data showed no governor pressure. Diagnosed as bad pressure sensor. We replaced the governor pressure valve and the governor pressure sensor. Test drive and trans shifts ...	View
	2006 Jeep Liberty Sport 2.8L MAF sensor VIN: 1J4GL48546 Hello all, We have Jeep Liberty 2.8CRDI with problems. Customer brought the car with no acceleration and high fuel consumption, and MIL (code P0101, Mass Air Flow Sensor). During test drives we had strange air flow readings: at 3171rpm 136 g/s of air at 100F. ...	View
	2001 Lexus GS300 3.0L Unknown I'm posting this for a fellow shop owner who is having trouble with this Lexus. His mechanic did a complete timing belt/water pump/cam & crank seals job on this straight 6 Lexus. After putting it all back together, it won't start. It will sort of start and run...	View
	1986 Mercedes-Benz 190E 2.3 2.3L radio VIN: WDBDA2409G we have always had to take these to the dealer to have radio recoded with proprietary tool. nearest dealer is 2 hours away one way. does anyone know how this tool works? it is only required on becker gen 2 radios which are all 20 years old or older. who would ...	View
	2002 Mercedes-Benz C320 3.2L fuel gauge VIN: WDBRH64J02 we changed right and left twice now .recoded with auto logic. the gauges starts out at zero and rises to only 3/8 tank and stays there . we did run the gauge tests and the gauges go all the way up and then down. so the gauge works. has anyone seen this before....	View
	2006 Mercedes-Benz ML350 3.5L Misfire VIN: 4JGBB86E16 Hi Guys, This is one for the Benz Tech's as I'm banging my head. Vehicle came in with Balance shaft error codes. Checked timing was off on right bank. Fix balance shaft problem all with new parts the vehicle ran great no codes, smooth all is good. Two weeks la... Trouble codes: P0306 (Misfire Detected 6)	View
	2007 Mercedes-Benz E350 4Matic 3.5L engine VIN: WDBUF87X47 poo15 code cant find diagnos chart	View
	1997 Mercury Grand Marquis GS 4.6L no 2-3 shift VIN: 2MELM74W5V This car has sat for a very long time. It was wrecked but the transmission always worked good. Ive gotten all the codes to go away but one. Its a code P0755.It says shift soleniod B malfuntion. My code help on my scan tool says it could be the MAF sensor or th...	View
	2001 Mitsubishi Montero Sport XLS 3.0L Mechanical VIN: JA4MT31H61 Came in with no reverse and hi miles we sold a used unit and installed.Let me start off when customer came in said was driving on hi way and felt like he ran over something then when he stopped he had no reverse.So we installed a used unit with transfer case d...	View
	1999 Oldsmobile Intrigue GL 3.8L No Start VIN: 1G3WS52K8X Hello everyone, here's one for ya.. This one is a no start. The wierd thing is during cranking it bucks and spits acting exactly like an old 350 would if you stabbed the distributor 180 out. Compression is good and timing chain is lined up with no slack what-s...	View
	1993 Pontiac Grand Am SE 2.3L Surge VIN: 1G2NE5431P Vehicle intermittently has a mid-range (3000-4000 rpm) surge on moderate to hard acceleration. Replaced fuel filter and spark plugs about 2 weeks and 250 miles ago for this concern, plugs were worn and fuel filter was completely plugged. Didn't surge for a few...	View
	1998 Subaru Legacy Outback 2.5L temp light After reinstalling engine after doing head gaskets, P0743 code transmission converter clutch electrical circuit, coming up and trans temp light flashing code 16. To my knowledge no codes present before performing head gaskets. Need a diagnostic procedure for t...	View
	1999 Suzuki Grand Vitara JLX 2.5L No Start VIN: JS3TD62V1X Hey to all, Suzuki came in on the hook with no start, removed plugs and were flooded. Checked spark and intermittanly had spark. Injector pulse was ok all the time. Checked signal of crank and was erratic when signal was good engine seemed like it would want t...	View
	2006 Volkswagen Jetta TDI 1.9L Power Steering Rack VIN: 3VWRT31K56 For you Volkswagen specialists out there...we replaced the battery for intermitantly dropping a cell (original battery). After replacement the amber steering light was on with code for steering angle sensor, we proceeded to test drive for 30+ minutes as per ar...	View
	2012 Volkswagen Passat SE 2.5L CAN Gateway module VIN: 1VWBH7A36C Car was brought to us by a local body shop. Had a bunch of codes stored. Using my VAGCOM, I cleared all the codes and only half returned. Recoded clock spring (steering wheel control module) and adapted steering angle sensor, which further reduced the number o...	View
	2005 Volvo V50 T5 2.5L starter VIN: YV1MJ68235 Towed in for no start, no crank. Ran jumper to starter and it cranked fine. scanned for codes but would not communicate with ECM. We did retrieved codes from the central electronic module. 3F02 Faulty signal from clutch pedal 6C43 Software download 3F01 Clutch...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 Audi TT 1.8L k line short to ground VIN: TRUTC28NX5 Hello this TT is gone an engineer friend of mine helped very smart. He found I was not short to ground. What we were missing was the + voltage on the k line. what we believe is this comes from the gateway in the cluster. Cause after cleaning the cluster connec...	11
	2001 BMW X5 4.4i 4.4L no crank VIN: WBAFB33521 Thanks for the replys guys. Unfortunately I haven't been able to get a hold of this customer to obtain a deposit, so I put the diagnostics on hold, and I'm just running out of time to close the help request. Like some of you suggested ; I did find fuse number ...	18
	2002 Cadillac DeVille 4.6L Accessories VIN: 1G6KD54Y32 Thanks for the help. The wires in the B Pillar were broken. I have never seen this before, but I dont work on a lot of Cadillacs. I was able to splice and solder them back together with the addition of some additional 14awg wire to preserve the original length...	12
	2006 Chevrolet HHR LS 2.2L steering gear motor VIN: 3GNDA13D66 thank you members for all your help. the customer decided to go for the colum replacement,though more expensive,that did solve the problem.dealer will only warranty motor. but the root problem is in the colum.	19
	2007 Chevrolet Express 1500 4.3L No Start VIN: 1GCFG15X77 Thanks to all that responded. I did try to start it on intake cleaner and propane before, it is GM spider style fuel injection so pulse width wasnt checked. I did check the cap and rotor, thought it looked good. A number of you commented to try a new cap and r...	35
	2007 Dodge Sprinter 2500 3.0L MIL Lamp on, Exhaust leak VIN: WD0PE74597 Thank you for the replies. We found two support brackets that were missing bolts on the engine block. The support brackets attach to the new egr tube retainers that were missing during the first repair. I was afraid that the local parts dealer would not cover ... Trouble codes: 2079 (Differential Pressure Sensor Engine Protection Active), P2623 (Charge air system drift at idle), P2626 (DPF soot content too high).	5
	2000 Ford Mustang 3.8L parking lights VIN: 1FAFP4043Y Well after extensive research, testing, and countless peoples help on here,to get me through testing every concievable switch, fuse, and relay I figured it to be a wiring problem. Once I had it locked down to that it was a process to find the two splices. Afte...	20
	2008 Ford Edge SEL 3.5L CD player VIN: 2FMDK48C38 Thanks for the replies. The entertainment system in this vehicle will have to be replaced/repaired but the customer has gone to Florida for the winter. It didn't have the navigation system built into it and there weren't any codes either. The powers and ground...	4
	2010 Ford Expedition Eddie Bauer 5.4L Left temp/blend door actuator VIN: 1FMJU1H52A thanks y'all! Well the simple is NO. This one is on the bottom of heater case. IF the bottom center floor duct would have come off...It would have been possible. Y'all were right about just quit whinin' and get busy. We spent all morning trying to get that b...	4
	2002 GMC Sierra 1500 SL 5.3L battery VIN: 2GTEK19T52 Apparently it was the RAP#1 relay.I allowed the vehicle to sit for 5 days after I replaced the relay,battery did not drain. I then allowed it sit an additional 2 days outside in fridgid cold to see if the cold had an effect. It started without any issues.I shi...	14
	1993 Honda Civic LX 1.5L No Start VIN: 1HGEG8557P Hello all, first I want to thank each one of you for taking the time out to help me. I followed almost everyones advice on this one. Load tested all the yellow/wires from main relay and all grounds with a headlight. All could carry a load with no problem. Ever...	26
	2006 Hyundai Sonata LX 3.3L blower motor Thanks to all who replied to my post. I load tested my power and ground supply wires with a sealed beam headlamp and found poor ground, checked and found ground G19 loose, this ground is below the glove box area bolted to the center support for the dash with ...	8
	2003 Jeep Grand Cherokee Overland 4.7L Fuse #6 VIN: 1J8GW68J53 Thanks for the help. I also posted this in the Technical Theory Forum and Alvaro in Sunny Aruba actually nailed it. The customer had replaced the cylinder head gaskets and got it out of time. Evidently when that happens, the skewed cam signal causes too many c...	9
	2004 Land Rover Discovery S 4.6L Fluid VIN: SALTL19UX4 Had several good suggestions on this beast. Knowing that it was sucking air in from somewhere, we looked very closely at the supply hose and where it is clamped at both ends. The last 2 suggestions seemed to be the most likely, the gasket on the pump body or t...	15
	1998 Lexus GS400 4.0L Front of engine VIN: JT8BH68X7W This turns out to be identical to the one Mike from New Hampshire had. I did pressurize through the oil sending unit hole and it showed nothing. I then reassembled just enough to get it running after thoroughly cleaning the front of the engine. Even then it...	10
	2005 Lincoln Navigator 5.4L Poor Fuel Economy VIN: 5LMFU27575 yhanks evryone for the help. yes it was the oil ptessure too low. so what i done, i got the oil pan out, the oil pump screen was very dirty with carbon so we cleand out the screen put it back and used; 5/20 mc still same noise so we draine out the oil and used... Trouble codes: P0012 (Intake camshaft-over retarder- bank-1).	17
	1998 Saturn SL1 1.9L No Start, Poor Idle Quality, Cuts out, MIL Lamp on VIN: 1G8ZH5289W Sorry about long post. Thanks to all the replies, very helpful info! Vehicle stayed with us for almost 2 weeks, do further testing. We cleared all the codes. we road tested vehicle serveral miles, ran good. As all of you suggusted retested for voltage drops, a... Trouble codes: P0201 (through P0204 Cyl. 1-4 injector circuit problem), P0141 (O2 heater circuit bank 1), P0600 (Serial communication link problem), P1215 (Ground Fault Detect/Quad Driver Output), P0606 (PCM internal processor fault), P1625 (PCM System Reset Or TCM Flash Fault).	11
	2006 Saturn Vue 2.2L clutch master Thanks for all replies,I still want to figure out what this thing does,I did get the car repaired and bleed out with my co-workers vacum bleeder,Thanks	5
	1986 Subaru GL Turbo 1.8L blower motor relay VIN: JF2AF53B7G Thank you for all the replies. As it turned out this vehicle had the bullet style of relay, not the rectangle style that all of the parts houses and ALLDATA gave me. There were too many problems with this car to fix it back to stock. No power to the relay and ...	12
	2003 Subaru Outback H6 3.0L strange noise VIN: 4S3BE89603 As I said, I posted this for another shop. I relayed all the ideas from everybody, hanen't heard if he did anything or not. Most ideas were in line with what I thought was the problem. I told him to join iatn, and he did, so if nothing else I got us a new m...	16
	1996 Toyota Tacoma DLX 2.4L Cuts out, looses power VIN: 4TAVL52N7T First, I want to thank Larry in TX, James in CA, Bismark in CA, Bill in GA, Timothy in Wisconsin, and Timothy in CA. I am unemployed right now because the shop where I worked unexpectedly closed... access to scan tools, lifts and tools other than what I own...	18
	2005 Toyota 4Runner Limited 4.7L engine VIN: JTEBT17R95 I want to thank all of you who posted. At my shop, we see some few of the 4.7's with problems. Like all of you I seconded guessed myself. For this 4runner it will ALWAYS be an OE filter. A very big thank you to all who posted. Chip [...]	5
	2007 Toyota 4Runner SR5 4.0L No Start VIN: JTEBU14RX7 load tested battery. battery passed. I was leaning towards a starter issue also. Unfortunately customer did not authorize anymore diag time. Wished I could have some more time with it. Win some you lose some I guess. Thanks for all of the help.	8
	2000 Volkswagen Beetle GL 2.0L No Start, MIL Lamp on VIN: 3VWBC21CXY After many hours of testing wires and connections I did not find any obvious problems. I felt like I was shooting in the dark with so many in-accurate diagrams and am not a big fan of guessing. After reassembly the voltage drop to ground on the MOT pin was und... Trouble codes: P1225 (Injector cylinder 1 short with ground), P1226 (Injector cylinder 2 short with ground), P1227 (Injector cylinder 3 short with ground), P1228 (Injector cylinder 4 short with ground), P1421 (Secondary air injection solenoid valve short to ground), P1425 (Evap purge valve short to ground).	7
	2003 Volkswagen Jetta TDI 1.9L No Start VIN: 3VWRP69MX3 Well I believe this one is fixed. We checked the pump timing as far as the marks go with the proper tools, and all was good. All we did was change the adaption numbers for the idle, saved the original numbers and went just went a couple digits up, and it has ... Trouble codes: 16502 (Ect out of range).	7

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