Automotive Technicians Technical Discussion and Fixes for Oct 21, 2011

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	Help Request	Answers
	2001 Audi TT 1.8L Chutch VIN: TRUTC28N51 Hello fellow IATNers. I have a puzzle here that I am hoping someone has run across before. We have an Audi TT with a turbocharged engine and a manual transmission which presented with a fractured transmission housing. The transmission was replaced with a used ...	View
	2001 Audi Allroad Quattro 2.7L shifting VIN: 1564654653 I installed new turbos on car, road tested vehicle and car ran great and shifted fine, boss drove the car around for a couple days to make sure everything was good.. after the first day the car wouldnt shift into reverse and drive would lag a bit.. so the ligh...	View
	2003 BMW M5 5.0L Poor Idle Quality, Surge, Misfire VIN: WBSDE93403 Have spent numerous hours chasing this problem Trouble codes: P0171 (Alternating from bank to bank during different key cylces), P0175 (Lean on bank 1 rich on bank 2 or rich on bank 1 and lean), P0172 (On bank 2), P0174 (Misfire 0n start up), P0316 (testing and results)	View
	2006 BMW 530i 3.0L volatile memory VIN: WBANE73566 This e60 keeps losing battery voltage. I tested the vehicle extensively, this car has the best (lowest) parasitic draw of any late-model car I have ever seen - 8mA is amazing! The car does go to sleep on its own, and seems to be charging just fine. The DME is ...	View
	2002 Chevrolet Monte Carlo LS 3.4L Stall, No Crank VIN: 2G1WW17E82 No crank, when starter system is bypassed, starts, then stalls. Security light does not flash, can comm w/BCM. When you turn the ignition to start, the cluster warning panel goes blank, and you only hear a click at the fuse block, then 3-4 seconds later it com...	View
	2003 Chevrolet S10 4.3L Heater Core VIN: 1GCDT19X33 Thank you in advance for reading this and trying to help me out. Truck came in 4/15/11 for steam from heater vents which I diagnosed as a failed heater core – it was leaking from the actual core, not the core pipe. Replaced heater core and thermostat (preventa...	View
	2005 Chevrolet Suburban 1500 Z71 5.3L stabilitrac VIN: 3GNFK16ZX5 Please bear with me on this, it's only my second plea for help. Strange problem with the stabilitrac system. The only time this problem presents itself is on normal acceleration from a standing start. at around 7-10 mph both rear sets of ABS valves activate fo...	View
	2006 Chevrolet Malibu LT 3.5L Starting VIN: 2G1WT58K16 hey, guy's & gals have a very intermittant no start. Been everywhere now it's my turn. confirmed no start one ignition cycle. Customer states it happens cold or hot. Turn key to start position, solenoid will click several times, then will engauge starter and e...	View
	2007 Chevrolet Trailblazer 4.2L Mechanical VIN: 1GNET13M07 truck came in smoking and missing ... #6 cyl missing service engine soon lite on and missfire detected # 6 cylinder.. no compression but sucking in the spark plug hole ??? so this tells me the valve isnt opening... remove rocker cover and #6 intake valve isnt ...	View
	1991 Dodge Dakota LE 5.2L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 1B7G123Y5M This is one I usually run from. I didn't realize it was such a mess till we had a couple hours and some parts in it. First, the engine was changed from a V8 to a V6 years ago, so it's a 3.9, and seems to be from 94 and newer. The driveshaft came off and tore u...	View
	1996 Dodge Ram 1500 5.9L Excessive Emissions VIN: 1B7HC16Z8T Customer just had a new exhaust system installed, including a new catalytic converter and two new O2 sensors. Truck runs rich and blows black smoke and soot out the tailpipe if you gun it at idle. Other than that, it runs great. Smooth idle, plenty of power an... Trouble codes: 171 (Lean)	View
	2004 Dodge Intrepid SE 2.7L Pcm VIN: 2B3HD46R34 I swapped a 2.7 engine from a 2002 Dodge Intrepid into a 2004 Dodge Intrepid. - I drove both cars into the garage. Swapped the motor and now it won't start. I started a thread last week and thought that I had it figured it out but nothing I tried worked. Both...	View
	2007 Dodge Charger 2.7L MIL Lamp on VIN: 2B3KA43G67 trying to update pcm with snap on pass thru 2, installed latest drivers and up dates and i keep getting flash files are corrupt please redowneload files.Have tried several times with same message, snap on tech thinks its a problem with chyrs web sight, called ...	View
	1995 Ford Ranger XLT 2.3L Accessories VIN: IFTCR1OA5S Hi all i have this truck that has no wiper operation or washer.they have already put a motor multi switch same problem.now this is what i have done so far i have checked the wires at the ctm and have power on all wires except yellow and white it say if i groun...	View
	2000 Ford F-350 XL 5.4L Mechanical VIN: 1FDWF36F8Y This is a 7.3 diesel not a 5.4. The oil pan is rusted and needs to be replaced. I am looking for replacement advice and or shortcuts that are worthwhile. Thanks in advance for you help. The truck is a manual transmission, rear wheel drive.	View
	2001 Ford F-350 Super Duty Lariat 6.8L MIL Lamp on VIN: 1FTWW33S51 I need a question answered on this super duty, According to the customer this truck has had evap problems for years. I have checked and double checked everything several times. The purge control valve was replaced because it was slow to pull a vacuum on system... Trouble codes: P0455	View
	2004 Ford E-350 Super Duty 6.0L loss of turbo boost VIN: 1FDXE45P24 Just when you think you have seen everything from a 6.0L diesel I found somthing new. When you drive this van at easy throttle the turbo comes on and whistles normally. When you get on it over half throttle you hear a whoosh sound for about 3 seconds and the t... Trouble codes: P2262	View
	2005 Ford F-150 FX4 5.4L harness VIN: 1FTPW14525 can anybody give me times to replace cab harness and frame harness for this truck?	View
	2007 Ford Focus SE 2.0L MIL Lamp on VIN: 1FAFP34N07 Vehicle will start, run, drive normally. Electronic analog speedometer and odometer do not register. Engine running, the following warning lights remain on: air bag, check engine, fuel cap, seat belt, OD off, battery. And Temperature gauge is inoperative. DLC ...	View
	2008 Ford F-250 Super Duty Lariat 6.4L Hesitation, MIL Lamp on customer states vehicle intermitently lacks power and sets check engine light scanning vehicle I found p0088 Fuel Rail Pressure too High When Problem Occurs vehicle goes into limp in mode causing no power tested low fuel pressure system 8 PSI ( in spec ) Perfo... Trouble codes: P0088, P0087	View
	2007 Jeep Compass 2.4L Stall VIN: 1J8FF47W27 Hello all Techs. This is a strange one , I have never ran across this before. This car came in with the complaint of after you fill the car up with gas, you can drive about a mile and it will die on you but it will restart and not have another issue until you ...	View
	2004 Kia Rio 1.6L Hesitation, MIL Lamp on VIN: 1FMZU72K15 Hello kia techs i have 1 that is stumping me .this kia will drive normal if you clear the pcm and start over after driving for 10 minutes the rear 02 sensor starts climbing to .8 and stays there the front looks normal but my fuel trims start heading for the ne... Trouble codes: P0172 (Rich)	View
	2004 Kia Magentis 2.4L alignment specs. VIN: KNAGD12684 Can anyone provide me with the alignment specs for this vehicle.I have tried ALLDATA and Napafix.Nobody seems to have any info on this model.Thanks.	View
	2005 Kia Sorento EX 3.5L No Start, MIL Lamp on VIN: KNDJC73395 Hello Kia pros! This Sorento has an intermittent crank, no start condition. Code P0342 is now set, but not currently a problem. I am familiar with crank sensor issues on these engines, but did not find much info on the cam sensor and this code in particular. W... Trouble codes: P0342 (Cam Sensor A circuit low input B1)	View
	2001 Lexus RX300 3.0L Starting VIN: JTJHF10U91 code B2796. The car is here with 1 key. the customer just bought the truck from a "tote" lot. He only got the 1 key, and it's an aftermarket replica named "platinum". We've driven the car many times in the past week sorting out the maintenance issues, and it r...	View
	2002 Lincoln Town Car Cartier 4.6L Air Suspension VIN: 1LNHM83W82 Hello all. Last week our customer purchased this cream puff from the original owner and brought it in for some light work: coolant flush, thermostat, LOF, Brake fluid flush. We test drove, all went well, noted the suspension compressor fire off at first start ...	View
	2001 Mercury Villager 3.3L Poor Idle Quality VIN: 4M2ZV14T91 High everyone got a weird one here. Vehicle idles A little rough. Checked for vacuum leaks, none found. If I add propane it idles smooth. My problem is the computer is removeing fuel even though the O2 voltage is lean?? If i unplug the O2 sensor the voltage go...	View
	2002 Mercury Sable LS 3.0L No Start, Surge, Cuts out VIN: 1MEFM55S42 hello friends, having a repeat failure of oem fuel pumps on this vehicle. 4 pumps mow in less than 1 year. purchased from dealer. pumps become erratic. low pressure, no pressure. car has a module or driver for the fuel pump. any suggestions about repeat failur...	View
	2000 Nissan Xterra XE 3.3L Poor Idle Quality, Stall, MIL Lamp on VIN: 5N1ED28Y8Y Vehicle came in with rough idle and dies at idle with codes p0131 and p0325. Cleared codes the knock sensor code p0325 returned immediately but not the o2 code p0131. I pulled a plug and found it to be clean and white like it is burning lean and fuel trims are... Trouble codes: P0131 (O2 circuit low voltage b1s1), P0325 (Knock sensor)	View
	2003 Nissan Pathfinder LE 3.5L No Start VIN: JNBDR09Y33 To all Tech, I have a no start condition on a 2003 Nissan Pathfinder. There are no ignition trigger and fuel injection pulse. By backprobing ECU, I was able to see the crank and 2 cam signals with my lab scope. Power source at terminal #109, #119,#120,#121 an...	View
	2003 Pontiac Grand Prix GTP 3.8L Ebcm VIN: 1G2WR52163 Hi Gents, We previously opened a tech help request on the same vehicle for the same affected abs system. i had forgot to mention, that along with the Abs light on and trouble codes CO244 and CO550, there is also the airbag and security lights on. I am unable t...	View
	2004 Saab 9-5 Aero 2.3L Abs VIN: YS3EH59G94 Vehicle came in with ABS,TCS and esp lights on and non op speedometer. Connected Tech 2 scan tool to check codes and got no communication and this is common with a failed abs module. We replaced the module with a used unit and all the lights stayed on. I now h...	View
	2001 Toyota Highlander 2.4L Noise VIN: JTEGD21A11 Once warmed up, this Highlander under light accel, in gear (power brake) maybe 1200 RPM, has a serious rattle. Just like marbles or pre-ignition. We inspected the timing chain and gears, all tight and look good. We located a TSB on other 2.4 2AZ-FE engines in ...	View
	2003 Toyota Matrix XR 1.8L Mechanical VIN: 2T1KR32E53 We installed a long block in a 2003 Toyota Matrix XR [...] with a 1.8L. The vehicle had 121,654 miles. The engine ran okay and had a slight amount of smoke from the exhaust. It came back at 122,695 after 1,041 miles using 4 quarts of oil. We found...	View
	1998 Volkswagen Jetta GL 2.0L No Start VIN: 3VWRA81H5W Vehicle came in no start/cranks. Tried starting fluid, no start. Check for spark, no spark. check ignition coil, ok. Check ECM for codes, P0322, engine speed sensor, no signal. Replaced sensor because it tested bad. Still no start, now I have spark, injector s...	View
	1998 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRF81H2W I am going through the motions of diagnosing a limp in mode due to code 00575 being set. The boost psi is too high for too long. I tapped into the wastegate hose to read the psi - it would read 15+ psi. I suspected a n75 valve problem so i did a little researc... Trouble codes: 00575 (intake manifold psi deviation)	View
	2000 Volkswagen Beetle GL 2.0L Engine VIN: 3VWBS21C41 This beetle came into shop on tow truck it wuldnt start i found 1 plug had backed out so install new plugs and fired right up idels good then when u try to drive it and mash down on throttle it falls on its face just boggs completely down fuel pressure stays a...	View
	2002 Volkswagen Cabrio GLX 2.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 3VWDC21V02 I have replaced MAF with 2 bosch reman 1 new aftermarket and finally with bosch new hasnt fixed issues. flashed computer with vrs 7.0 from dealer as of today still have same problem I have noticed that during my investigation the Throttle position sensor or m... Trouble codes: P0102 (Maf low signal), P0172 (Rich condition)	View
	2007 Volkswagen Beetle 2.5 2.5L Poor Fuel Economy, Low power VIN: 3VWFG31Y07 I took a quick look at this VW Beetle 2.5L. It is low on power and has been getting lower fuel mileage. There are no codes and everything runs well, smoothly, aside from the mentioned issues. I have never worked on European cars and this one is a little weird ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2003 Acura TL 3.2L MIL Lamp on VIN: 19UUA56793 Well thankyou to all that gave me information. Knowing how the old accords would coke up within the manifold i should have known. removed the top plate and the entire passage way was filled carbon, vacuumed it out and cleared out ports as suggested reinstalled... Trouble codes: 001 (egr insufficiant flow detected).	7
	2000 Audi A4 Quattro 1.8L Lag VIN: WAUDC28D9Y Thanks for all the information. I had to call Ross Tech to get all the information on how this turbo system works. It ended up being a cracked hose on the intake that was only leaking pressure, not vacuum. Replaced the hose and retesed. Turbo works all the tim... Trouble codes: 17965 (Charge Pressure Control).	10
	1995 Buick Riviera 3.8L PCM Failure VIN: 1G4GD2216S After receiving many replies we did some tests and could not condemn any parts. Replaced the PCM because this part number is know for its high failure rate. It has been a week and all is well. thanks for the replies! Trouble codes: P0101.	19
	2002 Chevrolet Cavalier 2.2L cooling fans VIN: 1G1JH12F32 Hello, What I love about IATN is that when there is no answer for a question you all come thru. I talked to a friend at a GM dealer who has been at this as long as i have. He confirmed that " yes, the car needs to be driven for the fans to go off" " its an odd...	14
	1994 Dodge Ram 2500 5.9L lock-up VIN: 1B7KF26C4R I am sorry for taking so long but this truck is fixed! I recieved so many great replies full of good ideas. After my update I decided to start over. I didnt have much luck scanning this truck the brick is the only scanner we have to do obd 1 dodge and it has s...	27
	1998 Dodge Avenger 2.5L No Start VIN: 4B3AU42N2X this avenger is fixed i pulled the plugs and put a little transmission fluid down cylinders it bumped compression higher replaced plugs and it cranked right up until compression went low again.so we replaced engine with a used one runs great	20
	2007 Dodge Caliber SXT 2.0L No Start VIN: 1B3HB48B47 Hey guys,thanks for taking the time to help out.We ended up replacing both cam actuator solenoids and all has been good.It seems as though these might be a potential problem coming up as these cars get more miles on them.Even though the customers are very dili... Trouble codes: P2088, P2090.	5
	1997 Ford Explorer Eddie Bauer 4.0L vacuum, brakes VIN: 1FMDU34E3V Replaced with Dealer brake booster, A/M Brake boosters no good. Concluded that engine is worn out.	19
	2002 GMC Envoy XL SLT 4.2L MIL Lamp on VIN: 1GKDT13S42 I'm happy to have finally fixed this vehicle I was able to find a difference in my voltage at my app 1 and app 2 using our modis we saw a supply voltage of 5.03 on app 1 and 7.01 on app 2 since both sould be 5.00 we started checking grounds we concluded that ... Trouble codes: 1271 (app sensor 12 corelation), 1275 (reduced engine power).	7
	2002 Hyundai Santa Fe GLS 2.7L MIL Lamp on VIN: KM8SC13D12 Found yellow wire from solenoid to ecu intermittently dropping out. Ran new overlay harness and test drove 3 times to check for code. This is a three trip code. Trouble codes: P0444.	3
	1989 Jeep Cherokee 4.0L Excessive Emissions VIN: 1J4FJ77L8K Good Friday afternoon to all. The Jeep has been smoged and on it way. Ended up with 2 oxygen sensor being replaced. The first one had reading very similar to original one. Tried the second one and looked like totally different, emissions fell into place and jo...	5
	1998 Lexus ES300 3.0L MIL Lamp on VIN: JT88F28G1W I recheck all the basics over..everything is okay...vacuum leaks...fuel pressure,...ignition...all good...We finally removed the rear 02 sensor connector and found a type of grease in there first thinking it was contamination at first...remember..I checked wit... Trouble codes: P0171 (System running lean).	25
	2007 Subaru Outback 2.5i Basic 2.5L MIL Lamp on VIN: 4S4BP61C27 Thank You to all that replied - it looks as if this car has a bad cat and will go back to the dealer for warranty repair. Thanks again! Trouble codes: P0420 (cat eff. low B1).	7
	2005 Toyota Tacoma 2.7L pulsing..shudder VIN: 5TENX22N85 Thanks for all the replies there was some good info there. unfortunately client took the vehicle the same day as my post and has not returned with vehicle for further testing. so I will have close as a no fix for now. I will update if client returns for furthe...	11
	2001 Volkswagen Cabrio GL 2.0L No Start VIN: 3VWBC21V51 Lord help me, turned out to be a failed ignition coil. This car is a hybrid of mark 3 (92-98) and mark 4 (99-05) parts. The instrument panel is mark 3, hence there is no communication with it. The immobilizer has it's own gateway (block 25). I was focusing... Trouble codes: P0304 (Misfire cyl 4), P1255 (CTS short to ground), P1570 (ECU locked), 01176 (Immobilizer Key signal too low intermittent).	4

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