Automotive Technicians Technical Discussion and Fixes for Aug 5, 2011

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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models

	Help Request	Answers
	1999 Audi A4 Quattro 2.8L Excessive Emissions, MIL Lamp on VIN: WAUED28D7X Vehicle came in with P0411 secondary air flow incorrect. Had some failing vacuum lines so those and the vacuum solenoid were replaced. 6 weeks later the code came back and the combi valves were replaced. The air pump can be turned on manually and it appears to... Trouble codes: P0411 (Secondary aire injection incorrect flow)	View
	2003 Audi A6 Quattro 2.7L Engine VIN: WAULD54B14 I was wodering if any of our Audi experts know if an APB engine code will work on this car that has a BEL engine. Engine ran out of oil and we're replacing it. I noticed the valve covers are different (different coils). That can be easily swapped along with th...	View
	2003 Audi A4 Quattro 3.0L fuel gauge VIN: WAULT68E33 Fuel gauge intermittently goes below empty. Sometimes cycling the ignition switch will get it going again while at other times it will get stuck just below empty. Sensor one reads 58 ohms and sensor 2 reads 63 ohms. What are the specs for the sending units? ...	View
	1993 BMW 325i 2.5L Stall VIN: WBACB4315P Runs good, shifts fine. When hot, in drive, ac on, it will stall like torque convertor coming on. Will not do this with ac off. In revers with ac on no problem. In drive with ac on, idle up a little with foot and no stall.I also found a code 26 for battery vol... Trouble codes: 100 (gear monitor), 20 (speed signal), 40 (pressure regulator), 54 (ground mag), 22 (trans oil temp sen)	View
	1999 BMW 540i 4.4L cooling fan VIN: WBADN5336X Customer complained of a noisy cooling fan. The fan in front of the condenser sounds like an old air raid siren when it winds up. A new fan assembly makes the same noise when the ac is on. The engine driven clutch fan operates, but may be a bit on the lazy sid...	View
	2006 BMW 325xi 3.0L Starting VIN: WBAVC93567 OH my God someone please help. I have this BMW 325xi, towed in.I inserted the fob and pressed start button, I heard relays activate and a click from engine compartment, tried couple of times. tapped starter and got a kick and spark. I replaced starter removing...	View
	1999 Buick Century Custom 3.1L No Start, Stall, Misfire VIN: 2G4WS52M1X Need some help on this one GM guys. Customer had the car towed to me saying that it would not start and immediately shut off. Customer sayed that he replaced the fuel pressure regulator because he saw fuel coming from the vacuum port. I put a fuel pressure gua...	View
	1998 Chevrolet Blazer 4.3L O2 codes VIN: 1GNDT13W4W When we received the vehicle the owner had replaced the O2 sensors with aftermarket sensors and the codes came back on. Codes are P0135, P0147, and P0155. When we checked it we got only one code for sensor 3 bank 1. We assumed a bad O2 possibly and replaced it...	View
	2000 Chevrolet Camaro 3.8L No Start VIN: 2G1FP22K1Y ok guys ,customer cut car off to go to work when he went to get in it to go home it would not crank,does not make a sound,ok i have power at the relay when you try to crank on 85 pin,power all the time on pin 30 i can jump pin87 it wii crank and run for a seco...	View
	2000 Chevrolet Blazer LS 4.3L Hesitation, Misfire, MIL Lamp on VIN: 1GNCT18W8Y Good evening, we have a 2000 s10 blazer here this has a 4.3 spider web injection system. On cold starts the truck runs poorly, backfires has no exceleration until warmed fuel pressure is 65psi all the time, fuel trims at 3to-1 short turm and long term. O2 sens... Trouble codes: P0300	View
	2002 Chevrolet Trailblazer EXT LT 4.2L MIL Lamp on VIN: 1GNDT13SX2 This vehicle sets code p1482 very intermittantly. I have tested the fan per factory trouble chart, and cannot find a problem. Fan engages when commanded on with Tech2. Fan disengages when commanded off. Fan will match any desired speed of PCM. I have checked a... Trouble codes: P1482	View
	2002 Chevrolet Avalanche 1500 Z71 5.3L Brake line routing VIN: 3GNEK13T92 Brain cramp. I had to replace rotten lines off the EBCM and mixed up the routing. I can't find it in [...] or googling it. I did find a request for help from someone else too that did the same thing. I really need help to find what line goes where, mine is...	View
	2005 Chevrolet Aveo LS 1.6L MIL Lamp on VIN: KL1TD62675 replaced purge solenoid for failure . vehicle came back. rechecked purge solenoid, does work on start up. replaced fuel pressure sensor cause only thing else on diagnostic sheet . my scanner shows no data for fuel pressure sensor to run diagnostic sheet correc... Trouble codes: P0496	View
	2000 Chrysler Town & Country Limited 3.8L door locks VIN: 1C4GP64LIY the door locks work fine until you turn key all the way on at that time door locks will not work at all can some one help me	View
	1999 Dodge Ram 2500 8.0L Misfire VIN: W9XJ505390 Replacing the coil made it run smooth for a couple of days,but it came back today with a misfire.I hooked up to it with a scan tool and found it was counting up a boat load of misfires on 6 but 1 was OK.I tried swapping the 6 and 8 plug wires .After I swapped ...	View
	2005 Dodge Sprinter 2500 2.7L Hesitation, Surge, Cuts out, Misfire VIN: WDOPD74425 ENGINE HAS A CUT OUT OR MISFIRE ON ACCEL ONLY IN THE LOWER RPM RANGE, BUT AT TIME WILL DO IT AT IDLE.Feels like the injectors just shut down for a instant. Here is the kicker! only does it going forward in neutral or park, have never been able to get it to act...	View
	2005 Dodge Durango SLT 4.7L MIL Lamp on VIN: 1D4HB48N75 code p2096 keeps coming back - i have not found any leaks on the exsaust system as of yet. need some help from chrysler technicians to guide me in this headache. this all the work i have done to this vehicle. thank you Trouble codes: P2096	View
	1998 Ford Taurus SHO 3.4L Poor Idle Quality, stumbles on cruise VIN: 1FAFP54N7W Car was towed in after another shop could not fix the problem. When it got here, it would attempt to start but never was able to fully start. We were told the other shop did plugs, both front cats and a couple other things I don't remember. Long story short. I...	View
	2000 Ford Expedition Eddie Bauer 5.4L blower motor VIN: 1FMRU17L4Y have no power at blower speed controller ckt 399 brn yellow, go to blower flasher relay block have power on lt grn wire and wht vio wire but noticed the orange wire which is ground wire from control head has 12 volts which tells me control head is not groundin...	View
	2004 Ford Escape XLT 3.0L Poor Idle Quality VIN: 1FMYU931X4 Truck came in with a rough idle, in drive or with ac on. No codes in memory, but bank 2 fuel trim long term was kinda high at around 18, we then smoke tested it, and found a lower intake leak, replaced lower and upper gaskets. Still no change, it runs rough at...	View
	2005 Ford Explorer XLT Sport 4.0L instrument cluster VIN: 1FMZU77K25 customer complaint is intermitant and or eratic operation of tach spedometer odometer reading and fuel guage. this truck was in once before for the same thing and at that point all fuses checked good, no codes in system for ecm or cluster. Performed visual ins...	View
	2006 Ford E-350 Super Duty XLT 6.0L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1FDWF37P96 Hey 6.0 techs, just need to bend someones ear abit and attain some wisdom. This vehicle is a city truck in our town, the vehicle came in two weeks ago,for a complaint of poor idle quality no power and black smoke mostly at cold start up. I scanned it and found... Trouble codes: P1335 (egr pos. sensor minimum stop performance)	View
	1997 GMC Yukon SL 5.7L MIL Lamp on VIN: 3GEK18R5VG I have checked for play in timing chain when move crank dist turn when turn crank both ways immediately. Help? Trouble codes: P1345	View
	2002 GMC Savana 3500 5.7L 2-3 shift solenoid VIN: 1GDJG31R82 This vehicle drove in, in limp mode with code p0758 2-3 shift solenoid code in system. click tested solenoid and it clicks. Replaced solenoid anyway. No bettter. Check power feed to solenoid-ok checked ground signal from VCM- ok. check circuit from VCM plug to...	View
	2003 GMC Sonoma SL 2.2L pushing fluid thru dipstick tube VIN: 1GTCS19H43 This is my sister-in-laws truck. She stopped for an oil change and they told her she was pushing trans fluid out of the dipstick tube. They thought it was over full and removed more fluid even tho she told them no fluid has been added in a year.Needless to say...	View
	1993 Honda Prelude VTEC 2.2L Excessive Emissions VIN: JHMBB1175P car doesnt miss spark plugs and wires ok oil was black, changed oil and pcv valve hc drop from 564 to 259 on idle any tips on that??	View
	1998 Honda Civic DX 1.6L Misfire VIN: 2HGEJ6673V One out of four spark plugs has a red colored insulator I’m curious as to what caused this? Your help on this is greatly appreciated.	View
	2001 Honda Civic EX 1.7L engine VIN: 2HGES257X1 Customer noticed that vehicle started using oil (about 1.0 qt. every 1,000 miles. This started at about 230,000 miles. Customer now states that vehicle is using 2.0 qts. every 1,000 miles. There are absolutely no leaks and no smoke out tailpipe either while dr...	View
	2003 Hyundai Sonata LX 2.7L Monitors not setting VIN: KMHWF25H63 Vehicle will not pass the Illinois Emission test due to monitors not setting. The comprensive, misfire, heated o2, and evap will set. The fuel system monitor, cat, and o2 monitor will not set. Have tried driving the drive cycle still not set. Not sure what the...	View
	2002 Nissan Sentra GXE 1.8L speed sensor VIN: 3N1CB51D52 checked rev sensor with lab scop at comp it checked ok checked grounds and 5 volt frf code p0720 comes right back	View
	2004 Nissan Frontier XE 3.3L Hesitation, Cuts out VIN: 1N6ED26Y34 I have a nissan truck that the customer complains of going into almost a limp mode only going to 2000 rpms. this only occurs every once in a while. I have only been able to produce it once. The rpms go back and forth from 1000 to 2000 rpms even with the thrott... Trouble codes: 338 (knock sensor high input), 500 (vehicle speed sensor malfunction A)	View
	2007 Nissan Maxima SE 3.5L Ecm VIN: 11N4BA41E7 Hello everyone, I was hoping someone could give me their input. I am working on a 2007 Nissan Maxima 3.5L. I was in the middle of reprogramming the ECM with my Nissan Consult 3 when my computer froze. Now I can't communicate with the ECM using both my Consult ...	View
	2009 Nissan Altima S 2.5L Immobillizer VIN: 1N4AL21E99 I have been using nissian super code softrware to convert bcm 5 didget code to 4 digit pin code. I use a launch x-431 scanner and an after market key programmer to program keys and do the control unit initialization. I am able to do the programming on 07 and 0...	View
	1994 Plymouth Voyager SE 3.3L 1-2 Shift VIN: 2P4GH45R1R Van originally came in for speedometer dropping out and not shifting properly at times. Now it back again doing almost the same thing but the last time I drove it on 8-3-11 the speedometer was working but it would not shift. If you turn off the ignition it wil...	View
	1989 Pontiac Firebird Trans Am GTA 5.7L No Start, Cuts out VIN: 1G2FW2180K hello all, i have a 1989 firebird 5.7 tpi that keeps burning up coils & pickups. i found 2 grounds on the back of passenger side cylinder head that was bad and repaired but i'm still having this problem with the car burning up coils & pick ups. i would appreci...	View
	2006 Porsche Cayenne Turbo 4.5L Pcv VIN: WP1AC29P76 This car has had a history of high oil consumption since about the 30K mile mark. Customer has to add about a quart every 800 miles or so. The car was in for the cracked coolant pipes on the engine this time. I noticed that there is a very high vacuum at the o...	View
	1986 Toyota Cressida Luxury 2.8L nox VIN: JT2MX73E7G 15 hc reads 32 co .22 nox 983 25 hc 27 co .25 nox 700 check timing was good egr function check ok, engine stumble when I aplied vacuum not a lot but it did. I clean the throttle tomake sure passage is not plugged up and seem ok but still has high nox,wondering...	View
	2001 Toyota Sienna LE 3.0L Dome lights, Door locks, keyless entry, key chime VIN: 4T3ZF13C51 No power door locks or keyless entry, no dome lights, no key chime.	View
	2001 Toyota Corolla LE 1.8L MIL Lamp on VIN: 2T1BR12E01 Car came in for p0441 and found purge valve sticking open .Letting vacuun through even with valve eletric connector disconnected.replace old one because it was not sealing.Replaced with new one and car came back 2 months later with same problem.Is there someth... Trouble codes: P0441	View
	2002 Toyota Sequoia Limited 4.7L Radio VIN: 5TDBT48A12 hi all, thanks in advance for your help on this. yesterday the customer was driving when all the dash idiot lights lit up and the radio cut out. today, all the dash lights are normal and no stored codes, but the radio still doesnt work at all. no sound, no dis...	View
	2006 Toyota Highlander 3.3L Suspension VIN: JTEEP21A86 when driving over bumps on road or rough roads a deep noise like struts or axle moving in and out, had other tech in back while driving over rough area,could not pinpoint where noise is coming from.tightened rear susp. bolts,noise sounds as if axles are moving...	View
	1999 Volkswagen Passat GLS 2.8L No Start VIN: WVWMD63B9X Dear fellow techs, I need some help. We are working on a '99 VW Passat 2.8 DOHC and I am trying to locate the ECM Power Control Relay. I have pulled the knee panel and relay #219 is not there. I have pulled the ECM cover and only one relay is there, #373. Is ... Trouble codes: 18010 (Voltage supply to termial 30 to low.)	View
	2002 Volkswagen Jetta GLS 1.8L Cooling Fans VIN: 3VWSE69M42 This car came in with a overheating issue, turns out cooling fans were not working. Tested fans to find that they "do" work so we wnt ahead and replace the control module, fan switch on rad. And temp sensor on t-stat housing...fans still are not coming on and ...	View
	2002 Volkswagen Jetta TDI 1.9L cam/crank seals VIN: 3VWSP69M42 We are trying to get to the bottom of an issue with the cam and crank seals for Volkswagen and Audi. According to Mitchell if the vehicle came equiped with a PTFE style seal you must replace it with a PTFE seal. The only seals listed for these vehicles by the ...	View
	2008 Volkswagen GTI 2.0L Radiator fan VIN: WVWHV71K68 I need some help from some VW guys. The radiator fans run anytime the engine is running. The engine management shows 48 to 53 percent duty cycle to the fan after start up, even cold. The oil temperature reads -60 degrees C at all times. This has a BPY engine. ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2000 Audi TT 1.8L Stuck LTFT numbers VIN: TRUTC28N2Y We discovered the Long term fuel trims changed VERY SLOWLY!!! If we disconnected the fuel pressure regulator and drove for 10 minutes it would change only after about 5 minutes. After we discovered that, we put in the MAF again and went for a long drive. Th...	11
	1991 Chevrolet C1500 Silverado 4.3L Surge, Stall VIN: 1GCD14Z8MZ replaced fuel pump fixed problem . fuel press was 5 psibefore replaced .now 11 psi . thanks to all that helped	21
	2005 Chevrolet Cobalt LS 2.2L starting VIN: 1G1AL52F85 Thanks to all that responded...I HAD A PROBLEM WITH BCM STAYING POWERED UP ALL THE TIME IT WOULD GO TO SLEEP FOR ABOUT AN HOUR THEN WOULD LIGHT BACK UP CAUSING THE DRAW..I TOOK THE ADVISE FROMT THOSE THAT OFFERED HELP AND AFTER IT HAD BEEN IDLE FOR AWHILE I DI...	7
	2007 Chevrolet Silverado 1500 LS 4.8L ses light on VIN: 1GCEC19X17 well what we did was go off of the global side and got a catalyst efeciency below threshold. so we installed a new y pipe and all is good now. one cat was hollowed out and sounded like an exhaust leak.	7
	2008 Chevrolet Uplander LS 3.9L airbag VIN: 1GNDV23W78 THANKS TO ALL THAT REPLIED THE FIX WAS THE SEAT BELT TENSION SENSOR, R/F SEAT THE B0092 IS JUST GENERIC CODE YOU MUST FLASH CODES OUT W/ TECH 2 I FOUND MY ISSUE WHILE WATCHING VOLTAGES AT SEAT CONTROL MODULE AND FOUND A FALL OUT THRU SEAT BELT TENSION SENSOR W...	4
	1999 Chrysler LHS 3.5L No Start VIN: 2C3HC56G1X sorry for the delay in closeing this request I finally figured out with the help of the replies on here the timing belt was at fault it had skipped one tooth on the right cam after resetting the belt and found a bunch of garbage belt pieces from the sheared se... Trouble codes: 0340 (cam shaft sensor signal missing).	24
	2003 Chrysler Town & Country LXi 3.8L downshift VIN: 2C8GP54L03 Thanks for the help...a couple of you hit it on the head...it was the alternator. I pulled the cooling fan fuse & jumpered it so I could look at the amperage waveform which was a good pattern. I let it run for a while & looked at the charging pattern w/ the cl...	7
	1981 Ford F-150 Custom 5.0L No Start VIN: 1FTCF10F0B Thank you very much to all who replied. I replaced the rubber line from the frame to the fuel tank and the line from the frame to the fuel pump. The carb needed a rebuild because the power valve was busted but the customer didnt want to do it. The truck set fo...	29
	1996 Ford Contour GL 2.0L Compressor VIN: 1FALP6537T I got confused for what i read about the escorts and lynx, but this car do not use that system this one actually got the relays in a box beside the battery, it ended up being a broken wire right at the terminal underneath the relay box, the purple wire, re-cri...	4
	2007 Ford Mustang GT 4.6L Wont set monitors VIN: 1ZVHT85H17 THANKS TO ALL WHO RESPONDED AND FOR THE VALUABLE INFORMATION THAT I RECIEVED. WE ENDED UP HOOKING UP WITH A TUNER THAT KNOWS THESE SYSTEMS WELL AND WE BACKED UP THE CURRENT PROGRAM AND TUNED IT TO READ THE CATS THE O2 HEATERS AS WELL AS THE O2S. WITHIN A FEW M...	12
	2008 Ford F-150 Lariat 5.4L Engine VIN: 1FTRW14W08 Customer fought with dealer and managed to send it there. I did get a vct for it but never installed it	9
	1996 Jaguar XJS 2 2 4.0L No Start VIN: SAJNX2740T The relay was found in a place I thought there was no likelihood of finding it. Above the battery tray is a platform with the conv. top pump and a row of relays. Right next to it is a long sheet metal panel with the mount or the deck lid gas strut attached. B...	4
	2000 Jaguar S-Type 4.0L fuse 11 VIN: SAJDAO1D3Y Replaced the A/C Compressor, It had a shorted compressor clutch.	8
	2004 Jeep Liberty Limited 3.7L MIL Lamp on VIN: 1J4GL5874W FOUND THAT THE NHARNESS TO THE LEAK PUMP WAS COMPROMISED AND THE WIRES WERE A NICE SHADE OF GREEN...GOT A FACTORY REPLACEMENT PIGTAIL(THET STOCKED IT ) AND SENT THIS ONE PACKING...SORRY FOR THE DELAY,BENN ONE OF THOSE WEEKS Trouble codes: P0440, P0456.	7
	2004 Land Rover Freelander HSE 2.5L MIL Lamp on VIN: SALNE22204 USED CAR DEALER SENT VEHICLE BACK TO AUCTION. SORRY I DONT HAVE ANYMORE INFO. THANKS MEL Trouble codes: P0332 (Knock sensor b2 low input).	6
	1991 Mercedes-Benz 300SL 3.0L cooling fan VIN: WDBFA61E8M Thanks for all of the help. I checked the connections and the wiring at the sensor but didnt find anything wrong. The customer doesnt want to spend any more money on it and it has other issues. Thanks again for the help!	4
	2001 Nissan Sentra SE 2.0L gauges VIN: 3N1BB51D61 I would like to say Douglas and Todd were right on with this one.I put a used cluster in with nearly the same mileage and all is fine.Again a big thanks to you guys and what a great group iATN is.	3
	1992 Subaru Legacy L 2.2L No Start VIN: 4S3BJ6321N Well the customer declined tearing into the car anymore and scrapped it	4
	2003 Volkswagen Golf GLS 2.0L Misfire VIN: 9BWBK61J03 Thanks to one and all for their assistance. This one is not fixed-too little information to go on, too random to pinpoint. We have now driven over 400 miles since the last incident with absolutely no recurrence of either the problem or with codes. We turned th... Trouble codes: P0300 (Multiple misfire), P0304 (4 Misfire), P0204 (4 injector circuit malfunction).	7
	2005 Volkswagen caddy 1.9L No Start, Poor Idle Quality, Misfire VIN: WV1ZZZ2KZ5 thanks every one for your help new owner of car didnt tell car yard or us that he put some petrol into his diesel van ,this caused the belt to jump teeth due to either poor run or partial hi pressure pump seize ,starter failed due to customer cranking too long... Trouble codes: P0341.	5

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