Automotive Technicians Technical Discussion and Fixes for Jul 17, 2012

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	Help Request	Answers
	2001 BMW 330i 3.0L starter VIN: WBAAV53471 Vehicle came in on hook for a no crank condition.It sat several days before we had time to look at it.When I went out to bring it in the shop it started right up.We tried it on and off all day.The next day it would not start on the first key cycle,tried again ...	View
	2008 BMW 328i 3.0L retractable hardtop VIN: WBAWR33598 BMW techs...we have this E93 dropped off to us with the RHT(retractable hardtop) stuck halfway open (or halfway closed). The trunk is closed and there is a "Hard code" A691(Hall sensor,Rear end module open) that will not clear. We cannot open or close the roof...	View
	1983 Cadillac DeVille 4.1L Excessive Emissions VIN: 1G6AD4787D Hello dear iatn members, i'm stuck with this classic american icon,it happened that the car failed the ca. Smog inspection with high nox and hc emissions, fuel pressure is good, 15 psi, specs are 10 psi, any way, oxigen sensor was switching very slow, egr valv... Trouble codes: 52 (Ecm memory reset indicator)	View
	1989 Chevrolet K1500 Cheyenne 5.0L Hesitation, MIL Lamp on VIN: 1GCDK14H7K This truck came to me becomes the customer claimed it used a lot of oil and wanted a new engine installed. I went for a drive and could tell it was burning oil the whole time and had a lack of power. I installed a new Tri-Star 305 engine. When I was swapping... Trouble codes: 43 (ESC Module)	View
	2003 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J33 No start- after many tries it starts and runs fine. There is no spark when it's not starting. I don't know if there is injector pulse because the fuel injectors are buried and I can't get a noid light hooked up, and when it does start, there is no smell of gas...	View
	1998 Chrysler Cirrus LXi 2.5L Poor Idle Quality, Hesitation, Stall VIN: 1C3EJ56H2W This car came in on the hook with an intermittent CPS. CPS was replaced, still had a rough idle, and EGR valve, plug wires, and MAP sensor were replaced to cure the rough idle. Car was running great when it left, owner reported two days later that it was idli...	View
	2000 Chrysler Sebring JX 2.5L No Start VIN: 3C3EL45H2Y We have here a no start condition with no diagnostic trouble codes. Have fuel pump operation, no injector pulse and no spark. This vehicle came in from another shop with a new distributor and a new crank sensor. We have 8 volts on the PCM 8V signal wire only ...	View
	2004 Chrysler Sebring Limited 2.7L Mechanical VIN: 1C3EL65R14 Greetings to all we are doing a water pump on this car we are puttimg back the timing chain in the all data procedure it says to bleed out oil for the tensioner.im thinking this acts like a hydraulic lifter compress it to bleed oil then install it and let oil ...	View
	1997 Dodge Dakota SLT 5.2L No Start VIN: 1B7GL23Y8V Well little help needed this truck keeps eating the coil first time about a year ago.then 3 weeks ago thats when i went looking for why? cap rotor &wires had over 100k customer said and they look it plugs had been changed 30k before but i put in a new set to p... Trouble codes: 43 (Ign. Coil primary)	View
	2008 Dodge Grand Caravan SXT 3.8L engine VIN: 1D8HN54P18 Van is using oil, about 3 quarts every 1500 miles. No smoke noticed from exhaust and no leaks.	View
	1992 Ford Taurus GL 3.0L No Start, Hesitation, Cuts out, Stall VIN: 1FACP52U1N When car is cold (overnite)and when started you have to warm it up completely before you can drive it. otherwise it will fall on its face also has no power and if it stalls you will have to let it sit for a good half hour before you can start it again. problem...	View
	1998 Ford Explorer Eddie Bauer 4.0L Mechanical VIN: 1FMZU32E7W truck came with a loud noise coming from engine, check oil pressure 58 psi good leak detection test good, diassemble front of engine found the tensioner at balance timing chain broken the one at the camhaft is good, proceed to install camshaft holder and it wa...	View
	2001 Ford Ranger Edge 3.0L Poor Idle Quality VIN: 1FTYR10U51 Vehicle came in after sitting for a year, running very rough, no codes. Found coil not firing strongly on one of the coils, plugs wiped out, wires arching, did find number one plug saturated with fuel. Replaced all of the above, great spark, ran great for a sh...	View
	2003 Ford Taurus LX 3.0L steering pump VIN: 1FAFP55253 Thanks in advance for your help, this Ford taurus make a terible squealing noise when at full turn position in both direction. At first it would do it just turning the wheel and increase when reaching full stop and with ac on it really magnifies the noise inte...	View
	2003 Ford F-250 Super Duty Lariat 5.4L Stall, Misfire VIN: 3FTNX20L73 We are at wits end. Engine will stall aat stops in or out of gear, like you turn off the key. Always restarts. Can kill engine by pumping the brake booster. Seems robbing vacuum will cause it to stall. Other wise runs fairly smooth. Did notice erratic compress...	View
	2005 Ford Ranger Edge 4.0L transfercase VIN: 1FTZR45E35 finishing test drive after replacing the rear pinion seal. I switched it to high @ 50mph and very quiet, a little later going 20 or so thru town on my way home, i switched it to 4 wheel low . First i hear the slipping of the engagement gears and then a loud ba...	View
	2006 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTSW21P76 the truck started wright up and was running out side for about two hrs and we test drove the truck for about 20mile it was running good and had good oil pressures when we are comming to a stop the truck die and would not start up at all the truck had over 996l...	View
	1997 GMC K2500 Sierra SL 6.5L Hesitation, MIL Lamp on VIN: 1GTGK29F7V The light was on all the time. we replaced the cross over pipe and the waste gate vac control solenoid. the ses lamp was out for 4 days but now its back. There is a very small exaust leak but i dont think its big enuff to matter. The customer has gotten the ex... Trouble codes: P0236	View
	2004 GMC Sierra 2500 SLE 6.0L doors VIN: 1GTHK24U94 can not open left door tryed inside and out and with key sprayed penitrating oil in area of latch any ideas how to open door except a big crow bar. thanks for any help	View
	2004 Honda Civic Hybrid 1.3L Mechanical VIN: JHMES95684 Hi People, I have a Honda Civic Hybrid with a code P1026, Valve Pause System Sticking ON. Have not worked on "this" vehicle before and was wondering if there is something I should know before jumping into it. It is also showing misfire codes for cylinders 1,2,...	View
	2006 Honda CR-V EX 2.4L right front take off noise VIN: SHSRD78806 on take off noise from right front with rotation of vehicle not rpms, grind noise, once above 25 no noise, had some play in right front axle replaced no change. looking at right front motor mount possiably causing shift of engine affecting right axle.	View
	2004 Infiniti G35 3.5L valve train VIN: JNKCV51EX4 This ticking noise sounds like right bank front cylinders, very light and consistent with rpm`s, dealer told cust. that timing chains are common but we are having a hard time with that thought. any information would be helpful. Thank You...	View
	2000 Jaguar XKR 4.0L transmission VIN: SAJJA42B8Y This Jaguar XK-R came in with code P1727. Customer complaint was that it drops out of gear and doesn’t engage until the speed drops below 15 PH. Jaguar wanted to replace the transmission so the customer came to us. The diagnostic for that code is clear the cod...	View
	2010 Kia Sedona 3.8L starter VIN: KNDMG4C39A Hi Kia folks, I have a perplexing problem with a no-crank in P and N on the tranny. All fuses are good, pcm and engine sensors have power. Cannot find evidence of immobilizer system, no transponder ring around ign lock etc. Verus scan tool reports MEC (pcm lo...	View
	1997 Land Rover Range Rover HSE 4.6L Brake Pedal VIN: SALPV1446V Need help with this rover. Customer came in stating that there is a grinding noise when stepping on brakes. Check it over and found that lf brake pads were all gone. Some how it broke the caliper bracket also. Replace front brakes. Rotors, pads, and new lf cal...	View
	2002 Lexus LS430 4.3L Head light VIN: JTHBN30F52 Hey there we have 01 lexus ls 430 there is a massage on cluster that ( head light leveling )when i start the car both side head light goes down and up and works fine we cant get rit of that massage any idea what can be wrong ???	View
	2007 Lexus GS350 3.5L Throttle inop VIN: JTHBE96S27 Towed vehicle in from workplace mon no juice to main fusebox ] internal modular fuse blown change modular fuse car starts no power multiple lights mil,abs, traction and message indicator scab vehicle find p0504.p2118,c1201 disconnect battery short pos and... Trouble codes: C1201, P0504 (A and b switch correlation), P2118 (Throttle actuator motor correlation perf)	View
	1991 Mercedes-Benz 190E 2.3 2.3L abs new customer,abs light on all time,protection relay ok,all speed sensors ok,all connectors look good,have mercedes 126 abs tester but will not connect to vehicle,any body can point me in the direction to look,thanks.thisn is a w201 190e 4cyl.dont think they we...	View
	1992 Mercedes-Benz 300SL 3.0L Mechanical VIN: WDBFA61E4N Hi need some assistance from the mercedes techs, This car came in shifting and driving fine. The transmission had alot of leaks. We removed the transmission and got a full seal kit. i removed the tail shaft the governor the band servo the front pump, basically...	View
	1997 Mercedes-Benz SL600 6.0L Convertable top VIN: WDBFA76F8V Evenin tech's and thanks for taking a look. Came in with bad engine mounts, problem resolved. Customer brought to my attention a noise in the trunk (door lock module cycling) with the top down. Read a TSB about a door lock actuator issue. So customer puts the ...	View
	2002 Mercedes-Benz G500 5.0L transmission VIN: WDCYR49E32 this vehicle's engine was running rough. after we scanned it we replaced coil number 6 for a misfire and we performed a complete tune up (spark plugs - wires set, air filter, fuel filter, clean out of throttle plate.) engine is now running smooth/ when the own...	View
	1995 Mercury Grand Marquis LS 4.6L Compressor VIN: 2MELM75W3S Same as in related repair history	View
	1999 Mercury Cougar 2.5L temp guage VIN: 1ZWFT61L5X this is a used car lot car and the temp guage does not work it had a temp sensor replaced before we got it the temp and fuel guage does not do the sweep when first started although it appears the fuel guage is pretty accurate. have power on the orange and viol...	View
	2003 Nissan Altima 2.5L Timing Chain VIN: 1N4AL11D73 My problem is vehicle is a hard start intermitantly and sets pending P0335a. Sometimes a hard P0335 will set MIL on. When head gasket was replaced I used the "don't remove the oil pan/timing cover method" as I read in previous posts/fixes on iATN this is possi...	View
	2003 Oldsmobile Alero GL 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1G3NL52F23 Customer went to visit his daughter in hospital,car was running fine.after visiting with her the car was running like crap!could barely get it to my shop the next day.the exhaust was making a weird popping noise at the tailpipe.he said the check engine light n... Trouble codes: P0171, P0300	View
	1985 Porsche 911 Carrera 3.2L flange bolt VIN: 1P0EB0918F Customer had new driver's side rear axle installed. It fell out and had vehicle towed in here. We installed new driver's side rear axle, flange and bolts. The drive axle we installed has come out with some of the bolts broken off and some have fallen out. Any ...	View
	1988 Toyota Pickup 3.0L No Start VIN: JT4VN63C3J Toyota techs please help, i have no spark on this 3.0l v6,positive side of coil has 12v, no pulse on negative side of coil, tried a known good igniter & a complete distributor (with pickup coil, harness etc) still no spark, what am i missing ?	View
	1999 Toyota Tacoma Pre Runner 3.4L motor VIN: 4TASN92N8X need help on this one please and thanks in advance. have a 99 toyota truck that i can not get to idle down under 2000 rpm. have checked for vacum leaks,tps,iac,took off trottle body cleaned. checked to see if any wear,found none checked to see if butterfly was...	View
	2003 Toyota Tacoma Pre Runner 3.4L refueling VIN: 5TEGN92N03 hard refueling ,,,has new overfill valve,char cansiter not full of fuel why is tank not breathing ???	View
	2004 Volkswagen Touareg V6 3.2L Stall VIN: WVGBC67L84 This vehicle came in with stalling after 20 seconds. This vehicle uses 2 fuel pumps, the passenger (right) side is used for starting for high fuel demand and the driver (left) side is the main pump and is supposed to take over when vehicle is started. I origin... Trouble codes: P0322 (16706 - engine speed sensor - no signal - intermittent)	View
	2006 Volkswagen Beetle 2.5 2.5L intermittant operation VIN: 3VWPW31CX6 a/c is not working	View
	2007 Volkswagen Jetta Wolfsburg Edition 2.5L Trans VIN: 3VWEF71K27 Hi everyone, this vehicle came in with the following code po715{17099} and i cleared it but it comes back immediately.i checked the connections on most of the trans circuits but all seemed ok. Alldata describes this code to be an input speed sensor. I would ...	View
	2008 Volkswagen Jetta S 2.5L starter VIN: 3VWJZ71KX8 Here is a good one for a VW tech. Car quit while driving and would not crank over. Customer put car in park and it would not come out of park. Customer jumped battery didn't help. Had it towed in. I tested battery and fuses first. Confirmed the following thing...	View
	2010 Volkswagen Jetta TDI 2.0L injector VIN: 3VWAL7AJ8A Hi VW pros. I need information how to remove injectors in order to replace valve cover that was damaged in accident. any special tool required ? thanks in advance.	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2005 Audi A6 Quattro 3.2L Poor Idle Quality, Hesitation, Surge VIN: WAUDG74F95 Group,I had many replies that these direct injected engines are prone to carbon build-up on the valves because fuel never touches the valves so detergents can't keep them from building carbon. That sounded like my problem so I pulled the upper intake and I cou...	10
	1998 Chevrolet S10 2.2L Starting VIN: 1GCCS1446W well after this truck would not start 3 times and all I had to do to get it started was to put it in neutral wiggle the shifter and it would start,it did it again after changing the ignition switch and the range selector on the trans.So I change the starter an...	14
	1999 Chevrolet Tahoe LS 5.7L No Start, MIL Lamp on VIN: 1GNEC13RXX Hello All, Thanks for all of your help. As everyone eluded to from the begining the fuel pump module was defective. Install OEM fuel pump module, fuel filter, and tank pressure sensor cleared memory in VCM and wala she started up perfect with no check engine l... Trouble codes: P0122 (TP or APP Sensor), P1122 (TP Circuit Intermit low voltage), P0101 (Mass Air Flow).	26
	2000 Chevrolet Suburban 1500 LT 5.3L 2-3 Shift VIN: 3GNFK16T3Y VERIFIED MY PROBLEM IS INTERNAL TRANS, THANKS TO EVERYONE THAT RESPONDED. I HAD REMOVED DRAIN PLUG TO DRAIN PAN AND THEN REFILLED PREVIOUSLY. REMOVED THE PAN TODAY AND FOUND A TON OF DEBRIS IN THERE. THE FILTER WAS ALMOST COMPLETELY PLUGGED WITH IT. I WILL BE ...	15
	2004 Chevrolet C6500 Kodiak C6C042 8.1L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 5B4MP67G24 I got some info from another source telling me that the K&N air filter is the problem. Since the problem is at WOT, he said small amount of oil gets into the MAF & creates the problem, saying the oil will burn off so you can't see it. I changed the air filter ... Trouble codes: P0131, P0151.	6
	2005 Chevrolet Suburban 1500 Z71 5.3L Instrument lamps VIN: 3GNFK16Z65 Thanks everyone for all the help and suggestions. We have been allowing time- to see if this problem is cured. And so far it is. We determined that the short was in the rear door portion of the circuit. We did not locate the exact source of the short, but ...	8
	2007 Chevrolet Cobalt SS 2.4L MIL Lamp on Michael from Florida nailed it. Thanks to all others who replied. Purge Sol faulty. Trouble codes: P0496.	9
	2008 Chevrolet Impala LS 3.9L compressor/control head VIN: 2G1WS55398 I wiggle wires and found tapping on the fuse and relay box while the fans were on and they would cut out. Took fuse box apart and found green corrosion on the wires to the relay. Cleaned wires and connections no problem since. thanks for the help	16
	1997 Ford F-150 4.2L water pump VIN: 1FTDF1724V Thank you all so much for the help,and some excellent tips! We suspect it was an air pocket that didnt...burp...until after a long drive.But some of the tips I received,I can use forever! Thanks again!	10
	2003 Ford Focus LX 2.3L Compressor VIN: 1FAFP33Z03 FIGURED OUT IT WAS NOT THE TPS SENSOR, unplugged tps and drove it and it still did the same thing. STARTED CHECKING LOW PRESSURE CYCLING SWITCH VOLTAGE AND FOUND the power side was DROPPING DOWN TO 7 VOLTS AT TIMES (thats when clutch wouuld cut out SHOULD BE 1...	10
	2004 Ford F-550 Super Duty Lariat 6.0L Pressure, temperature VIN: 1FDAF56P14 Thanks for all the replies. This truck finally returned and I had a few days to work on it. I found the A/C working well but would start to fade after an extended drive and heat soak. I checked pressures. Low side hovering around 40 and occasionally lower,...	11
	2004 Ford F-150 Lariat 5.4L Stall, MIL Lamp on VIN: 1FTPX12504 the fix for the truck was new timing chains and tensioners along with new phasers. please remember this truck came to us not running and had major valvetrain damage with 184k on the odometer putting the engine back together the way it came in was a mistake we ... Trouble codes: P0340.	5
	2007 Ford E-350 Super Duty 5.4L Stall VIN: 1FCKE39L77 Okay it has been a couple of weeks now and I talked to the customer this morning he said the truck has not stalled since so I am going to say this one is fixed with replacing #5 coil. When we drove the truck we could never feel it miss fire but with the snap o... Trouble codes: P2105 (TAC system forced engine shut down), U0300 (Internal control module software incompatibility).	8
	2007 Ford F-350 Super Duty XL 6.0L Fuel VIN: 1FDWF37P47 Thanks to all the help! Reprogram and wire chafing so most everyone was right. Wire chafing was under the air cleaner tube on the main harness.	9
	2010 Ford E-350 Super Duty 5.4L ac VIN: 1FTDS3EL2A thanks to all for your input. i was unable to make this van cool any better than when it came in. I replaced the rear expansion valve, verified proper operation of rear shut off solenoid. Recovered and charge system 2 more times. Tried subtracting and addi...	15
	1990 GMC K1500 Sierra 5.7L front 4x4 differential vehicle is fixed, turns out that the intermediate shaft that goes into the right hand tube had several burrs and a little bit of sharpened edges, so when I tried to drive the gear on ,that contains the internal retaining ring, the retaining ring would be shave...	12
	2000 Honda Accord SE 2.3L No Start VIN: 1HGCG6697Y WE NEVER DID FIND THE PROBLEM FOR SURE. WE THINK IT'S THE PROCESSOR. THE PEOPLE DECIDED TO TAKE IT TO THE DEALER. AS OF YET THE DEALER INS'T SURE WHATS WRONG.	7
	2002 Honda Civic EX 1.7L no immobilzer light VIN: 1HGES26772 Thanks for all the help fellow techs, I replaced the immobilzer and the green key light started to work. Put in the old PCM and light worked with that one too. Figured all I had to do is get the locksmith back and reprogam keys, no dice. Now he says something ...	6
	2006 Land Rover LR3 4.0L abs VIN: SALAE24446 This vehcile seems to be repaired. Thank you to Edward, David and James for replies. All replies were helpful. We repaired the splice on the right floorboard and re replaced the brake lamp switch. I believe that you only get one shot at adjusting it correctly ...	3
	1998 Mazda 626 DX 2.0L Engine VIN: 1YVGF22C1W Our smoke machine wasn't working very well the first time around. We smoked the intake again and found a small leak at the intake gasket causing poor idle and stalling.	8
	2005 Saab 9-3 Linear 2.0L Hesitation, MIL Lamp on VIN: YS3FB49S45 Thanks for the replies. It doesn't happen often but we told customer to take this one to dealer. Dealer has had car for over 2 weeks with no fix. Dealer supposedly replaced ECM and that did not fix problem. There is a reason SAAB is going bankrupt, There vehic... Trouble codes: P2138 (Pedal position senso correlation).	3
	2004 Subaru Forester XT 2.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JF1SG69614 CHAD is DA MAN! That "pipe" before the turbo IS a small cat converter and plugged solid! Looks like a harmless ordinary pipe until looking inside from engine end. Unable to verify restriction sooner due to O2 sensor seized in pipes and did not want to open ... Trouble codes: P0011.	10
	1990 Toyota Pickup DLX 2.4L Poor Idle Quality VIN: JT4RN01P8L WE FOUND THAT THE WIRING CIRCUIT FOR THE O2 SENSOR HEATER WAS BURNED OUT IN THE ECU DUE TO LETTING THE O2 SENSOR HARNESS LAY ON THE EXHAUST UNTIL IT SHORTED OUT AFTER CUSTOMER REMOVED A LIFT KIT FROM THE FRAME. THIS DID NOT FIX THE ROUGH IDLE, IT WAS RUNNING A...	9
	1991 Toyota 4Runner SR5 3.0L temp gage VIN: JT3VN39W6M Thanks guys I am closing help request because I have not had time to get back on this car so the great help info provided me will be of help later. It was a used car sitting on the back burner as I said. I have been working on it for a couple years it can wait...	7
	2003 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWRH63B63 Thanks for everyone who replied. I found that the variable timing solenoid on bank 1 was not operating. the solenoid is bad. this was not on the codes in the pcm, but we just stumbled on it. Trouble codes: 17748 (Camshaft position sensor corelation), 17927 ([...] adj.malfunction).	8
	2006 Volkswagen GTI 2.0L MIL Lamp on, No power VIN: WVWEV71K96 Its fixed! I want to thank everyone who took their time to look at this posting.Especially Niccolas,Shekib,Jurgen,Steve,Carly and tom. Thank you very much but my question was. Is the open fuel pressure solonoid causing the lack of power. Yes it was I found out... Trouble codes: P2294, P2293, P0087.	6
	2006 Volkswagen Jetta TDI 1.9L No Start VIN: 3VWST71K26 Howdy folks, This one went to the dealer for probable ecm replacement. I did try unplugging every device I could find connected to the ecm (except the instrument cluster). I never found a TCM. there are three possible locations in alldata and it's not in an... Trouble codes: U0100.	11
	1999 Volvo S70 2.4L unknown This car is fixed, I replaced the two tone ring, indeed the dealer has those. I had a tone ring with a crack and the other one was OK, I mean no crack. I compared those rings with the new ones and they were smaller in diameter, I guess rust damaged. The back ...	10
	2007 Volvo XC90 3.2 3.2L MIL Lamp on VIN: YV4CZ98217 THANKS FOR ALL YOUR HELP ON THIS VOLVO, THE DIAPHRAM IN THE OIL BAFFLE ON TOP OF THE CAM COVER HAD RUPTURED ALLOWING VACUUM TO ENTER THE CRANKCASE, THE NOISE WAS AIR BEING PULLED THROUGH THE REAR MAIN SEAL. FUEL TRIMS RETURNED TO NORMAL. Trouble codes: 174 (Lean), 171 (Lean).	5

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