Automotive Technicians Technical Discussion and Fixes for Jun 10, 2013

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	Help Request	Answers
	2000 Audi A6 Quattro 2.8L ABS/Bleeding VIN: WAUEH24BXY Replaced front calipers/rotors/flexible lines and bled system with oodles of brake fluid. Flexible lines were cracked and rotors contaminated with CV grease and rust. Activated pump with VCDS but could not get effective braking. Now ABS light is on and brake l...	View
	2005 Audi A6 Quattro 4.2L engine VIN: WAUDL74F05 running 5w30 synthetic. system full. when first started can hear a deep knocking noise from front of engine more toward drivers side(isolated engine ear) can't seem to hear anything from the rear where the timing chains are. If it is restarted within 30 min, n...	View
	2000 BMW 528i 2.8L Blown Head VIN: WBADM634XY BMW experts. This is more of a general verification question. I understand the need for BMW tools to reassemble the head, but... do you need those special tools to disassemble the head from the block? For example, can you disassemble the Vanos without special ...	View
	1992 Buick Century Custom 3.3L Stall VIN: 1G4AH54N8N Hello, IATN members, and thank you in advance for your suggestions. This Buick's owner is an elderly lady who says that it drives fine for miles, but as soon as it's very warm and she comes to a stop light, it will stall. It does not have a vacuum leak; I smok...	View
	2000 Cadillac Eldorado ETC 4.6L battery light VIN: 1G6ET1291Y Vehicle came in for Battery light on and dash saying service charging system. Tested vehicle and no charging voltage and car stalled at 9 volts and would not restart. Charged battery replaced alternator with new one but not ac delco and cleared all low voltage...	View
	1994 Chevrolet S10 Blazer Tahoe 4.3L Ignition Cylinder VIN: 1GNDT13W5R Been a lot of years since I have been into one of these columns. This vehicle will intermittently not turn to crank. It will always turn to run with no problems but will usually not turn to crank. Take the turn signal and housing off the column and put the cyl...	View
	2005 Chrysler PT Cruiser Touring 2.4L Radio VIN: 3CHFY58B75 I am having trouble with the radio on my PT Cruiser. The sound and display will cut out, sometimes for a split second or sometimes for 10 minutes. While it is off I can change stations change the mode to CD, or change discs (factory remote 10 CD changer locate...	View
	1998 Dodge Ram 2500 5.9L Misfire VIN: 1B7KF2369W This truck came in and it is missing at idle. it seems to have plenty of power and no smoke, no codes, the strange thing is when doing the cylinder balance with the modis all cylinders seem to be equal, it seems to miss just on the cylinder I am disabling and ...	View
	2005 Dodge Dakota SLT 4.7L temp warning indicator VIN: 1D7HW48N85 vehicle came in with complaint of trans over temp indicator comes on sometimes and then goes back off after a few moments. did duplicate the symptom one time. has a p0218 stored. was not able to capture scan tool data. replaced the trans solenoid and temp se...	View
	2009 Dodge Charger SE 5.7L Engine/valvetrain VIN: 2B3KA43T19 Vehicle came in with complaint of engine noise and fear of needing engine replacement. Idling, the engine makes a loud tapping/clicking noise. Using a stethescope, the noise can be heard loudest at the intake manifold, indicating a possible problem with one or...	View
	2002 Ferrari 360 Challenge 3.6L blower VIN: ZFFYT53A52 HI I have a 2002 Ferrari 360 spyder The a/c blower runs on high speed all the time even with the key off. No other speeds are working and a/c only works in auto.I have no availability to any info on this car. I suspect it is the final stage (resistor) bad as I...	View
	1998 Ford Ranger XL 2.5L engine VIN: 1FTYR14C2W I am troubled at the cause 0f ae vacumn reading from a manifold vacumn port reading 10 inches and fluctuated up 4-5 inches on a steady rotation.I suspected or hoped the timing belt was off but found it was loose but lined up at all three pullys.It was aged and...	View
	2003 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTNX21P43 Would love some help as soon as possible, I did a complete cab removal to removed the cylinder heads and install the head stud kit. Replaced high pressure oil pump and all related sensors. Disassembled turbo and cleaned, replaced all injectors with new Ford ... Trouble codes: P2164	View
	2003 Ford F-150 King Ranch 5.4L Climate Control VIN: 1FTRW08L93 Tested for available vacuum at climate control "Pass" tested electrical side "Pass" sent head in for test,and or repair They sent back Saying "Pass". Still have defrost vent only. I have another customer same truck same year same problem... Thanks Oz	View
	2005 Ford Five Hundred SEL 3.0L Unknown VIN: 1FAHP27115 I have a problem here I need help on. This cvt trans was rebuilt 2 months ago and all was fine. It is back now, going into limp mode and setting codes P0701, P0961 & P0871. Code P0701 is just stating that trans is in limp in mode. Codes P0961 & P0871 are for p...	View
	2010 Ford F-150 FX4 5.4L Steering VIN: 1FTFW1EV5A Customer says vehicle turns/steers hard in morning. When he turns corner he has to turn it back to center, does not go back normally. I looked at power steering fluid and it has what appears to be silver metal flakes in it. I flushed out p/s and put in Merc V ...	View
	1995 GMC K1500 Sierra SL 5.7L Speedometer VIN: 1GTEK19KXS This one came in with a intermittant no speedometer and no Tachometer. When the problem occurs (no tach and speedo) I still have good rpm and VSS readings with the scan tool. Also, when the speedo and Tach are NOT working the transmission goes into default mod...	View
	2007 Honda Ridgeline RTL 3.5L MIL Lamp on VIN: 2HJYK16567 This truck, came first time to shop because of MIL ON, DTC's found P0172:System too rich B1. Taking a close look at data stream I could notice B1 is richer than B2, and remains under 0.84 mostly at idle (see Files 70019 and 70020 uploaded),but B2 remains rich ... Trouble codes: P0172 (Fuel System too rich B1), P0175 (Fuel System too rich B2)	View
	2004 Hyundai Santa Fe 2.4L No Start VIN: KM8SB12B54 Hi, I got this vehicle from another garage and had to R&R cylinder head to replace several valves after the timing belt let loose, I replaced the crank sensor with an oem Hyundai replacement as well. After everything was back together it would not start, I fou...	View
	1996 Jeep Grand Cherokee Laredo 4.0L No Start, Cuts out VIN: 1J4GZ58S0T Well guys were to start, this beauty queen came in on a rollback 2 weeks ago as a no start condition, it had dead crankshaft position sensor with P1398 and showed no activity on live data, replaced with a bwd aftermarket and ran. 2 days later it came back in w... Trouble codes: P1391 (Unable to learn/misfire numerator at limit), P1398 (Intermittent lose of cmp ckp), P0171 (System to lean), P0340 (Camshaft position seor circuit malfunction)	View
	1998 Lexus GS300 3.0L No Start VIN: JT8BD68S0W came in for a tune up. missing and running rough. done plugs and wires then road tested and run good. parked and customer came and started and died. one thing I did see some one in the past broke conectors and RTV them back at the coils and the TB conectors. ... Trouble codes: P0120 (Throttle Position Sensor or switch A circuit problem), P1120 (Accelerator Position sensor ciruit malfunction)	View
	2006 Mercedes-Benz E350 3.5L MIL Lamp on VIN: WDBUF56J76 Hello MB Techs On this vehicle we replaced the air injection pump and injection pump relay, because the air injection pump was bad, now after customer drove car for two days, the check engine light was turn on again, we tested for vacuum coming from the check ... Trouble codes: P00, 410 (malfunction of secondary air injection at right bankfunction chain), P00, 410 (malfunction of secondary air injection at right bankfunction chain)	View
	2009 Mercury Mariner Hybrid 2.5L start VIN: 4M2CU293X9 this car was driving alright, mistakenly forgotten to turn key completely off, key was on run position, and accidentally battery was taken out of the car... and when battery came back, was placed on directly, now to get into the car and realize the key was ...	View
	1990 Mitsubishi Mighty Max 2.4L cel Hi, know this may be ignorant but how do you check codes on thos 90 mitubishi mighty max? Please help had some teeth pulled and I was out of theshop for a couple days. Need to get this done fast. Thank you.	View
	2002 Nissan Altima 2.5L No Start VIN: 1N4AL11D42 We are assuming a PCM issue but can't explain why now. Thanks in advance!!!	View
	2003 Nissan Xterra SE 3.3L Mechanical VIN: 5N1ED28T83 This Nissan Exterra SE has a noise at the front of the engine. Sounds just like a timing chain would. But this vehicle has a timing belt. The noise is loudest at the distributor. We had one a few years ago and replaced the distributor and that took care of the...	View
	2003 Nissan Sentra GXE 1.8L No Start VIN: 3N1CB51D83 We have thi nissan sentra that was a used car trade in. It apparently ran fine but now it wont start. Checked the basics Have spark at the coils and goes through the plugs, Fuel pressure reads steady 55 PSI while cranking. Compression readings 140-150psi on al... Trouble codes: P0462	View
	2004 Nissan Titan XE 5.6L Temperature Hi everyone... We have this Nissan Titan that overheats pulling a trailer or under a heavy load... The customer had it serviced at a local transmission shop where they claim to have put synthetic fluid in it and i believe them... My quistion is this vehicle re...	View
	2006 Nissan Murano SL 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: JN8AZ08W26 I have a 2006 nissan murano in my shop that came in for a cylinder 3 miss. When I pulled the code I found a p0303 at first. I pulled the intake and changed the plugs and the number 3 coil. At this time I checked for blistered coils( none were found) and checke... Trouble codes: P0303, P0300	View
	2007 Nissan Versa SL 1.8L Compressor VIN: 3N1BC13EX7 Hi everyone, I have a 2007 Nissan Versa that has a A/C issue. When the fan speed is in the off position the compressor turns on and the a/c button lights up (also the rear defrost button doesn't appear to work). When I turn the fan switch to position 1 2 3 or ...	View
	2007 Pontiac Grand Prix GT 3.8L enging VIN: 2G2WR58477 car came in with plastic elbow from intake blown open ,overheating.replaced elbows,waterpump. car still ran hot,radiator had typical dexcool reddish grainy deposits. pulled heads,sent out for inspection,replaced hd gaskets,bolts waterpump,stat,elbows and hoses...	View
	1999 Saab 9-3 2.0L Ignition Key Console VIN: YS3DD35N3X This is now the third time this has happened, all on this car that doesn't even have 60K on it. I get the call: "Bart, it's doing it again - the key won't turn". We have the car towed in and, indeed, the ignition key turns about halfway to "On" and stops, with...	View
	2004 Saab 9-3 Arc 2.0L Ignition Coils VIN: YS3FD45Y04 Hello techs. Got this nightmare 04 Saab 9-3 Arc in and driving me crazy. Vehicle cranks but will not start. Have good fuel pressure and pump primes and runs while cranking. Vehicle has no spark. Looked over the obvious plug connectors and such but clueless on ...	View
	2004 Saturn Vue Red Line 3.5L Stall, Misfire, MIL Lamp on VIN: 5GZCZ63464 Vehicle came in with intermittent Stalling. Scan showed P0172,P0300, P0301, P0302, P0303, P0304, P0305, P0306. Vehicle just had a tune-up in Jan. this year. According to "Misfire" Scan data # 2 & # 3 are the worst, some times the only two that are misfiring. S... Trouble codes: P0172 (Rich B1), P0300 (Multiple Random Misfire), P0301 (Misfire 1), P0302 (Misfire 2), P0303 (Misfire 3), P0304 (Misfire 4)	View
	2005 Subaru Outback XT 2.5L Poor Idle Quality, MIL Lamp on VIN: 4S4BP68C15 Hello, The customer came in with a "whistling" sound. We diagnosed the noise to be a bad turbo. The turbo was replaced along with the oil lines as requested by Subaru. At this time, the timing belt, water pump, and the components were replaced as well. Upon t... Trouble codes: P0021 (A - Cam Position Timing Over Advance or System Performance B2)	View
	1999 Toyota 4Runner SR5 3.4L Axle seals VIN: JT3HN86R0X Customer came in with leaking rear axle seal(s)last year. Had had it repaired the time before me in Moab. I have a fabricated puller patterned after Toyota's that has worked very well on a number of Toyota rear axles. I don't remember finding any particular fa...	View
	2002 Toyota Highlander 3.0L AC compressor VIN: JTEGF21A52 Ac runs fine for a minute or two, then the Recirc button turns itself off by itself and compressor turns off. Then every 20 seconds or so, it will come back on and compressor will then work again with normal pressures. It has 3 codes, B 1241, B 1421, and B 142...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2009 Chevrolet Impala LT 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2G1WT57K89 To the people that helped thank you. As for the guys that felt the need to criticize me THANK YOU TO. I did say right from the start my scanner was limited and for those who asked yes i do have a wiring schematic. ended up a critter was chewing on the wiring n... Trouble codes: P0335, P0036, P0054, P0325.	12
	2005 Chrysler Pacifica Touring 3.5L Unknown VIN: 2C4GF68425 These engines have a huge problem with rings sticking in the pistons. There is some hope of a cheap fix by pulling plugs and soaking over night with a decarb solution. I would think that a regular hot flush before the oil change could also solve allot. I am gu...	5
	1998 Dodge Dakota SLT 5.2L Misfire VIN: 1B7GG22Y8W Hello everyone and thanks for the help on this one. This vehicle turned out being a plugged up in tank filter. The customer had a secondary tank in the back of the bed that looked like a tool box. Water had gotten in it and he had not used it in a long time...	21
	2007 Dodge Nitro SXT 3.7L A/C system VIN: 1D8GT28K47 Thanks for all the replies. This one had me stumped. It turned out to be the condenser.It was marginly plugged . I took it out and refushed it and changed the drier again. That did it. The top was cool and the bottom was hot.Thanks to all for all your help me...	24
	2005 Ford Explorer Sport Trac XLS 4.0L drive shaft VIN: 1FMDU77K85 There has been no update on the Ford Sport Trac. The driveshaft was replaced with the updated shaft 13 months ago. We have put the truck on a 4 post hoist so the driveline is not hanging. No one dropped the shaft. All the responses I received were right but I ...	6
	2007 Ford Expedition Limited 5.4L Misfire VIN: 1FMFU20507 Replacing the cam phaser on the left side fixed the problem, im not going to throw Dorman under the bus for having 3 bad phasers I think most likely we could have been a little easier on the phasers during instalation. Thanks for all the help its so hard with ... Trouble codes: P0349 (Camshaft position sensor bank 2), P0345 (Camshaft position sensor bank 2).	10
	2012 Ford Focus S 2.0L MIL Lamp on Thank you to all those who tried to help. I back probed the pressure sensor and found I indeed had reference voltage on the signal circuit to the computer, same reading at the computer. so what the scanner was telling me was what the sensor was reading. Upon ... Trouble codes: P0453.	14
	2006 GMC Sierra 2500 HD SLT 6.6L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GTHK23D96 Thanks all. EGR stuck open. replaced EGR valve and motor and now starts and runs fine. No codes returned Trouble codes: P0102 (Mass Air Flow circuit low voltage).	7
	2002 Isuzu Trooper Limited 3.5L Evap VIN: JACDJ58X72 Everything we test is coming out perfect. The customer doesn't wanna spend any more time/money on this cel that comes on every 2 months or 2000 miles.	4
	2000 Jeep Grand Cherokee Laredo 4.0L all windows VIN: 1J4GW48SXY I don't know how but disconnect and reconnecting battery solve the problem...I guess when open wire somehow crashed the bus...	7
	2006 Jeep Grand Cherokee Laredo 4.7L Tcc VIN: 1J8HR48N56 Thanks for all the replies. I found a TSB that applied to this vehicle for a reflash. TSB did not show up under search, had to manually look through TSB list. TSB is 18-018-10, referring to a hesitation between 35 and 48 mph, flash disabled tcc lockup in certa...	8
	1991 Lincoln Mark VII LSC 5.0L Brake bleeding/hard pedal VIN: 1LNCM93E2M We'll call this one fixed. Alldata said to charge the accumulator, you must leave the key on until the accumulator pump stops running (it does have overload protection built in, and will shut off on it's own after 15 or 20 minutes, so the pump doesn't overhea...	6
	1990 Mercedes-Benz 300E 2.6 2.6L Cuts out VIN: WDBEA26D4L SWAPPING IN A REPLACEMENT FUEL DIST. WITH REGULATOR AND AIR FLOW METER DID NOTHING TO IMPROVE THE PROBLEM. CUSTOMER HAS GIVEN UP ON FINDING THE SOLUTION. ( AT MY OWN TIM [...] EXPENSE, I WANT TO TRY BYPASSING THE MAS). FUEL PRESSURE READINGS STILL FALL WHEN MEASURE...	18
	2006 Mini Cooper 1.6L Engine VIN: WMWRC33526 Thanks to everyone who responded to me : Woo & Wayne were absolutely right this is a smart vehicle and after reseting the codes it is running good for a 5-10 min. then after detecting misfires its shutting down the fuel injector for the bad cylinder. Cu...	8
	2005 Nissan Altima S 2.5L No Start VIN: 1N4AL11DX5 a lot of people were talking about rpm signal. I did have rpm on scan tool (showed 300 rpm while cranking). some said chain a tooth off. I was going with that but customer declined tear down to verify so we'll never know. thanks for your input.	10
	1991 Saab 900 S 2.1L No Start, Poor Idle Quality, Hesitation, Cuts out, Poor Fuel Economy, MIL Lamp on VIN: YS3AK35EXM After second set of symptoms arose (high idle) re tested for vacuum leaks. Discovered Evap canaster valve was intermittantly sticking open allowing vehicle to pull excess vacuum through canister which was completely degraded internally. also found AIV leaking ... Trouble codes: 12225 (Pre heater circuit open), 12223 (Too lean), 12111 (O2 sensor self compensating circuit problem).	12
	2003 Subaru Forester X 2.5L Hesitation, Surge VIN: JF1SG636S3 Thanks again to iATN and all who offered help. Many of you mentioned that timing could cause this issue. One cam being off one tooth would cause it. We had removed the left timing cover and inspected the right cam through the inspection hole. Both cams... Trouble codes: P0420 (Po341-), P0341.	12
	2003 Suzuki Aerio SX 2.0L No Start VIN: JS2RC41H63 Thanks for all the input.Replaced cam sensor,car runs and so far other code has not reappeared. Trouble codes: P0340 (CMP position circuit), P0601.	10

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