Automotive Technicians Technical Discussion and Fixes for Oct 9, 2012

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	Help Request	Answers
	1995 Acura Legend L 3.2L MIL Lamp on VIN: JH4KA7669S got this legend that came in for no check engine light during bulb check. found that the bulb had been removed. installed new bulb, started up and check engine light on right away.multiple codes stored, cleared codes and code 1 O2 sensor left side returned. ch... Trouble codes: 1 (left heated o2 sensor)	View
	2003 Acura TL 3.2L Electronic VIN: 190UA56653 Came in with P1709 code, D4 and D5 lights had been flashing when vehicle cold and customer said it had a pause when put in gear and wouldn't go up her driveway. Shut down and restarted and worked OK. We cleared codes and had symptoms for a short time when cold...	View
	2002 Audi A6 Quattro 2.7L MIL Lamp on VIN: WAULD64B52 I check for vacuum leak or loose hose; the only thing I found leak was the hose splitting from the secondary air injection going to the right combi-valve had a crack and both combi-valve leak. These three thing I will be replacing, but would you guys suggest a... Trouble codes: P0491, P0492	View
	2011 BMW 328i 3.0L trunk VIN: WBAKE3C57B this vehicle can to us from a body shop with a front end collison and the battery is dead we supect the battery cable is blown due to the front end collison therefore we can not power up the car from jump post under hood we are trying to get in the trunk to ch...	View
	1997 Chevrolet K1500 Cheyenne 5.7L Misfire VIN: 2GCEK19R5V Vehicle came back yesterday with multiple cyl. misfire code and had a feeling the (reman)injector unit went bad and used a bore scope to confirm the fuel pressure regulator was leaking bad.Replaced with a Delco unit and all was well except a cyl. 3 misfire on ... Trouble codes: P0300 (Multiple misfire)	View
	2000 Chevrolet Suburban 1500 LT 5.3L rattle noise on rail VIN: 3GNFK16T5Y Good afternoon group, this Suburban has a buzzing or rattle type noise coming from the fuel rail at the fuel pressure regulator on the return line only at idle. I remove the vacuum supply line to the fuel press. reg. and the noise goes away and while driving, ...	View
	2001 Chevrolet Suburban 1500 5.3L front vent outlet air temp VIN: 3GNFK16T71 i need to know what these temp sensors should be reading and how close the temp should be to the auto dial from the output temps	View
	2007 Chevrolet Equinox LS 3.4L Starting VIN: 2CNDL13F57 I have an Equinox that was towed in and wouldn't shift out of park or allow you to turn the key to the off position. Also, when key is turned to crank, vehicle won't crank. No security light and no security codes stored. I have not been able to communicate wit...	View
	2001 Chrysler Sebring LX 2.7L MIL Lamp on VIN: 1C3EL45U01 Thanks in advance for any help you can give me. . Car came in with 2 trouble codes, p0172, p0175 bank 1 & bank 2 rich. (my scanner defines them as system lean for some reason) customer had replaced both post-cat o2 sensors after a "diagnostic" at autozone. We ... Trouble codes: P0175 (Bank 1 system rich), P0172 (Bank 2 system rich)	View
	2004 Chrysler Concorde LXi 3.5L lights VIN: 2C3HD36M04 after month customer comes back in with same complaint lights flickering and battery light flashes we check charging system ok check codes comes up with p0653 battery voltage high. we can never duplicate problem.we drove for days no problem .the customer only ...	View
	1999 Dodge Ram 2500 5.9L Seat Belt Retractor Solenoids VIN: 1B7KF2362X Batteries go dead after a couple of days. There is an 800mv draw on the batteries. When the Integrated Electronic Control Module is disconnected the seat belt solenoids release and the battery draw goes away. Have checked both door switches, both operate corre...	View
	1998 Ford Crown Victoria 4.6L fuel pump, spark, noid spark VIN: 2FAFP73W5W the car was towed in for no start. first checked for fuel pressure had none, so i checked the fuel pump for power and had none. tried to hook up the snap on verus and would not communicate with the ecm but i could get a memory code for u1147 scp invalid or mis...	View
	2005 Ford Freestar SE 3.9L Steering Wheel VIN: 2FMZA51695 I have a steering wheel I want to remove, but it is not cooperating. Alldata says to remove rack bolt in steering wheel, but it comes part way loose, then gets tight. Due to tightening torque specs, I don't want to force the issue. I am wondering if any of you...	View
	2006 Ford Explorer Eddie Bauer 4.0L r/side cam chain guide VIN: 1FMEU74E26 right side cam chain guide. the outer guide appears to be held in place by only a wedge action between casting and chain. is this correct?? the inner guide (towards engine center) has a bolt. outer guide (away from engine center) does not.	View
	2007 Ford Fusion SEL 2.3L Movement VIN: 3FAHP08Z57 Firstly this is the FNR5 5 speed transmission. Ok so we replaced this transmission 10 months ago due to oil pouring out of the torque converter seal. So last week it came here with engine light on and slipping into 4th gear. Were busy so he was to come back in...	View
	2005 GMC Yukon XL 1500 SLT 5.3L Radio VIN: 1GKFK16Z25 This truck came in about 8 months ago with an intermittent whistle noise coming from the radio. The noise was not present the day it was here. Checked the charging system,battery and connections. The alternator started to fail about 3 months ago and was replac...	View
	2008 Honda Fit Sport 1.5L D light flashes VIN: JHMGD38678 Got a 2008 Honda Fit that intermittently has the D (for drive) light flashing. Scan for dtc's and have a U0121 come up. I have been through the diagnosis 3 times. Every time leads me to try a known good PCM. The PCM has been updated to the latest calibration (... Trouble codes: U0121 (loss communication from ABS control module)	View
	2005 Jaguar XK8 4.2L Radio, window VIN: SAJDA42C35 This car is already the subject of another post re. its cooling fan system. These issues are additional. The right side door window will lower itself a small distance as designed to clear the weatherstripping whilst opening the door, just as the left side does...	View
	2001 Lexus ES300 3.0L pcm VIN: JT8BF28GX1 Hi every body. I hope every is ok. I need yuor help if possible, in this one. It's about a 2001 LEXUS with 3L. engine that came to the shop for a state inspection but with the check engine light on with code po330 for bad knock sensor; After changing both sens...	View
	2004 Lincoln LS 3.9L Fans, hydraulic VIN: 1LNHM87A74 Customer stated: hears roaring sound and thought engine was racing. Hydraulic fans on @ high speed is what he hears! Regular customer, car well maintained and clean. Recently replaced all plugs and coils due to P30X codes and had trans rebuilt approx 6-8 month...	View
	1991 Mercedes-Benz 560SEL 5.6L Hesitation VIN: WDBCA39E2M I have ths Benz that was surging missing while driving, and when accelerating from a stop it will bog out. I replaced the wires and the plugs, the feul filter and a leaking EHA valve the eninge runs good but it still bogs down and can stall out when giving it ...	View
	1997 Mercedes-Benz E420 4.2L backup (reverse) lights VIN: WDBJF72F9V Hello to all u mercedes techs out there. This car came in to get checked for state inspection and had no reverse lights, have checked all fuses and bulbs and all is well. Here comes the fun part...no juice coming from illumination control module(N7-1), somedat...	View
	2009 Mercury Mariner 2.5L MIL Lamp on VIN: 4M2CU81799 Vechile came in today after being driven about 100 miles, Ck Engine Light code PO451 was again inplanted, proceded with smoke agian... Found Smoke protruding from "CAPLESS Quick Fill" Filler Neck... Ordered new ford part and installed. Now the system wont clea... Trouble codes: P0451, P0456	View
	2006 Saab 9-3 2.0T 2.0L Hesitation, Cuts out, Stall VIN: YS3FD49YX6 Wiring, from what I can see and able to check without tearing apart the car appears ok, nothing swollen or broken, really dont want to wait another 3 months for a warranty pedal from dealer again. Is there a "common" wiring short with these that is anyone awar... Trouble codes: P2135 (Throttle Pedal Position Sensor A/B Voltage Correlation), P0638	View
	2008 Saab 9-3 Aero 2.8L MIL Lamp on VIN: YS3FG7AY88 Not positive about VIN-I wrote down [...] but iATN's system didn't like it, so I tried to make one according to WIS, but that didn't work either. MIL was on for a few days last week, but went out over the weekend. The customer brought the car for ... Trouble codes: P0089	View
	2008 Suzuki Forenza 2.0L air bag system VIN: KL5JD56Z88 would like to know if any suzuki techs have seen a common problem with these air bag trouble codes. my scanner is not much help with these. thanks in advance.have not run any resistance tests	View
	1991 Toyota Camry DLX 2.5L Poor Idle Quality VIN: JT2VV21E8M Car starts around 1200 rpm and gradually goes down to normal idle @ 700 rpm. But now while engine pretty warmed up,idle keeps drifting down to 400 RPM. By now engine is up to normal temp and thermostat has opened. Will stay at 400 rpm for around 10 minutes. Th...	View
	2003 Toyota Sienna CE 3.0L Brake Pedal VIN: 4T3ZF19C03 We have been unable to get a good brake pedal on this van. Pedal goes almost to the floor. We replaced rear cylinders due to leakage (minor). Pedal was low, we bled system to no avail. Replaced master cylinder with new oem part, bled cylinder & then wheels aga...	View
	1992 Volkswagen EuroVan CV 2.5L Coolant Light VIN: WV2PC0707N Good Morning, This EuroVan is a grey market vehicle from Canada that I have had a difficult time finding info for. The coolant light will start to flash after 2-3 minutes from a cold start, or sometimes not until after a 25 mile drive. The engine is not overhe...	View
	2006 Volkswagen Jetta 2.5 2.5L Misfire VIN: 3VWSF31K36 This vehicle came in running rough at idle, misfing at cruise. Replaced valve cover cause 15" vacuum at dipstick tube, traced to breather failure, but still misfire at cruise. Suspect timing chain issue, Checked Block 093,channel four, should be 0 degrees +-5,... Trouble codes: P2279 (Po300-), P0300, P0302, P0303, P0304, P0305	View
	2003 Volvo S80 T6 2.9L MIL Lamp on VIN: YV1TS91Z43 This Volvo sets the 130a code repeatedly. You can clear it but it comes back in 5 miles. The fuel trims look OK to me, the Lambda readings are all close to 1.000. They do fluctuate a little above and below but I expect them to do that. 2 pids that I do questio... Trouble codes: 130A, 271A, 261A	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 BMW 320i 2.2L engine Once again thank you all for the replies. customer decided to go with a used engine. Up and running changed all the fluids. I showed her several answers which helped make up her mind I believe she plans on selling it but who knows. I must apologize to you all ...	21
	2000 Chevrolet Camaro Z28 SS 5.7L Excessive Emissions VIN: 2G1FP22G6Y Customer left after spending an entire day of us trying to diagnose this problem.We never figured out why the computer wouldn't turn on the EGR.He mentioned during the course of the day about getting a "special" smog,I imagine that's what he did. Trouble codes: P0410 (Air injection pending), P0405 (Egr sensor low volt history), P0410 (Air injection pending), P1416 (Air injection bank 2 history).	11
	2003 Chevrolet Trailblazer LTZ 4.2L MIL Lamp on VIN: 1GNDS13S73 After testing all wiring I came to the conclusion the throttle body is was the problem. Could never get the problem to duplicate and informed customer of that. I recommened TB & customer agreed. Have test drove and checked. No Problems Trouble codes: P1271.	4
	2003 Chevrolet Impala LS 3.8L Stall VIN: 2G1WH52K83 daughter has now gone home with vehicle. Has not acted up lately after several drives so hopefully it is fixed. I suspect it needed to relearn the idle position after the throttle body was removed and cleaned. 1 reply suggested doing an idle relearn. Most s...	21
	2006 Chevrolet Cobalt LS 2.2L idles too fast VIN: 1G1AK55F36 Thanks again for the replies. After driving the car nearly 100 miles I gave up and took it in to GM for PCM reprogram. All is now well, in fact I think it runs a little better than it used to. Interesting side note: I found only one fix in iatn database which ...	7
	1955 Chrysler New Yorker 5.4L Master Cyl. VIN: N5543787XX Many replies said to use a pressure or suction bleeder. Some said to check the residual ck. valve located behind where the line goes into the master, but I had already dismantled cleaned and reassembled it twice. We ended up using a sterile large plastic syrin...	8
	2001 Chrysler PT Cruiser 2.4L No Start VIN: 3C8FY4BB31 Sometimes it is better to be lucky than good!. Josh and John nailed it. I had been over and over this thing. I found the pci wire to the radio pinched between the radio and the metal housing and thought I had it. No go. I found the harness about a foot from t...	18
	2007 Dodge Charger R/T 5.7L converter? VIN: 2B3KA43H27 Sorry for taking so long to close,The problem seems to only occur when you are slowing down around 20,25 mph.Does not happen in manual shift mode.My local trans guy believes one of the clutches is slightly slipping.Hi dollar rebuild.We were running the car as ...	2
	2002 Ford Escort ZX2 2.0L Poor Idle Quality, Check Engine Light VIN: 3FAFP11302 We replaced the oxygen sensor and so far the customer has not had the check engine light come back on. The other thing the cust. told me was that the light may not come on for several weeks. I should have been more specific that we were looking for help with ... Trouble codes: P1131 (O2 Sensor Bank One Sensor One Indicates Lean).	15
	2005 Ford F-350 Super Duty XL 6.8L No Start, Stall, Misfire VIN: 1FDSF35Y35 First thanks to everyone that replied. I finally got this vehicle to act up while driving and notice an abrupt drop in fuel pressure which would immediately correct itself. Pulled over to the shoulder of the highway and let idle the pressure started to fall an... Trouble codes: P0300.	5
	2008 Ford Expedition XLT 5.4L Rsc/Tcs VIN: 1FMFU16558 Well, replaced the sensor cluster as most suggested and the steering wheel angle sensor because it was cheap. Was never able to reproduce the condition myself so only time will tell if repair was succesful. Thanks all for the input.	5
	2000 GMC Sierra 1500 SL 5.3L high steering effort VIN: 2GTEK19T5Y first of all thanks for your time and help. we disconnected the gear box and tie rods to test front suspension and steering colum joints for binding. ball joints had some rough spots during rotation.. so we replaced upper and lower ball joints. the steering ge...	9
	2002 Honda Accord LX 2.3L Transmission VIN: 1HGCG66502 Well, It was just as everyone said- just plain bad trans . The salvage yard is getting the one unit rebuilt and well guess who eating the labor? I should get car back in a few days to switch units AGAIN! Thanks to everyone for their help and advice. Steve L...	11
	2004 Honda Civic Hybrid 1.3L tcm VIN: JHMES96674 thanks to the ones that actually knew what i was working on. on the civic hybrid 04 it has a separate cvt tcm that is plug and play. nothing special to program. installed a used one and walaa i have communication again.	7
	2003 Hyundai Sonata 2.4L Alternator VIN: KMHWF25S93 special thanks to [...] from alabama for idea to get on track. Anyway found 6,500 ohm of resistance across charge indicator and a voltage drop of .8 volts inside cluster when i had posted help request i had denoted this .8 volt drop in the light circuit i bel...	10
	2007 Infiniti G35 X 3.5L downshift VIN: JNKBV61FX7 Thank you for all the responses. Everyone mentioned that the symptoms described are normal because this vehicle uses an Adoptive Shift Control program designed to improve performance during cornering, inclines and declines. I am very familiar with ASC operatio...	6
	2005 Jeep Liberty Sport 2.8L cylinder head VIN: 1J4GL485X5 Thanks to all who replied.I found that valve action(opening and closing)is being opposed by heavy carbon deposits,causing slack in the lifter/roller,rocker assembly.This in turn is causing it to spit the roller/rocker assembly off the valve.I would like to be ...	5
	2007 Kia Rondo LX 2.7L Misfire VIN: KNAFG52697 Well Nick was right rear cam was 1 tooth off from a previous timing belt install done at another shop.Thanks for all the replies and ideas. Trouble codes: P0300 (Multiple cyl. Misfire), P0301 (Cyl 1 misfire), P0303 (Cyl 3 misfire), P0305 (Cyl 5 misfire).	9
	2008 Nissan Rogue SL 2.5L Coolant Change VIN: JN8AS58VX8 i found what i was looking for...a local shop with a flush machine that uses fresh coolant of your choice ( randy [...] had the best ( all data ) answer to manually do it but the flush machine is the way to go there is a good video demo on line of the coola...	6
	2000 Volkswagen Beetle GLS 1.8L cooling fans VIN: 3VWCD21C7Y Large 4 wire fan replaced. We replaced this fan last year, apparently it is going bad again. With new fan the amperage draw is 14.2 on high speed and 9ish for the small fan. This is keeping the draw low enough not to stress the fuse block.	16
	2008 Volkswagen Passat 2.0T 2.0L engine VIN: WVWAK732C8 THANKS FOR ALL THE HELP.IT WAS A DOWEL PIN IN THE END OF THE CAM HOLDER TO SUPPORT THE CHAIN GUIDE.	3
	1999 Volvo V70 2.4L No Start, MIL Lamp on VIN: YV1LW55A7X Well, this particular story has reached a conclusion, as far as I am concerned anyways. Thank you all for all of your replies and useful info. The customer's fiancee decided to have the vehicle towed to another shop, and NOT to the dealer as I suggested. I ... Trouble codes: P0181 (Immobilizer Communication Fault), P1054 (Faulty Speed Sensor Signal).	13
	2001 Volvo V70 2.4L Input Speed Sensor VIN: YV1SW61R51 Well I'll start with the fact that the new, updated speed sensor assembly fixed this. Volvo # [...] eliminates the double sensor and harness assembly and replaces it with two individual sensors and a seperate harness so that now, they can be replaced indiv...	10

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