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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 8, 2012
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Help Request Answers
1986 Chevrolet S10 2.8L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1GCCT14R0G
Hi IATN members. We have taken on a 1986 Chevy s-10 with a check engine light on and poor idle/runs rough. Didn't think it would be a problem. First uncovered 3 codes: 34-MAP Low, 44-Lean, 45-Rich. The rich and lean overlap was a little confusing, but we went ... Trouble codes: 43 (Esc not responding), 34 (Map low), 44 (Lean), 45 (Rich)
2001 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J01
has new pcm and 24x crankshaft sensor. tested passlock it is working fine, vtd fuel disable says inactive on data stream , shows 99% engine load koeo and 19ms. for injector pulse but no pulse signal at connector for injectors. HELP AM FRUSTRATED
2001 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Stall, Misfire, no power VIN: 1G1JC12401
customers says car loss power while driving,towed to shop.it will start but idles rough with no power like restricted exhaust.dropped exhaust no change.good fire,injectors check good,good fuel pressure.scanner shows po300 code.sensor data on scanner looks good... Trouble codes: P0300
2004 Chevrolet Silverado 1500 4.8L Windows , Locks, Mirror VIN: 2GCEC19VX4
Truck came in with a U1000 code and a U1041 which is non-communication between the BCM and a module. Nothing on the Passenger Door works except the speaker. The Lock, Mirror and Window all inop. from eather the driver's switches or the switches on the Passenge...
2008 Chevrolet Cobalt LT 2.2L radio and tpms and door locks VIN: 1G1AL58F78
after jump starting radio is inop tpms does not respond and door locks go up and down.girl left her gps pluuged in for several days and had to jump start.battery is good no fuses blown .I am hoping someone has had similar problems i can hear about before begii...
1997 Chrysler Town & Country LXi 3.8L Misfire VIN: 1C4GP64L0V
This vehicle has a very intermitent violent vibration seering wheel shakes up & down I believe it is a engine miss it has to be cruising at 55-65mph with torque converter locked and very light accleration if you acclerate or let off gas it stops hard to duplic...
2006 Dodge Ram 3500 SLT 5.9L Low Power VIN: 3D7LX38C96
Hey guys, hope someone can help with this one. This truck came in with a low power issue. I have scanned for codes and the only code is a p1753 and it is a pending code, there are no active or stored codes. I checked the basics, air filter was ok & I changed t... Trouble codes: P1753 (Transmission Throttle valvle performance)
2009 Dodge Ram 1500 SLT 5.7L no power brakes
Just your input if you ran into this...dodge says haven't sold one in a year.
1999 Ford Expedition Eddie Bauer 4.6L evap system VIN: 1FMRU1764X
the truck come whit p1451 and po443 i dit chek the sensor al the evap sensors are new so I did reset the CPU. and take for drive The light stayed off for about 5 mile but as soon as I turned the truck off and then back on the light came back on.. so i star c...
2001 Ford Taurus SE 3.0L direct clutch VIN: 1FAFP53211
Took this tranny apart and swapped up steels & plates. Didn't take a good methodical approach to rebuild mostly due to lack of room to be organized. will take more phots next time. Anyways, In my direct clutch, I am only running 3 frictions. Is this normal? A...
2002 Ford Mustang 3.8L Temp gauge goes in the red, sets a p1285 code VIN: 1FAFP44422
hello from soggy florida. I have this 3.8 mustang which showes to be over heating on the interstate. and sets a code p1285 "excessive temp". I can look at the pid on my scanner and it showes 250deg and the guage is in the red. I check the engine temp @ the w...
2003 Ford Focus ZX3 2.0L no turn signals VIN: 3FAFP31343
Hey guys I have a bit of an odd one in my bay right now. This focus has no turn signals. I can get them to work when I unplug the GEM let it sit for a few min and plug it back in so long as I leave the key on. When I cycle the key of and back on some times the...
2005 Ford E-350 Super Duty 6.0L No Start VIN: 1FTSS34P05
Hello, This vehicle is a used van for sale. Possible buyer would not purchase without the Service Engine light out. Seems to run well. After some testing, I decided to replace the EGR Valve. After completing repairs, The van started up ran for approximately 15... Trouble codes: P0299 (Turbo under boost), P1335 (EGR Valve Position Min-Max Stop Performance), P0272 (Cylinder 4 Performance)
2005 Ford Explorer Sport Trac XLS 4.0L Vacuum Lines VIN: 1FMZU67K55
While checking this truck over for a no start, I noticed a red vacuum line that's not attached to anything. It's located on the right side of the engine, running close to the fuel rail, and just stops behind the alternator. I can find nothing close to it, that...
2007 Ford E-350 Super Duty XLT 5.4L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FBNE31L97
Hey Fellas, Rick at Martins her in Forney Texas. Good Day to all.Ive searched archives and every thing else. this is the first time ive been able to really make much of a contribution to this site. After reading all the posts most said ck. harness around egr v... Trouble codes: P0304, P0316, P0600, P2105
1996 GMC K1500 Sierra SL 6.5L Excessive Emissions, Hesitation VIN: 1GTEK19S4T
Hi diesel guys I am not a diesel tech so I am looking on here for some details. This truck has the 6.5 Diesel engine in it, as you are at idel the truck is fine, no engine codes at all. when you are crusing down the road at 55mph you let off the throttle and g...
2006 GMC Savana 3500 6.6L Steering VIN: 1GDJG31206
Hi everyone, Thanks for your help. We have a cube van that intermittently steering goes stiff. It happens several times a day, usually when they are parking or at very slow speeds. We suspected the hydro-boost system but the pump and gear were both leakimg s...
1999 Honda Accord EX 2.3L MIL Lamp on VIN: 1HGCG6670X
I hated to Post this because it seems such an Easy Thing to be able to Diagnose But I have tried all i know and To gain as Much information as I Could, I Originally posted in Discussion Forums and had a Few Replies but they didnt repair the problem. After 2 k... Trouble codes: P1165 (A/F Ratio Sensor sensor 1 Performance)
2007 Honda Civic Si 2.0L Steering VIN: 2HGFA55597
Hey Honda guys, I have to ask if anyone has run into this problem before. My customer complained about a steering system noise when turning the wheel to lock and back again. The noise is a loud "clunk" that can be felt at the rack-n-pinion motor housing. It al...
1974 Jaguar XKE 5.3L flooding
Thanks in advance for reading this, I have this awesome V-12 4 speed, with a intermittent carb flooding condition, it is not isolated to one carb. It seems to happen to either rear carb. I have replaced all (4) carb needle & seats (set floats to 17mm)New meter...
1999 Jaguar XK8 4.0L Excessive Emissions, Misfire, MIL Lamp on VIN: SAJGX2040X
Customers xk8 was operating under reduced power mode. Customer shutoff vehicle, restarted a couple hours later and running good out of reduced power mode. Vehicle then went back into reduced power mode. Customer drove vehicle to shop but car was running good a...
2005 Kia Spectra EX 2.0L engine VIN: KNAFE12165
This car first failed the emission 2 years ago and it failed CO and NoX pretty badly and got a conditional pass, we recommended a cat. This time it has to pass to sell it. Any Kia experts or anybody that has seen this before please help.
1999 Lexus RX300 3.0L MIL Lamp on VIN: JT6HF10U6X
this truck got a p0171 code after the customer buy it (10 min later) so for the first time a cleared the code did a tune up spark plug timing belt water pump ,and let the customer go whit that.the light come on again the guy go to the dealer and they changed t... Trouble codes: P0125, P0171
1997 Lincoln Town Car Signature 4.6L electric window VIN: 1LNLM82W3V
1997 lincoln town car. passenger window inop.
2004 Mazda 3 S 2.3L timing cover VIN: JM1BK32324
Hello, I have this mazda that came in to us that was just at another shop, the customer through a rod and had some engine repair done, on test drive I noticed the engine had a nasty ping on take off and heavy cruise, also there was a lot of upper end noise aro...
2000 Mercedes-Benz C230 Kompressor 2.3L No shift/ Runs bad
Howdy fellow techs, I have this 2000 Mercedes C230 Kompressor that in the morning car will jerk and not shift, however after driving 2 blocks everything will run normal. No check engine codes, no transmission codes with SDS. Happens every morning with cold e...
2005 Nissan Altima S 2.5L 1ST gear engagement VIN: 1N4AL11D55
Car came to us for no engagement in D after cold soak. You can manually shift it to 1 and it will go in to gear and operate normally. Once the vehicle warms up, you can then put the car in D and it will shift normally. Reverse always works properly. Customer a...
2007 Nissan Murano SL 3.5L hp hose VIN: JN8AZ08TX7
Replacing high pressure power steering hose, the 10mm bolt mounting to intake manifold WAAAAYYYY up at the top is a pain. Wondering if the nissan guys remove the cowl and wiper panel to access this bolt? I'm trying to access it from below and think i'm going t...
2009 Nissan Versa SL 1.8L Poor Idle Quality, Cuts out, Stall VIN: 3N1BC13E49
This is a first time vehicle, and it was towed into the shop. The vehicle will start but dies after 5 secs or so. There is no throttle responce to keep it running. The injectors have pulse and the vehicle has good fuel pressure and spark. The vehicle owner say...
2006 Pontiac G6 GTP 3.9L Surge VIN: 1G2ZM55146
Condition not present when engine is warming up but once warm it starts a steady rythmic surge at a steady speed or on light acceleration. Occurs every 2-3 seconds. Seems to get worse the farther you drive. Feels the same with cruise on or off. No trouble code...
1986 Rolls Royce Silver Spur 6.7L oxygen sensor light VIN: SCAZN42A8G
quick question. How do reset the "OXYGEN SENSOR" LIGHT? I am fairly confident that it went on at about 30k. it is on at all times.
2008 Saturn Aura XE 2.4L Alternator VIN: 1G8ZS57B08
Vehicle came in with a no charging condition, no codes set. Alternator had already been replaced. Check wiring from pcm to alternator, the "l" wire (orange),the generator turn on signal, only gives the alternator 5 volts. If we jump it with 12 volts it charges...
2008 Smart Fortwo Passion 1.0L Starter VIN: WMEEJ31X88
Car was running down road and transmission came out of drive when coming to a stop .could not select any gears. Shut off car then tried to restart and engine wouldn't crank over. Have checked all fuses that i can find. No power going to solenoid when key is tu...
1998 Subaru Legacy Outback 2.5L Unknown VIN: 4S3BG6853W
all wheel drive subaru with a shimmy only while turning on acceleration from a stop. tried replacing both front axles but did not fix it. all tires are of the same size. if you accelerate straight it is fine.
2005 Subaru Forester X 2.5L MIL Lamp on VIN: JF1SG63625
Hello all, we have a Subaru here that is driving us nuts. This car has been acting up intermittently for the past 2 years. The owner has since retired and no longer commutes 2 hours a day, so we can finally look at this one in depth. Thankfully, she is an unde... Trouble codes: P1714 (Throttle Position Sensor Power Supply Circuit in TCM), 48B7
1991 Toyota 4Runner SR5 3.0L temp gage VIN: JT3VN39W6M
Trying to find connection between heater fan and temp gage this is a strange one for sure! Temp gage goes to cold when heater fan is turned on. So when temp gage is working voltage @ terminal A5 @ cluster is 7.5v and when the heater fan switch is moved to any ...
2001 Volkswagen Beetle GLS 2.0L Mechanical VIN: 3VWCB21C31
I am replacing timming belt and water pump on this 2001 v.w. beetle, and I do not understand the belt tensioning procedure. I am reading the procedures outlined from motoralldata. I do not understand how to get the pointers on the tensioner lined up by turning...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Chevrolet Express 3500 6.0L Turn Signals VIN: 1GCHG35U45
OK, Sorry for the long delay but I was out of commision with some medical issues. Anyway, I read and appreciate everybody's info and tried just about them all. We checked the bulbs and were correct. Checked and cleaned grounds. Replaced the flasher module- no ...
2005 Dodge Grand Caravan SE 3.3L Poor Idle Quality, Hesitation, Cuts out, MIL Lamp on VIN: 1D4GP24R55
The mating circle of the flexplate actually broke out completely and retarded 15 degrees before wedging itself to the point where it would actually turn the crankshaft during starting, R&R trans replace flexplate and fine. After the old one was on the floor a ... Trouble codes: P0016.
2005 Dodge Grand Caravan SXT 3.8L Cam sensor VIN: 2D4GP44L65
Thaks to all who spent time & responded.This one is fixed.I checked the CMP power & ground to the sensor,Everything looked OK.Then I captured a waveform & compaired the reluctor signiture to the old cam sprocket(The reluctor is part of the cam sprocket) The p...
2007 Dodge Sprinter 2500 3.0L Hesitation, MIL Lamp on VIN: WD0PE84557
vehicle runs fine turbo is operational just has a low boost customer does not want to put intakes on the vehicle to take care of swirl problem so we will see what happens next time i am probably going to go straight for the intakes to correct this issue Trouble codes: 2623 (Charge air sys. Drift idle), 2626 (Dpf Soot Content to high), 2513 (intake port swirl actuator possitioner error), 2953 (intake port swirl actuator open / sensor valve too low).
2003 Ford F-250 Super Duty XLT 6.0L Misfire, p0307 VIN: 1FTNX21P33
i finnally found the problem with this pile i had removed the intake and egr cooler looking to find possibly leaking egr cooler and found that some hack had installed a hp oil pump in doing so they had installed the egr cooler clamp before bolting the cooler ... Trouble codes: P0307.
2003 Ford F-350 Super Duty XLT 6.0L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1FTSW31P23
Thank you to all who took time from their busy schedule to reply. Suggestions ranged from the ever popular EGR cooler to Fuel aeration. The winner was stiction. Here is how I solved it with your help. First I did a complete data capture with IDS and also did i...
2004 Ford F-350 Super Duty King Ranch 6.0L oil VIN: 1FTWW33P04
Sorry for the short delay in the fix on my own personal truck.Shop work comes before my own stuff.I'm sure some of you have been there before.Anyways i tried an Icp off of a friends truck.No luck, i ended up going ahead and pulling the valve covers.Pulled the ...
2006 Infiniti G35 X 3.5L No Start VIN: JNKCV51F96
Thanks so much to George, that code worked like a charm. Car is up and running great. Does anyone know of any software that can be bought for a reasonable price to decode nats 6, If so please send me an email at [...]. I have to tell yo... Trouble codes: P1610 (Nats locked), P1611 (Bcm-ecm mismatch).
2005 Isuzu N NQR 5.2L Hesitation, Cuts out VIN: JALE5B1645
Shockingly I only got one response back on this one but thanks anyway. This truck had a problem with the wiring harness going to the VSS.
2004 Jeep Grand Cherokee Limited 4.7L Failed smog test VIN: 1J8GW58N24
Appreciate all the suggestions. Checked test port and found no leak. Fuel level was 3/4 when tested and temp was within the specs provided (thanks). Fill the tank to full level, once again cleared memory and drove extensively and scanned. All monitors set ...
2002 Kia Rio Cinco 1.5L Accessories VIN: KNADC16302
finally i take the time to past all the terminals one by one whit a small pic and clean it whit contact cleaner and my problem is gone thanks again.
2006 Kia Optima LX 2.4L blower motor VIN: KNAGD12676
1991 Lexus LS400 4.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
thanks for your input, it was the maf sensor, the way i knew was while i disconnected the maf i was watching the readings on the smog machine it did not had any effect on the fuel, again thank you Trouble codes: 25 (too lean), 26 (too reach).
1994 Lexus LS400 4.0L No Start VIN: JT8UF11E0R
1991 Mazda Miata 1.6L Clutch VIN: JM1NA3510M
I appreciate all the replies! I did replace the clutch master, as suggested, and got a good pedal. The tip about crank bearings/thrust bearing was a great one, I'd not thought of that all all.
1999 Mercedes-Benz SLK230 Kompressor 2.3L MIL Lamp on VIN: WDBKK47F4X
Check engine light returned after customer drove vehicle 85 miles. Vehicle has not yet returned to see what code(s) are present. Last repair we replaced fuel vent valve due to having fuel remains inside. Check engine light returned with low level fuel light fl... Trouble codes: P0455 (purge control system major leak or voltage supply of fuel pressure sensor), P0460 (Fuel level sensor).
2005 Mercedes-Benz E320 CDI 3.2L Poor Idle Quality, Hesitation, Surge VIN: WDBUF26J25
Thanks to Chris and Mukesh taking the time to help. Aparently this is a very sensitive fuel system. It doesn't like contamination. Replacing the fuel filter was a common theme in responses and my google search results. I did that, but still would set the p0192... Trouble codes: P0192, P0652.
1999 Mercury Cougar 2.5L No Start, Stall, No Communication VIN: 1ZWFT61L4X
Thanks for all the help. Out of coincidence I noticed a relay popped up a little higher than the others. Looked it up and it was a pcm power relay. Duplicated the issue by pulling relay and I had full battery power but no crank. As soon as it was back in, it w... Trouble codes: B2157, B2156, B2154, B2153, P0750, P7565.
2004 Mini Cooper 1.6L power steering pump VIN: WMWRC33484
What I found when loading the charging system with the power steering pump the charge rate would drop below 12 volts and the alternator gave off a burning smell.We replaced the alternator and checked all the wiring from the pump to the alternater ,oil pressure...
2003 Mitsubishi Galant ES 2.4L mil not on VIN: 4A3AA46GX3
thanks for all the advice. turns out that the tone ring on the end of the cam was incorrect. the two windows are different sizes on the one in the car, and the correct one the two windows are the same size. that makes total sense because when i scoped the sens...
1997 Nissan Maxima GLE 3.0L Misfire VIN: JN1CA21D4V
2003 Nissan Altima 2.5L No Start, Poor Idle Quality, Stall VIN: 1N4AL11D43
I found the aftermarket MAF sensor to have a defective IAT sensor. with the OEM MAF sensor the MAF code would return. I found the ECM was defective installed new ECM and vehicle was fixed, thanks for the help
1987 Porsche 944 S 2.5L All Electrical VIN: WP0AA094XH
Thank you for all the great input, We did however decide to proced As decided in house, next step was removal of complete wire harness noted, what seems to be a dead short behind the new water pump install, once the pump is off, this will more then likely ...
1990 Subaru Legacy L 2.2L Timing VIN: JF2BJ63CXL
Thanks to all that responded to my sheepish call for help. Pride was keeping me from asking until I just had to ask. I was very fortunate to have dodged a bullet that I did not bend some valves. Most replies had may answers I needed to fix the car.Duane [...]...
2006 Toyota Sienna LE 3.3L Misfire, MIL Lamp on VIN: 5TDZA23C46
Hello again. Well this is one for the books, kind of. Thanks again for all of the ideas. Decided to take some advice and try to isolate the cylinders and disregard the misfire data on the scan tool. As I would force a misfire on the same banks as #5 i.e. 1 and... Trouble codes: P0305, P0300, P0171 (Fuel system too lean Bank 1), P0174 (Fuel system too lean Bank 2), P0121 (Throttle/pedal sensor switch A circuit range/performance), P0420.
2007 Toyota RAV4 Sport 3.5L engine VIN: JTMBK32V87
i decieded to drop the whole thing out the bottom like most of you said. its not really a bad job just a little time consuming because the subframe is 4 pieces and the four bolts that hold the frame together in the front also hold the frame to the vehical so y...
2003 Volkswagen Jetta GLS 1.8L Timing Chain VIN: 3VWSE69M43
Vehicle is fixed. The best way to repair was from Bosnia. Thank you. Had a friend weld a patch to the cover(he's making his living welding art.) replaced cam seals, Timing Chain and tensioner cleaned and checked everything, (old chain was 1/2 longer oold tensi...
2001 Volvo S40 1.9L Engine, Body, Eletrical VIN: YV1VS29591
Well, I have tried all that you have suggested. I guess I will just try replacing the ECM and hope it works... Unless anyone has a better suggestion? ECM is $750-$800.00...
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