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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 22, 2011
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2003 Cadillac CTS 3.2L timing VIN: 1G6DM57N73
Vehicle came in with a broken timing belt. Later found out all the exhaust valve where bent. Had heads rebuilt. re-assembled heads and replaced timing belt. Started vehicle had misfire and lacked power. Acted like timing was off retarded. Torn back down and ch...
1998 Chevrolet S10 LS 4.3L slips after kick down
after kick down this truck is in coast till the throtle is lifted to idle, can bang on the rev limiter til you lift. trans rebuilt, new converter, all new electrics, new valvebody.
1998 Chevrolet C3500 Cheyenne 5.7L starter VIN: 1GBJC34R3W
key in on position starter cranks continuously pull starter relay still cranks turn key to start position sends ground fuel pump doesnt come on either
1999 Chevrolet Silverado 1500 5.3L No Start VIN: 2GCEC19T9X
Merry Christmas to all, This was a tow in,cranks , no start,no fuel pressure or spark. I noticed right off that the CEL was not on and the fuel pump would not fire up. I was able to pull several o2 codes though which surprised me since the cel was not on. I c... Trouble codes: M1SC
2006 Chevrolet HHR LT 2.4L MIL Lamp on VIN: 3GNDA23P86
Thank you in advance for your time. There is an 06 Chevy HHR in here and has check engine light on and no reading on temp gauge. Customer says he will be driving and the gauge dies and the light comes on. Also when this happens remote start doesnt work and a/c... Trouble codes: P0128
2007 Chevrolet Suburban 1500 Z71 5.3L Ebcm VIN: 3GNFK16357
This 07 Burb' will not leave our shop, no matter what I try. Since I don't have a tech 2, I suspect I will need one to remedy my issues... of course. Initially I replaced the speed sensors under warranty that another tech had done. When I did not get my speeds...
2007 Chevrolet Trailblazer LT 4.2L abs module VIN: 1GNDT13S37
no communication with ebcm abs light on power to ebcm ok tried new module can not communicate to program either
2007 Chrysler Sebring Touring 2.4L 4-3 downshift VIN: 1C3LC56K47
The car car has a intermediate hard downshift from fourth to third when the engine is hot and coasting at light throttle . At times on a cold engine idle speed will almost stall. Also at light throttle 30-40 MPH and 1500 RPM at steady throttle RPM will vary ap...
2006 Dodge Charger R/T 5.7L Stall VIN: 2B3KA43H06
Replaced engine in police vehicle. All seemed to be ok. The car returned with a complaint of intermittent dieing. No codes in memory and could not duplicate. Vehicle returned again still with dieing complaint,still no codes, but added it has twice just acceler...
2008 Dodge Grand Caravan SXT 4.0L wipers VIN: 2U8HN54X58
after driving vehicle and sitting for aprox 1 hour . when restarting wipers will run and all gauge needles will sweep. unable to shut wipers off unless battery is disconected. sometimes while driving also and lights will dim.
1993 Ford F-150 XL 5.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, excessive idle speed VIN: 1FTEX15H3P
In need of some Ford help!! This truck came in with the complaint of high idle, hesitation, and jerking. After test drive it was definitely idling too fast (about 1500)and it felt like EGR was flowing too early or too much. Hooked up scanner, no codes, however...
1997 Ford Mustang 3.8L Clutch VIN: 1FALP4043V
Hello fellow techs, I have replaced the clutch on a 1999 Ford Mustang and I am about to let this one out of the shop; however, the main mechanic states that he recalls having to make an adjustment on the clutch cable when the clutch is replaced... Now, I onl...
2000 Ford E-450 Econoline Super Duty Custom 6.8L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FDXE45S3Y
Happy Holidays to all, I have a 2000 Ford E450 V10 that is running extremely rich and has multiple misses. The Computer shows the system Lean, but the Injectors are wide open and the cat turns red from the fuel. Fuel pressure and back pressures are ok. I smoke...
2006 Ford F-350 Super Duty XLT 6.0L Surge VIN: 1FTWW31P46
This truck surges above 1500 rpm all the way up to WOT. It feels like it is corked up and then releases, and then repeats every 3-4 seconds. It surges whether in neutral or driving and the surge is roughly 200-300 rpm. Can really feel it at light acceleration....
2009 Ford Ranger XLT 2.3L Excessive Emissions, Hesitation VIN: MNAUSFE909
Diesel techs! i need some help! i have got a 09 ford ranger now it is a 3.0l TDCi not the petrol as listed there is no listing for the diesel, but anyway... the particular vehichle has got no mil on, no codes, but has got no power after 2300 rpm, put the clutc...
1996 GMC Sonoma SL 2.2L Excessive Emissions, Poor Idle Quality, Surge VIN: 1GTCS1440T
Could someone help me on this, its really being a tuff one. The truck has a lopey idle, and if you open the throttle it will kind of stall out. I found the brake booster hose with a huge crack in it and a vacume leak, I thought for sure this would fix it but i...
1999 GMC K3500 Sierra SL 7.4L 2nd gear VIN: 1GDJK34J8X
truck will start off in first and shift fine for about 5 min then it looses controll of the epc solnoid it drops off to 0 percent and 0 amps on my scanner . it then starts shifting hard and neuturals out in 2nd causing it to down shift into 1st again . if you ...
2004 GMC Sierra 1500 SLE 4.8L Misfire VIN: 2GTEK19V74
Car came in with random misfire code, misfires on 6 mostly and some on 5 but they are right next to each other in firing order so I have dismissed #5 misfires. Unplugging coil to 5 does drop RPM, unplugging #6 does not. I have performed cylinder balance test w... Trouble codes: P0300
1990 Jeep Cherokee Limited 4.0L Stall VIN: 1J4FJ78L1L
This jeep came in for no start a month or so ago we checked and replaced the ignition module.That fixed the no start and was fine for about a month, does not get driven much though.Now it is back it sometimes be fine for days but when acting up it will cut off...
1993 Lexus LS400 4.0L Excessive Emissions, No Start, Cuts out, Stall, engine kickback VIN: JT8UF11E0P
Thanks for any help on this one because she's a fun one. Car came in on a hook. Cust states that car would shut off while driving but always restart. The dash lights are flickering and sometimes inop. Car would not accelerate at all you could start it put it...
1995 Mercedes-Benz C280 2.8L coolant contaminated with oil VIN: WDBHA28E0S
Hey Merc experts, This on came in with a coolant reservoir full of milk shake. Looking at the archives for the previous years it seems that there were alot of head gasket issues that cause this. I was wondering if the 95 and later years had this same issue bec...
1996 Mercedes-Benz C220 2.2L No Start VIN: WDBHA22E9T
Hi Everyone I have a real beast here this car came in with a bad motor.motor has been replaced and will not start the car cranks and will not fire.The red and green led lights on the dash flash alternatly leading me to believe the immobiliser is the culprit.Th...
2002 Mercedes-Benz C240 2.6L No Start VIN: WDBRF61J82
Vehicle towed to shop for no start customer replaced fuel pump drove a week fuel pump quit customer bought rear fuse block in trunk I replaced fuse block as requested and replaced fuel pump again vehicle know has 45lbs fuel pressure has injector trigger had sp...
2009 Nissan Pathfinder SE Off-Road 4.0L door locks, key fobs VIN: 5N1AR18BX9
This car intermittantly will not lock/unlock with key fob. seems to be worse with key off, sometimes you can lock 5 times in a row and sometimes not at all for a few minutes. have already tried new remote, new bcm and new keyless entry receiver. when monitorin...
2012 Nissan NV2500 S 5.6L Accessories VIN: 1N6AF0LY7C
Our customer who is a locksmith has just purchased this vehicle and wants to add an on-board AC generator to run some of his accessories for job site service. He currently has several older Dodge 1500 series vans that have a generator type of system and runs a...
1990 Plymouth Laser RS 2.0L Misfire VIN: 4P3CS44U2L
Vehicle arrived at my shop running on two clys. Performed all the standard diagnostic's Checking spark at plugs, perfomed compression test, all clys good. Removed top cover and inspected cam timing,OK Hooked up lab scope to Injectors and cam and crank sensors ...
1998 Subaru Legacy Outback 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4S3BG6853W
Help! This Subaru came in with p0301,p0303 codes, rough idle. We verified concern, tested cranking compression (175 both cylinders) running compression (110 both cylinders) swapped injectors, tried new injectors, tried new coil, plugs and wires- no change. Che... Trouble codes: P0301, P0303
2002 Toyota Sienna CE 3.0L Horn VIN: 4T3ZF19C52
my own car. looking for help intermittent horn inop, push and nothing turn wheel and repaet okay, also okay after turning on lights then pushing horn. sounds like a ground problem to me. but i cannot get a lasting fix is there a updated ground connection? the ...
1981 Volvo 245 GLT 2.1L Stall VIN: YV1AX4522B
I'm not actually working on this vehicle but am looking for help for a friend that has previous Volvo experience. Any thoughts or suggestions would be greatly appreciated. Problem is irratic but seems to occur mostly when it is hot outside. A very long crank ...
2001 Volvo S40 1.9L Monitors VIN: YV1VS29521
Customer brought car in for a smog inspection and it failed for incomplete monitors. No problem, so I thought. After 3 days and 5 attempts to set the monitors using the drive monitor procedure listed in Alldata the catalyst and the oxygen sensor monitors will ...
2002 Volvo V70 X/C 2.4L No Start, Hesitation, Cuts out, MIL Lamp on VIN: YV1SZ58D02
Hello folks, Got one here I thought I might post about. Above vehicle has a hard start, long crank time occasionally . Has a 5200 code, engine rpm / crank sensor. Customer states volvo dealer told owner about soft flywheel teeth (aluminum) that shed metal and ... Trouble codes: 5200 (Engine rpm sensor crank sensor)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Buick LeSabre Custom 3.8L intake gaskets VIN: 1G4HP54K8Y
Thanks to all the many responses that I received. I had to go back to basics on this one. The coolant loss was actually from the coolant elbow going into the front of the lower intake manifold. I replaced both elbows and that solved that issue. The misfire wa...
1996 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNDT13W4T
Ok I learned something on this one. First I believe that I need my scanner checked. FTP never showed any reading. I got a reading to the PCM. Checked with multi meter. Check vac @ canister in and out. Was going to get a used PCM but customer wanted a new one s... Trouble codes: P0446 (EVAP Blocked).
2000 Chevrolet Express 1500 4.3L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1GCFG15W9Y
Thanks to William. The ecm did have to be flashed. after all the tune up issues and programming the truck runs great. we did find a coolant leak spraying on the radiator fan and blown onto the pcm. we opened the pcm and the corrosion literally fell out like di...
2002 Chevrolet Trailblazer LS 4.2L Temp Blend Motor VIN: 1GNDS13S32
hi all thanks for the replies, it was a bad temp actuator. replaced it on monday but waited till now to close this out to give it a few days to make sure. customer called to say all is good! oem parts gotta love that huh! ac delco part says made in china, what...
2006 Chevrolet Suburban 1500 Z71 5.3L Front Blower VIN: 1GNFK16Z76
installing a new blower fixed it---thanks to all. This is where I would have closed this but IATN wouldn't let me-not enough information so now I have to type in this useless dribble.
1996 Chrysler Concorde LX 3.3L No Start VIN: 2C3HD56T2T
Thank you to each & everyone that took the time to help me out. I assumed that when I read that the cam sensor didn't need a signal to start that was the case. So after reading the posts I went back & checked, the cam sensor it was no good. I checked with a vo... Trouble codes: P0340.
2002 Ford Taurus LX 3.0L Rev limiter VIN: 1FAFP55U82
2003 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP53UX3
so far i have replaced the fuel pump, the fuel pump driver module, the fuel regulator, i found the wires to the fuel regulator melted so we replaced the loom, replaced the pcm, and this code still persists. we sent it to FORD and they could not find a problem ... Trouble codes: P0191.
2004 Ford F-350 Super Duty Harley-Davidson Edition 6.0L MIL Lamp on VIN: 1FTSW31P14
I found some corrosion in the main power wire connected to the right battery cable. After replacing the cable end and cleaning the battery terminals, the problem went away. Trouble codes: P0671 (cyl 1 glow plug circuit), P0672 (cyl 2 glow plug circuit), P0673 (cyl 3 Glow plug circuit), P0674, P0675 (cyl 5 glow plug circuit), P0676 (cyl 6 Glow plug circuit).
2008 Ford F-350 Super Duty XL 6.4L MIL Lamp on, Reduced power VIN: 1FTWW31R18
I apologize for taking so long to close this request. I have been hoping to hear from the Ford/Navistar rep in reference to questions on the pinpoint test for code P00B7. According to pinpoint test truck ect should be at 170 degrees F at steady idle. I was not... Trouble codes: P00B7.
1997 GMC C3500 Sierra SL 6.5L MIL Lamp on VIN: 1GTHC33F7V
Thanks for all the help guys, and to Patrick for all your info during our phone conversation. At this time the customer is going to allow us to continue "playing at our leasure" with this one. I have learned alot. We put a new PDM in the truck and it wouldn... Trouble codes: 183 (fuel temp. sensor circut high), 231 (fuel/lift feedback circut low), 251 (inj pump a rotor/ cam problem), 370 (timing reference a high res problem), 238 (boost sensor 1 circut open/high).
2003 Honda Odyssey EX 3.5L MIL Lamp on VIN: 5FNRL18963
Many of the replies were gas cap or fuel tank leaks, this code will not set for a fuel tank or gas cap leak, only a leak in the canister area. P01456 is for leaks at fuel tank. We did extensive tests on vent solenoid, removed for testing and never could get t... Trouble codes: P1457 (evap leak).
2005 Hyundai Sonata GLS 2.7L Temperature VIN: KMHWF35H65
Thank you all once again I gained much knowledge about these HVAC systems by the posts. Very easy fix Finally got in touch with customer, had them stop by, checked HVAC code indicated open in ambient temperature sensor Replaced sensor, ordered one from for...
2006 Hyundai Sonata GL 2.4L MIL Lamp on VIN: 5NPET46CX6
2001 Jeep Grand Cherokee Limited 4.7L Mechanical VIN: 1J4GW58W01
ok thank you too all that offered help. this one is fixed. ok so what i found is that the intake roller rocker roller was egg shaped. looked good but when measured the numbers told the story. i guess the roller would allow the lifter it pump up just enough to ...
2004 Mercedes-Benz G500 5.0L High/Low Shift VIN: WDCYR49E84
Thanks to David and Dave for their input. As Dave [...] suggested, the computer 'thought' the vehicle was in neutral when it really wasn't. I removed the harness connector from the selector motor and verified the motor worked. Cleaned the contact and put it ...
2001 Mercury Sable LS Premium 3.0L pcm VIN: 1MEHM55S41
mike from Michigan got it, exactlly the problem, thanks everyone. A/C compressor the culprit blowing the fuse.
2004 Nissan Sentra 1.8L Drivability VIN: 3N1CB51094
Still waiting for the customer to make a decision to repair the vehicle. Thanks for the help.
1996 Plymouth Neon High Line 2.0L Pcm VIN: 1P3ES47C9T
Thanks for all the help guys and gals but my frustration level has exceeded cutomer patience and money.I tried everything you all suggested "other than sliding a new car under the radiator cap".Again thank you all for the help and Merry Christmas!
2003 Pontiac Grand Am GT 3.4L No Start VIN: 1G2NV52EX3
Well unfortunately this one is not fixed customer is taking it for now. I did find out the he has done a lot of wiring on it himself and I found some wires with warmed up insulation underneath when i was disabling the vtd as recommended by a reply. what bother...
1996 Subaru Legacy L 2.2L Electronic VIN: 4S3BK4350T
Well, I give up. I have been driving it for the last couple of weeks, put over 450 miles on it, hasen't happened since! Kinda think the speedo itself is the problem, as these have a history of being bad, but since it seems happy now, I guess we will have to ...
2007 Toyota Tacoma 2.7L MIL Lamp on VIN: 5TEUX42N87
Thanks to all who replied. It took teen temperatures to make it act up non intermittently. Found no amperage being pulled at heater circuit. Had no ign voltage at the sensor at that point. Back tracked to AF heater relay fuse had a terminal which was not ti... Trouble codes: P0031.
2009 Volkswagen Jetta TDI 2.0L Misfire VIN: 3VWRL71K19
I believe the problem is an injector, and after discussing it with the customer he decided to take it back to the dealer. He didn't want to but we don't have the capability to program the pcm so we couldn't go further anyway. He also told us he has already had... Trouble codes: P0201.
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