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Prev Professional Automotive Repair Technical Discussions for September 25, 2013
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Help Request Answers
1996 Cadillac DeVille 4.6L 2-3 shift VIN: 1G6KD52Y0T
Looking for input from auto tranny guys.This is my Pops car.Not very familiar with the 4T80E trans but have worked on a lot of other gm auto trans.Anyway,the problem was 1-2 shift was fine,no 2-3 shift and no 4th.When scan tool said 4th,trans either was droppi...
1996 Chevrolet K1500 Cheyenne 5.0L turn signals/hazzard VIN: 1GCEK19M3T
Thanks in advance for your time,The turn signal fuse #16 will pop as well as the stop/haz fuse #1 but at different times,PLEASE read carefully so you understand-the fuses only blow when you use the turn signals OVER 55 mph.If you were to put the turn signals o...
2005 Chevrolet Silverado 2500 HD 6.6L emmissions VIN: 1GCHK29275
this truck smokes black if you get in it or when you are going down highway you can see black puffs, soon as you get off highway and touch the throttle lots of smoke. no codes, i have replaced the fuel filter air filter mass air flow sensor turbo, new jasper e...
2007 Chevrolet Corvette 6.0L air bag VIN: 1G1YY26U57
the air bag light was on there was four codes for the seat belt pretensioners driver and passenger tried to clear codes they came right back gave car back to body shop said replace both pretensioners they brought car back after repairs with air bag light blink...
2007 Chevrolet Silverado 3500 Classic LS 6.6L Excessive Emissions VIN: 1GCHC33D47
this 07 classic duramax smokes black at idle and runs rough, has a miss and an injector knock. truck runs and drives and has plenty of power. smoke never stops. no air restrictions. you can hear turbo spooling. scanner shows misfire codes on 3,5,6, only. stops...
2008 Chevrolet Trailblazer LT 4.2L Starting VIN: 1GNDT13SX8
customer stopped to get gas then the vehicle would not start. sometimes it will start and run for about 3 seconds and die. most of the time the starter won't work at all. We are getting a u1301 code that won't clear and we can't communicate with the body modul...
2008 Chevrolet Trailblazer LT 4.2L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GNDT13S18
This vehicle came in with symptoms of running rough no power stalling out and check engine light on and reduced power light on. Has P0651 stored in computer. The problem is it is very intermittant when it happens. The three times it did happen where on start u... Trouble codes: P0651 (Loss of 5-volt reference Circuit 2)
2006 Chrysler 300 (Car) Touring 3.5L drivetrain VIN: 2C3KK53G06
2006 Chrysler 300 Touring AWD 3.5 liter V6 Customer called and said the car is jerking when she comes to a stop. When she brought the car in, I test drove, saw no issues. Asked her about it and she says it is not doing it today. Intermittent issue, says has t...
2001 Dodge Dakota Sport 4.7L No Start, Surge, Stall, transmission VIN: 1B7HG2AN01
Called me today they started having problems with transmission jerking in overdrive 3 Days ago with overdrive off it's ok. Today it stalled check engine came on just before it stalled and got worst stalled 3 times before she got home went checked it road teste...
2003 Dodge Ram 1500 Truck Laramie 4.7L No Start VIN: 1D7HA18N93
This one has me totally baffled. If this truck sits overnight, it will not start the next morning until after many attempts.You crank it and the starter kicks out. After several tries it'll begin to fire, then kick out. Once the engine begins hitting like that...
2010 Dodge Ram 3500 Truck Laramie 6.7L cluster VIN: 3D73Y4CL1A
thanks in advance,i have this truck that will not reset the maintenance reminder in the cluster as per Dodge's procedure.any ideas?
2002 Ford Explorer XLT 4.0L axle VIN: 1FMZU73E72
Good afternoon fellow techs. This is throwing me for a bit of a loop. 02 Ford explorer with 4x4, 4.0L. Customer brought this vehicle in for a "thumpping noise" only on decel from 55mph to 30 mph. And only at times. I took it out and test drove with the custome...
2004 Ford F-150 FX4 5.4L Poor Fuel Economy, no power VIN: 1FTPW14584
Customer said lack of power & fuel mileage down. Test drove vehicle while driving actuator never turns on. Know actuator only actuates after 2600 rpms. Replaced intake runner actuator and checked runners as dealer said this is common problem. Still same issue.
2004 Ford F-350 Super Duty King Ranch 6.8L Excessive Emissions, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTWW33S54
Good afternoon fellow techs! Customer came in for rough run and fuel leak on exhaust manifold. I witnessed fuel seeping through the exhaust manifold gasket at cylinder #6 and dripping onto frame. This obviously explains all codes present. I unplugged #6 inject... Trouble codes: P0175 (System too rich bank 2), P0306 (Cylinder 6 Misfire Detected), P0316 (Engine Misfire Detected on Startup)
2006 Ford Escape Hybrid 2.3L Steering VIN: 1FMCU96H26
Came in with code C2792 short to voltage ps motor wire. Running through the tests from MOD it says to ck for voltage on motor wires with them disconnected, if ok then ck for resistance in the torque sensor all should be over 10k ohms well I have one circuit th...
2011 Ford F-250 Super Duty King Ranch 6.2L 3-5 VIN: 1FT7W2B6XB
all trans solenoids are identified as a band 5 on original do we determine position for 2,3,4,and 5 band shift replacement parts
2008 Honda Odyssey EX 3.5L range switch VIN: 5FNRL38418
the d light on the dash flashes after the car has been driven a while. check engine light comes on for code p0705. I have replaced the range switch and tested the wiring harness from switch to pcm and found no opens or shorts in harness. with scanner hooked up...
2005 Hyundai Elantra GLS 2.0L MIL Lamp on VIN: KMHDN46D55
This vehicle has a p0171 code. The freeze frame data showed the vehicle just off idle with about 1000 rpm, and the LTFT was 25%. Now with the vehicle idling warmed up the ltft is 25% and the stft is around 0 unless you barely move it off idle and it will go up... Trouble codes: P0171
2000 Infiniti I30 3.0L Code P0505 VIN: JNKCA31A7Y
P0505 is a fault code for idle problem. I replaced the IACV and repaired the ECM and completed the IAVL successfully, but I keep getting the P0505 code and we cannot smog it. Help!
2004 Jeep Liberty Sport 3.7L No Start VIN: 1J4GL48K74
I have a 2004 Jeep Liberty that the PCM driver for the #4 fuel injector. Should be a simple fix. It needs a PCM (fuel injector had already been replaced at another shop) so we get a new one from Dodge. Install it and program VIN and Odometer (does NOT have SKI...
2012 Jeep Grand Cherokee Overland 5.7L Final drive module VIN: 1C4RJFCT5C
I have been chasing an intermittent communication problem on this Jeep for a couple of weeks now. The customer states that a service 4wd message will illuminate and that if the cruise control is on, it will disengage at the same time the service 4wd message ap...
2006 Mazda Tribute S 3.0L Excessive Emissions, Poor Idle Quality, Stall VIN: 4F2CZ04196
Client says engine start fine in the morning, start driving with out any problem, once arrive to an stop it stall (this symptom is intermittent) then after running the car for more than 20 minutes the stalling becomes more frequent(only at idle), if you try to... Trouble codes: P0172 (System too Rich B1), P0175 (System too Rich B2), P2196 (O2 Sensor signal stuck rich B1S1), P2198 (O2 Sensor Signal stuck rich B2S1), P0403 (EGR malfunction)
2007 Mazda 6 Mazdaspeed 2.3L MIL Lamp on VIN: GG3P400777
Need some help with this P2188 code. The engine smells like it had fuel in the oil so we have replaced the injectors and carbon cleaned the valve heads replace the MAF sensor and new engine oil. Code came back after a few days driving.Oil still smells bad but ... Trouble codes: P2188 (System too rich at idle)
2008 Mazda 6 i 2.3L No Start VIN: 1YVHP80C88
my customer stated that car shut off while driving. towed it in. no codes, no spark. I have fuel pressure and injection pulse. the vehicle security light goes out. when I disconnected the crank sensor the injection pulse went away so I assume its live. I hooke...
1991 Mercedes-Benz 500SL 5.0L Poor Idle Quality, Misfire, Hard start VIN: WDBFA66E5M
Thanks in advance for the help. We have this pristine, low mileage, 500SL in for a intermittent hard start/misfire at idle. It will ONLY misfire for about 5 seconds after starting. This is at times accompanied by an extended crank (about 5-10 seconds). When it...
1996 Mercedes-Benz C280 2.8L Starting VIN: WDBHA28E4T
Customer came in and said that it was loosing power. Had to hold the accelerator to floor to get to move. Two different shops checked the vehicle and said that the camshaft position sensor was faulty. the second shop changed the cam sensor and the car would no...
2004 Mercedes-Benz C320 3.2L computer VIN: WDBRF84J64
Car towed in from another shop. no crank. checked all fuses, found # 47 blown replaced still good,tested starter relay starter works fine.hooked up scan tool cant get any communication with ecu can get into all other modules.Key turns fine in switch. Thanks fo...
2005 Nissan Maxima SE 3.5L Hesitation, MIL Lamp on, hes to go to idle VIN: 1N4BA41E85
vehicle has manual 6 speed. when the throttle is closed to shift (or ever) the idle takes about 5 seconds or so to actually go down. so either the vehicle slows down too much to shift or ends up shifting hard. we have a modis that does have the ability to do t... Trouble codes: P0507 (High idle speed), P1800 (vias circuit)
2004 Pontiac Aztek 3.4L Instrument cluster VIN: 3G7DA03E34
We installed a reman GM instrument cluster in this vehicle. It does not have ABS or traction control. The ABS, brake, Traction light and service traction control message appear on the cluster. There is a procedure provided with the cluster to install on vehicl...
2006 Pontiac Grand Prix GXP 5.3L ebcm VIN: 2G2WC58C06
co236. ebcm ???
2002 Saab 9-5 Aero 2.3L High Idle VIN: YS3EH49G02
Evening techs, I'm don't work on these cars that often, but the car was brought in for an oil leak. Which turned out to be just an oil pressure sending unit. The customer asked us to take a look at the high idle problem. I did a scan and the only code was a P0...
2005 Subaru Forester XS L.L. Bean Edition 2.5L rear struts VIN: JF1SG67615
Hi subaru techs! Can you switch over ride leval rear struts over to regular rear struts? Has anyone had experiance in this. Thanx Mark
2009 Subaru Forester X Premium 2.5L Mechanical VIN: JF2SH63639
Hey everyone. I have this Subaru that has an intermittent noise(like a whirring or dull whistle), and it only happens when in drive or reverse while trying to accelerate. And usually while the vehicle is cooler(on initial start up or after sitting) I can do a ...
2008 Suzuki Grand Vitara 2.7L Poor Idle Quality VIN: JS3TE94128
Hi all... Have this 2008 suzuki grand vitara idling too slow and will not compensate for loads. The only thing done to it was a battery replacement. After connecting the new battery and started the veh now it exhibit the slow idle. Already tried two different ...
2003 Volkswagen Jetta GLS 2.0L Excessive Emissions, Poor Fuel Economy VIN: 3VWSK69M53
We trouble shoot P1176 using Genesis, scanner Info is very limited, fuel pressure ok 38psi, no vacuum leaks, engine idle fine, we check wiring to front A/F ratio sensor ok, we removed sensor and to check it visually and the tip of sensor look light brown white... Trouble codes: P1176 (02 Correction Behind Catalys), P1364 (Cyl. 4 Ignition Circuit Open)
2009 Volkswagen Jetta SE 2.5L MIL Lamp on VIN: 3VWRM71K49
Firstly,thanks in advance for your assistance. This one is for all those VW gods out there. This vehicle came in with a p0106 code a few weeks ago. the customer does his research on his vehicle came wanting this sensor to be replaced. So we replaced the sensor... Trouble codes: P0106
2002 Volvo S40 1.9L MIL Lamp on VIN: YV1VS29582
Hi all, I have this Volvo S40T 2002 model with a ECM-25 lean code. The fuel trim (part load) is around 16% and fuel trim (idle) 0.6%. I have smoked tested the intake and did find a small leak where the booster hose fits into the intake and a small leak at the ... Trouble codes: ECM25

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1974 Audi 100 Series LS 1.9L Hose routing VIN: 8041073309
Thanks for all the help, several people pointed me to some online resources and on person emailed me a great diagram.
2003 BMW Z4 2.5i 2.5L Starter Motor VIN: 4USBT33443
Hello every body, we finally fixed this little champ, thanks to all of you who took your price less time to respond, especially to Alan, he provided me with a clear description of the way the tcm sends the voltage to trans. range switch, he even mention the pi...
2007 BMW 328xi 3.0L Cooling fan VIN: WBAVC93577
Car is fixed. This case will be be helpful to others. Found the fuse location (in fuse box behind the glove box.) Jorge and victor we helpful with this. Very vague. Always have I had vague descriptions and inaccurate locations for these and other euros fuses. ...
2004 Buick Rainier CXL 4.2L Mode Door VIN: 5GADT13S14
Well after some more thinking on this problem I wondered if the other shops that worked on it took the actuators off & got mixed up. I called GM & asked for part numbers for a/c heat & defrost motors. Sure enough they were swapped. The new one on ac heat be...
2008 Chrysler Sebring Touring 2.7L Power Top VIN: 1C3LC55R08
Thanks, all, for the replies. Unfortunately, I had to take a blow to my pride on this Sebring. No scanner available to us would communicate with the PTCM. This one had to go to Chrysler, and I had to cry in a corner. Thanks again. I hope to update our sca...
1998 Dodge Dakota SLT 5.2L Misfire VIN: 1B7GL22Y8W
Sorry for not posting this reply sooner.I THINK I have a excuse! I spent three weeks in the hospital.When I got back to my computer I could not get on the internet.The pickup come in without the MIL on.Customer thought maybe a bad fuel pump,a quick pressure an... Trouble codes: P0300, P0132.
2004 Dodge Intrepid Police 3.5L Excessive Emissions, Misfire VIN: 2B3HD46V04
Well I'm assuming this one is fixed,I replaced bank 1 o2 sensor with dealer part.The miss cleared almost instantly.Test drove,gave to customer,been gone for 3 weeks,no news is good news,thanks to all who replied.Great site! Trouble codes: P0300, P0132.
1998 Ford Windstar 3.0L 3.0L All electrical VIN: 2FMZA51U7W
Thanks every one for all the input, Vehical acted just like a bad battery cable connection, made sure they were tight & clean & did a voltage drop test. It never did act up again for me but I pulled the fuse box out from under the hood & opened up the wire har...
2004 Ford Ranger Edge 4.0L battery VIN: 1FTZR15E84
Even though this truck has no subwoofer I have no idea why a fuse was in # 12. I replaced the smart junction box because it had gotten wet. Found a TSB on improper windshield installation causing water leakage down onto the SJB. After a reflash and reprogrammi...
2005 GMC Sierra 1500 SLE 5.3L Keyless Entr VIN: 2GTEC19T15
Sorry this took so long, I was trying not to give up on it. I thank all of you that tried to help with this truck. FYI...I did also try a new BCM and programming in case the PDCM sends a signal to the BCM to carry out the function but still no response from t...
2004 Hyundai Sonata GLS 2.7L Pcm VIN: KMHWF35H04
The car never did complete the readiness monitors, it is stuck on EVAP and O2 monitors. I forced a test on the EVAP system which came out OK but it didn't help getting it to complete the test. I mentioned to the customer that he might need more gas in the tank...
1995 Jeep Grand Cherokee Laredo 4.0L Rear Brake Pads VIN: 1J4GZ58S1S
Thanks to all who responded...the rear calipers were the culprits. Replaced the calipers at both sides and sent the customer on the way. Must have fixed the problem, as they did not return with any complaints. iATN did it again!!!
1998 Jeep Grand Cherokee Limited 4.0L instrument panel
I went out to the island recently and removed the cluster to check the connector pins when I put it back together all the gauges worked
2002 Jeep Liberty Sport 3.7L starter VIN: 1J4GK48K02
After studying the wiring diagram I replaced the neutral starting switch.That fixed the problem.Thanks for all the help guys,Bill
2002 Mazda Protege5 2.0L Charging VIN: JM1BJ24672
Customer is taking car to the previous shop and attempt to get a dealer alt installed on warranty. . I appreciate the help from "The borderline" helped me get to the conclusion that I should install a factory alternator. The ALT output of 14V is not enough, PC...
1999 Porsche Boxster 2.5L Misfire, All 6 cyl misfire VIN: WP0CA2982X
Thanks for the replies everyone. I had good fuel pressure, cleaned MAF. Wasn't convinced to replace o2s. Vacuum leak at the boots where throttle body meets intake manifolds, the slide-over boots were clamped down crooked causing a small vacuum leak. After the ... Trouble codes: 75 (Misfire Damaging to cat), 68 (Cylinder 6 misfire damaging to cat.), 66 (Cylinder 4 misfire damaging to cat.), 67 (Cylinder 5 misfire damaging to cat.), 62 (Misfire Emissions-relevant), 63 (Cylinder 1 misfire damaging to cat.).
2003 Porsche 911 Carrera 4 3.6L Top VIN: WP0CA29913
install new micro switches & caliberate the top, its all good, sorry it took so long, was waitting on the switches
1985 Saab 900 2.0L No Start VIN: YS3AM35J8F
Well I took all the awesome info and applied it. I'm still working this project. I took the injectors out and put them in plastic jars to watch fuel pattern, pulled up on air valve and all seem to work except #3. So I swapped 3 & 4 and then #4 was bad. These a...
1991 Toyota 4Runner SR5 3.0L Poor Idle Quality VIN: JT3VN39W3M
Thanks very much for the replies, great answers. We put another power steering pump on and the noise went away. I believe it was probably the O ring issue that Denver [...] suggested. The other recommendation to stick with an o.e. pump for Toyotas is probab...
2005 Volkswagen Jetta 2.5 2.5L MIL Lamp on VIN: 3VWSF71K85
Since the only symptom was the light and no steering problem the customer choose to live with the light. It was assumed the rack and harness should be replaced neither was cost effective without having any other problems. Trouble codes: 00573 (steering torque sensor implausible signal).
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