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Prev Professional Automotive Repair Technical Discussions for March 28, 2010
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Open Help Requests for All Makes and Models
Help Request Answers
1978 Chevrolet Malibu 5.7L Surge, Stall, cut out 3000rpm VIN: 1G6W54B371
Ok guys I have my race care that is giving me problems, The motor is a 355 Chevy small block,3800 stall, 11.8.1 compression,new stock 830 Holly carb carb ,New 1000 automotive fuel pump running at 7psi with a boost reference regulator,Msd 6al btm ignition, A pc...
1996 Chevrolet K3500 5.7L Stall, MIL Lamp on VIN: 1GCHK33R3T
I appreciate all replies in advance. Customer complaint was that vehicle would suddenly start cutting out and stalling. Code retreived was P1122 (tps low voltage). The first time I checked the vehicle all was well. I connected a Tech II and set the snapshot to... Trouble codes: P1122 (Throttle position sensor - low voltage)
2003 Chrysler Town & Country (Van) LX 3.8L wipers, directionals, heater blower VIN: 2C4GP44L03
Hi Folks, This symptom happes so erratically and for such a short period of time that I have not been able to repeat the problem in the shop. It happens most often when shifting into reverse gear and occasionally just driving down the road. These accessories j...
1998 Dodge Durango 5.2L cold shift
Hello, I have a dodge durango that donsen't like to shift on the 1-2 when cold, also vss erratic, no codes and has harsh engaugement when you go from park to reverse. Fluid is clean and not burnt. Shifts fine in all other gears. I plan to replace the vss but a...
2000 Dodge Ram 1500 Truck 5.2L 1-2 shift VIN: 3B7HF13Y8Y
I offered to help a friend who owns a local trans shop with this 2000 dodge ram 1500. The situation is this; when taking off from a stop (it's much worse when accelerating uphill under medium throttle) the trans will hunt rapidly from 1-2-1-2 until some speed ...
1990 Ford F-350 XL 7.3L shudders hard at VIN: 2FTJW35M2L
My ,question to all techs out there is,this i am quite certain that converter must have burned up when it ran out of fluid and customer continued to drive it with less than enough fluid, but would you all suggest complete overhaul or just basic converter and f...
2004 Ford F-150 FX4 5.4L MIL Lamp on VIN: 2FTRF18255
This vehicle came in with codes P0171, P0174, P2195, P2107 and P2272. It had high long term fuel trims. I replaced the upper intake gaskets-seals. New spark plugs, Cleaned MAF sensor, TBI bore and plate. Cleared codes. Truck ran fine, idled smooth. During roa... Trouble codes: P2272 (B2S2 lean)
2004 Jeep Liberty Sport 3.7L MIL Lamp on VIN: 1J4GL38K74
after install a aftermarket o2 sensor on bank 1/2 (standard name brand)and road tested now get a p0138. i tested the aftermarket heater resistance and found 15.8 ohms. the other bank 2/2 heater resistance is at 4.6 ohms. my gm knowledge has me thinking that re... Trouble codes: P0138 (bank 1/2 circuit high voltage)
2002 Lexus RX300 3.0L ride control VIN: JTJHF10U42
I am getting a intermittent thumping coming from right rear. Sounds like a wheel hop,but I had another tech follow me down the rode and when the vehicle makes the thumping sound he did not see any wheel hop. I also removed drive shaft and checked all joints an...
2004 Mazda 6 S 3.0L MIL Lamp on VIN: 1YVFP82D1P
This vehicle has been in andn out of our shop for 3 weeks now and with no problem solved car orignially came in and codes presensted p0171 and p0174 fuel trims were at max 20% long term both banks suspected mass air flow sensor cleaned and no change to fuel tr... Trouble codes: P0171, P0174

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2003 BMW 745i 4.4L tpm VIN: WBAGL63503
I have the customers tires here and I am looking for a small hand held device that can tell me which sensor or battery in the sensor is bad. The BMW GT1 will not help me do this. I will update this when the car is fixed. Thanks for the replies.
2004 Ford F-150 Heritage XLT 4.2L abs light on VIN: 2FTRX17264
Finally figured this one out. The connector is located under a panel on top of the passenger side dash. This panel is held in with clips, you just carefully pry up around the edges with a flat screwdriver. You will see a half connector with six wires going to ...
2005 Ford Explorer XLT 4.0L No Start VIN: 1FMBU73E45
I found a rotted ground wire to the fuel pump between the rear quarter module and the fuel pump. Thank you everyone for your help on this.
2002 GMC Sierra 1500 4.8L abs activation VIN: 1GCEK19V32
thanks all the techs who take the time to reply.everyone are right on the money .left front wheel drop out earlier causing abs activation. thanks again
2001 Infiniti QX4 3.5L Battery VIN: JNRD09YX1W
Well, I checked the switches for the doors, rear hatch as well as the hood. First, I disconnected them and using an ohmmeter, made sure the switch made and then broke continuity. I couldn't find access to a more detailed wiring diagram for this module, but I b...
1987 Mercedes-Benz 420SEL 4.2L Stall VIN: CA3503HA32
thanks to all that replied. the problem came out to be the overvoltage protection relay. replaced it and all is well. thanks to all that responded.
2003 Nissan Pathfinder SE 3.5L valve timing VIN: JN8DR09Y13
Thanks so much for everone's help, it ended up being the variable valve timing sprocket. I removed the sprocket cover and valve timing solenoid and cleared all the passages from excessive deposits. Than flushed the engine again.
1991 Toyota Pickup 2.4L coolant in oil
Thanks so much for everone's help, it ended up being the timing chain cover like most of you said. It was hard to see where it was leaking. The guide was broke and there was a groove worn in the cover, I over looked the leak at first because I was expecting to...
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