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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   Drive Shaft Repair I have a 2015 Chevy Traverse AWD. The fr...   2006 Toyoto Camry XLE Driver Side Electric Window Trouble Hello, Looking for a little brain help ...   Tierod end change caused some kind of leak Hello so I just took my car to the nearb...   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...

Search Auto Parts Search Electrical transmission problems Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Transmission Problems nvlawman New User Mar 31, 2011, 6:12 AM Post #1 of 4 (2481 views) Electrical transmission problems Sign In I have a 1997 Chevy C2500 3/4 ton pickup. When it's cold out (I mean cold for Las Vegas, NV like around 38-50 degrees), the auto transmission will quickly "jerk" to shift into each gear. However, if you were to stop somewhere and shut it off for a minute or so, it runs fine afterwards. It will also at times suddenly down shift when on the freeway. The transmission has been rebuilt and I'm sure it's electrical. It also has a new brain. I've been told by the transmission rebuilder that he believes it is the ignition switch but isn't positive. Could that be it? If not, what could it be? Thank you. Tom Greenleaf Ultimate Carjunky / Moderator Mar 31, 2011, 8:57 AM Post #2 of 4 (2478 views) Re: Electrical transmission problems Sign In IDK for sure but doubt ignition switch unless the engine isn't behaving or doing momentary cut outs? If so that needs more diagnosing than guessing. Pretty sure you can pull codes on this for trans even without a light on there could be info to help. Intermittent bull like this is a problem to diagnose as you know you bring it back and it won't do it in front of anyone - happens all the time. Check for connections for throttle position, potential vacuum leaks and I think this has a vehicle speed sensor on trans itself. For some reason GM - seems like trucks more than the cars has problems with the connector/plug in things more than others. I'm not a trans specialist but have some clue, T nvlawman New User Mar 31, 2011, 10:58 AM Post #3 of 4 (2472 views) Re: Electrical transmission problems Sign In The transmission has been checked for error codes and anything that did come up previously was replaced. The vehicle currently shows no error codes, that's why it's a mystery even to the transmission mechanic. Thanks. Tom Greenleaf Ultimate Carjunky / Moderator Mar 31, 2011, 1:29 PM Post #4 of 4 (2464 views) Re: Electrical transmission problems Sign In A trans tech should know what the possible things are that could cause this. New sensors or not they might not be good or right. It's not exactly some rare exotic vehicle, T   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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