Question about 1994 GMC Suburban
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Posted on Jan 02, 2017
It sounds like your torque converter is not unlocking. Best thing to do is take it to a transmission shop and have them hook it up to a tech 2 scanner and hope it's will have a DTC code in it's history. it's hard to say what is going on, it could be as simple as a oil and filter change due to the loose of transmission fluid line pressure from dirty filter, or a faulty TPS that sends signal to the ECM that will control the torque converter lockup solenoid and line pressure solenoid. Best thing to do and have it scanned since that is cheaper then and rebuilt transmission of something simple. Oh and check the transmission fluid for level and condition, it should be bright red, not dark like burgundy. Keep me posted, be glad to help you save some money.
Posted on Jul 03, 2009
Sound like you're going to need to drop the transmission pan so you can replace the filter along with fresh transmission fluid. I had a problem like that many years ago, this correct the problem... I also know that the throttle positioning sensor will also cause transmission shifting problems. I would start with the filter change then go from there... Good luck.
Posted on Aug 29, 2009
CHECK YOUR OWNERS MANUAL.TO BE ON THE SAFE SIDE.I HAVE SEEN THOSE TRUCKS PULLING CAMPERS.YOU NEED TO HOOK UP A AUXILIARY COOLER TO RADIATOR AND TRANSMISSION TO KEEP TRANSMISSION FROM OVER HEATING.WHEN TOWING PUT STRAIN ON TRANSMISSION CAUSE THEM TO OVER HEAT.
Posted on Sep 29, 2009
with the info you have here it sounds like you have clucthes burnt , you will need to have it rebuilt , or replaced .
more info would be helpfull
Posted on Oct 02, 2009
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