95 chevy 1500 pops and backfires doesn't want to shift into overdrive when cold when it does the truck runs real rough

Automatic trans having overdrive issues - Diesel Bombers

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Apr 22, 2011 - '96 dodge 2500 transmission is having trouble staying in overdrive. ... Hetold me it could be the Throttle Position Sensor, the computer needs ... Oh and another thing, The brake safety for shifting out of park is .... 95 chevy 3500 6.5l trans issues, drgracen, Chevy/GMC 6.2L and 6.5L, 1, 10-05-2015 10:13 PM.


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need new A/C controler in dash

i have a 90 chevy 2500 2wd 350ci.when i go to start my truck the key turns hard in the ignition,the check engine light and brake light come on the heater dont work,and the transmission will shift from 1-2 at real high rpm and shift hard,no 3-od.this comes and goes,but all happens at the same time.some times it last for 10 min,sometimes its days.what is going on?

Sounds like possibly more than on problem, crankshaft position sensor, or ignition module likely on starting prob which maybe affecting shifting due to hard code in ecm, or shift prob could be shift solenoid in valve body of transmission. Both parts readily available from local parts store

change electronic module on side of transmission

Please replace your COIL with new one.
Regards, Jay

you may be confusing the torque converter clutch engagement with o.d. this trans has a problem with the T.C.C. regulator valve wearing out the valve body bore. this will cause the converter clutch to engage only sometimes or not at all. this will set a P1870 code in the control module. when this code is stored in the controller, ( check engine light may or may not be on), it increases the pressure in the transmission causing the 1-2 shift to be harsh. ask a local tranny shop to scan the vehicle ( most will do this for free) if this is the problem they can either fix your valve body (sonnax parts) or replace it with an upgraded valve body. hope this helps

This is probably one of four things or a combo thereof...dirty fuel injectors, cracked distributor tower/burned points (if it's not electronic ignition), burned valves or air/gas flow sensor if it's computer controlled (the chip is likely bad).

your transmission is slipping

Loud popping in the intake means that the unburnt gas exploding in intake.... Check cranks sensor and gear. Gear may dirty or even damage or BAD crank sensor the sensor provides reference for spark signal. So this may be your problem. Contact if you need more help. Thanks for using FIX YA