It will go fine in reverse and it will move in drive but overdrive does not shift. It moves but dont shift. Ask a Question: why wont my van shift in over drive but will shift in drive
Check your E-break first, secondly check to make sure you have no errors kicking from the control unit (engine computer module) which may or may not trigger a check engine light. Moreover it could be several things. Since it's an automatic the drive train maybe damaged, controller unite could be damaged, the transmission could (and probably) is dying. I'd have a professional mechanic check it out.
SOURCE: 1994 chevy G20 van, ac not engageing, freon charge
either the refrigerant is low, or the low pressure cut out switch( the one you are jumping out) is bad. The switch is cheap, and just screws onto the schrader valve on the accumulator, so you will not loose the charge when yo change it.
SOURCE: POWER BRAKE BOOSTER REMOVAL,HELP!
remove master cly. from booster. then under dash remove clip & pin from brake pedal . pull carpet down remove 4 nuts . pull off booster..
SOURCE: Electronic Control Module Installation 1994 G20 Chevy Van
I just had the same problem. If it is a regular van try under the driver seat in a plastic box. If it is a conversion van try in a pannel just behind driver seat on side of van wall behind a pannel that looks like a vent.
SOURCE: 1994 Chevy van brakes grabbing
try replacing the brake hoses they may have a restriction causing
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This happened after the ignition switch was changed
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