Runs fine at idle but in drive it pops missing bogs down and stalls

1988 CHEVROLET CELEBRITY
55,000 MILES • 2.5L • 4 CYL • AUTOMATIC
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BIGD94
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  • 13 POSTS
I have the car listed above that I have been doing a lot of work on it. it starts up fine and idles fine until you shift the transmission into drive then it'll try to shut off. I have give it gas to stay running, but it'll pop bog out just no power like only E-brake on fully to the floor. it won't move just bogs down real bad, missing popping. it'll red line in park no problem. pulled the air filter cap off watched it spray fuel got good fuel spray, It will miss time to time when it idles. no check engine light.



List of new parts


New parts
Map sensor
ECM
Alternator
New air filter
Ignition control module
Spark plugs
Wires
O2 sensor
Valve gasket
Throttle body gasket
Flasher relay
High beam switch
Turn signal switch clock spring
Crankshaft position sensor
Jun 16, 2021 at 8:02 PM
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STRAILER
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  • 53,872 POSTS
It sounds like you have a broken valve spring. I would remove the valve cover and use a flashlight to check the coils of the spring. Let us know what happens and please upload pictures or videos of the problem.
Jun 18, 2021 at 12:50 PM