truck stalls when letting off gas?

1998 DODGE RAM
117,000 MILES • V8 • 4WD • AUTOMATIC
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70MOPARMAN
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had to jump start my 98 dodge ram 5.2l. battery only 2 years old. after starting, I let off gas and everything dies, lights, everything. Is it alternator or idle air control?
Jun 29, 2009 at 11:29 PM
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STRAILER
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It sounds like it could be both, I would check the alternator output and then replace it if it is not changing. This guide can help, and I have left diagrams below on how to change the alternator out. Disconnect the battery first.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Also, for the stalling at idle problem the IAC sounds like it is dirty or not working correctly. The location is in the diagrams as well.

https://www.2carpros.com/articles/idle-air-control-valve-service

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Jul 22, 2022 at 10:36 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.