1984 Crossfire keeps stalling at low speed
Thread Starter
2nd Gear
Joined: Jun 2026
Posts: 2
Likes: 0
1984 Crossfire keeps stalling at low speed
Been chasing this issue for a while.
The car runs great otherwise, starts right up every time and pulls strong. No codes except Code 12.
I replaced both IACs recently and that got rid of the strong fuel smell, so it definitely helped.
My problem now is that every once in a while, when I’m just creeping through a parking lot or slowing way down, the RPM drops and the car stalls.
TPS checks out fine at 0.49V closed and 4.61V WOT.
Anyone run into something similar?
thanks 🙏🏼
The car runs great otherwise, starts right up every time and pulls strong. No codes except Code 12.
I replaced both IACs recently and that got rid of the strong fuel smell, so it definitely helped.
My problem now is that every once in a while, when I’m just creeping through a parking lot or slowing way down, the RPM drops and the car stalls.
TPS checks out fine at 0.49V closed and 4.61V WOT.
Anyone run into something similar?
thanks 🙏🏼
Race Director
Joined: Feb 2002
Posts: 11,622
Likes: 1,056
From: Compound in the Grove, Ga.
2026 Corvette of the Year Finalist - Unmodified
2025 C4 of the Year Winner - Unmodified
2024 C4 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (performance mods)
2018 C4 of Year Finalist
2015 C4 of the Year Finalist
St. Jude Donor '16
Love my 82 found this on the L83 many years ago..Also had a few 84's
https://www.corvetteforum.com/forums...solutions.html
https://www.corvetteforum.com/forums...solutions.html
Pro
Joined: Jul 2023
Posts: 542
Likes: 282
From: Marysville WA
Had similar issues with my '84. Turned out the EGR valve itself was bad. I was having throttle tip in hesitation and stalling when lifting off the gas pedal. New EGR valve and IAC's along with chasing down all vacuum leaks fixed everything. Been running great ever since. Here is a link to my original post.
https://www.corvetteforum.com/forums...-stalling.html
https://www.corvetteforum.com/forums...-stalling.html
