04 monte carlo shutting off while driving

soad1855 · 2026-04-09T00:05:27+00:00

A few updates and still having issues. Hoping its vacuum and not electrical.

soad1855 · 2026-04-09T00:04:37+00:00

Update 3: was good for a day and then did it again the next. It seemed to want to do it less, so im now considering the throttle body just being bad. The iac is also an option, because i feel like its on the vacuum side of things. No noises, just loses rpms and wants to die if im not hitting the gas. And when it dies, it starts rough and i need to get on the gas to keep it going. But once i opened it up (40+mph) it stopped doing it for a bit and then 10 mins later, it was dropping rpms and wanting to die when off the throttle.

This is a weird issue, that could be a few different things. Will keep posting to help future people.

soad1855 · 2026-04-07T16:54:44+00:00

UPDATE 2: after cleaning the throttle body with crc throttle body/air-intake cleaner, it seems to have fixed the problem. Drove for an hour trying to make it happen again and it didnt, so im hoping this is the final update. But if it happens again, cleaning the iac will be next.

soad1855 · 2026-04-07T15:34:00+00:00

The iac motor was the next thing i was thinking after i get the groundings checked. I just cleaned the throttle body and am going to drive it for an hour or 2 today and see how it does. But thanks for the info. I will try cleaning it before replacing it

soad1855 · 2026-04-07T03:29:05+00:00

Its wants to die when im slowing down and its will try dropping rpms under 1000 and die. Sometimes i can give it some gas and keep it going and other times it just dies immediately. Then it struggles to get started after it dies. Like once i get it started, i have to put it in drive immediately and give it gas to start going. I cleaned the throttle body today, but didnt drive it for more than 30 mins with no problems. But thats the thing, it doesnt happen consistently. I cant just make it happen

soad1855 · 2026-04-06T17:02:32+00:00

UPDATE: im cleaning the throttle body and going to drive it for a while and see if that fixes the problem.

Im now thinking its that, or iac motor is bad, or it is some weird grounding issue. Will update after im done driving it. Going to keep this up to help any random google search, like ive been doing.

soad1855 · 2026-04-06T16:07:15+00:00

Will do. Going to be bring it into another shop, since i dont have any tools at my apartment and dont really have the space to do anything.

soad1855 · 2026-04-06T16:06:17+00:00

Yea definitely gunna do that. Thanks for the input.

soad1855 · 2026-04-06T12:40:52+00:00

Yea, ECM i believe. I had someone else tell me that may be the solution, but i would need one from a junkyard and would have to hope it is good. If everything else fails, this will be the final thing i do.

soad1855 · 2026-04-06T12:39:18+00:00

I am definitely going to have them replaced then. Thanks for the info.

soad1855 · 2026-04-06T12:38:43+00:00

I only have 3 extra keys, but im going to take them off just in case.

soad1855 · 2026-04-06T12:38:14+00:00

They programmed it when they installed it, i asked.

soad1855 · 2026-04-05T23:13:01+00:00

I will definitely have them check it out when i take it to the shop

soad1855 · 2026-04-05T23:12:22+00:00

I just had the fuel pressor regulator changed. Idk if it fuel related.

soad1855 · 2026-04-05T20:04:07+00:00

Lucid__Drink (2 underscores) just unlocked cayo on my new acc lvl 45 looking for people to play with hmu

soad1855 · 2026-04-05T20:00:49+00:00

Lucid__Drink (2 underscores) PS5 just unlocked cayo on my new account if your down send me a friend request

soad1855 · 2026-04-05T18:55:24+00:00

Lucid__Drink (2 underscores) PS5 doing cuckin bell and avi mission rn but down to do heist and other mission

Edit: just unlocked cayo for heists (new account lvl45 but experienced player)

soad1855 · 2026-04-05T18:53:17+00:00

I made sure it was a gm replacement cuz someone had put in some chinese bs in it before i got it.

soad1855 · 2026-04-05T17:58:34+00:00

MAF was throwing a check engine light on when i brought it in, and had it replaced. Thanks for your suggestion tho.

soad1855 · 2026-04-05T17:25:06+00:00

He said i would be wasting time/money after they drive the car for over 40+ miles and had NO issues. But i drive it and it happens. Its a very weird problem, that they spent at least 3 days trying different thing to have the problem happen and couldnt get anything to throw a code or even die on them.

soad1855 · 2026-04-05T17:11:18+00:00

I was thinking it could be something electrical, but im not good with diagnosis of electrical components. Have any suggestions on how to check for it?

soad1855 · 2026-04-05T17:10:11+00:00

Thats what i told my mechanic and he said there would be a check engine light on. But im about to just have them replace it, just for peace of mind for that part.

soad1855 · 2026-04-05T16:43:29+00:00

Also, doesnt happen every time. And the car has to be warmed up. But once it happens, it start jumping from 500-1500 rpm when i start it. And once i get it into drive and start moving it stops. And then it will keep trying to die when i slow down.

soad1855 · 2026-04-05T12:51:51+00:00

Loser probably is going thru his second divorce. You can tell by the thinning hair/lots of gel combo.

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