Car Shuts Down At Red Lights/Stop Signs/IDLE, Help Car Shuts Down... Options

[themanjsq]

Hello, I've recently bought a 1994 Celica ST, The car sometimes shuts down when i come to a complete stop, the rpm would fluctuate between 800-500 shake and studder then shuts off, mostly at red lights and when the car is on drive. However, if i leave it on neutral at red lights it doesn't shut off. I've went to 2 mechanics and they fixed the tps sensor which help for a few days, but then the problem occurs again. I've went to a 3rd mechanic recently and now he's saying it's the transmission and he needs to take it out to figure out the problem charging me 695.00, which i think might be b.s. so i didn't go through with it. Spark plugs & wires are already replaced with NGK, transmission fluid was replaced with toyota transmission fluid, oil change/oil filter replaced as well, ANY HELP OR SUGGESSTIONS please thank you.

This post has been edited by themanjsq: Nov 1, 2011 - 5:16 PM

[ricochet1490]

Idle air control valve. Guaranteed. I drove a maxims that would not run atall unless my foot was in the gas. Clutch in, stall, not moving stall, foot to the floor it ram like our always should. Iac should be.around 100. Just look it up at on auto zone . Com and get an aftermarket one or try to clean and refurbish yours

[themanjsq]

Idle air control valve. Guaranteed. I drove a maxims that would not run atall unless my foot was in the gas. Clutch in, stall, not moving stall, foot to the floor it ram like our always should. Iac should be.around 100. Just look it up at on auto zone . Com and get an aftermarket one or try to clean and refurbish yours

the idle air control valve at autozone is pretty cheap compared to others, duralast for $124.99 or should i get STANDARD for which ranges from $200-300. do you get what you paid for? or it doesn't matter the brand?

[ricochet1490]

Idle air control valve. Guaranteed. I drove a maxims that would not run atall unless my foot was in the gas. Clutch in, stall, not moving stall, foot to the floor it ram like our always should. Iac should be.around 100. Just look it up at on auto zone . Com and get an aftermarket one or try to clean and refurbish yours

the idle air control valve at autozone is pretty cheap compared to others, duralast for $124.99 or should i get STANDARD for which ranges from $200-300. do you get what you paid for? or it doesn't matter the brand?

its a used car. 5s or 7a I'm assuming. If it can't be cleaned to where it operates reliably then get a new one. As to which one, I would ABSOLUTELY not get the "standard" one. It's an iac. At that price you could buy two before you made the cost of the other one. i've never had a problem with autozone/napa/advanced auto parts on my DD. If you raced this thing it would be one thing. Easy life of DD, get the cheaper one. It'll work fine.... but that's just my .02

[themanjsq]

Idle air control valve. Guaranteed. I drove a maxims that would not run atall unless my foot was in the gas. Clutch in, stall, not moving stall, foot to the floor it ram like our always should. Iac should be.around 100. Just look it up at on auto zone . Com and get an aftermarket one or try to clean and refurbish yours

the idle air control valve at autozone is pretty cheap compared to others, duralast for $124.99 or should i get STANDARD for which ranges from $200-300. do you get what you paid for? or it doesn't matter the brand?

its a used car. 5s or 7a I'm assuming. If it can't be cleaned to where it operates reliably then get a new one. As to which one, I would ABSOLUTELY not get the "standard" one. It's an iac. At that price you could buy two before you made the cost of the other one. i've never had a problem with autozone/napa/advanced auto parts on my DD. If you raced this thing it would be one thing. Easy life of DD, get the cheaper one. It'll work fine.... but that's just my .02

thanks for that info, really helped me a lot making my decision, so i went on and bought the duralast iacv from autozone for 124.99 and my mechanic said he'll install it for 60.00, the part comes within a few days 2-day free shipping w/ shoprunner 30day trial which im going to cancel immediately lol. i'll post update when it's installed and HOPEFULLY this will solve this very annoying problem. I can't thank everyone enough for their tips/help, this is a really good forum site with quick and helpful responses.