'99 4Runner Sputtering and stalling, thoughts?

[newelljo]

I've had a '99 Automatic 4Runner with 85k miles for about 6 months. The truck runs well with no noticeable problems but for a sporadic (once or twice a week) tendency to stall usually after coming to a stop after longer periods of driving (usually highway). It always starts back up immediately. There are times it will sputter a little when waiting at a light as well, without actually cutting out. I've had a couple mechanics including the local dealer check it out, they've done a few things, including replacing the throttle position sensor but to no avail. I get the sense I could spend dough all over replacing sensors without necessarily fixing the problem, so any help would be appreciated. Thanks.

[Brian R.]

Might be your EGR valve is clogged. Clean out the EGR with a coat hanger and carb cleaner or replace.

[Brian R.]

One thing you can try that won't cost much is cleaning your throttle body.

http://www.4x4wire.com/toyota/mainte...throttle_body/

Has your "Check Engine" light come on?

If you want to try something - try replacing the ECT sensor.

[newelljo]

Thanks for that. The problem has been around for about 6 monhts with no check engine light until a couple weeks ago. It was on for a day and went off. Took it in and it read throttle position sensor, so replaced that and the light is fine now, but the problem still persists.

[Brian R.]

ECT sensor