Thread: 4-runner

I just got a 4-runner with a supra motor in it and it doesnt like to idle sometimes and dies when im at a light.The idle speed control valve has been replaced but didnt cure the problem.It is a 1986 4-Runner with a 1987 3.0 non-turbo inline six swap.The motor has about 5,000 miles on it.it runs real good but sometimes does not like to idle nicely.Should I just turn up the idle speed?Kinda like half assing it I guess.Any body know what it could be?Or any body know of a real good Toyota mechanic I could take it to?

does it just not idle or dose the idle surge? like idle then bogg then idle then bog over and over again when the brake is on?

It surges but not all the time. Sometimes it idles fine sometimes not.

is it cold when it has the problem or does it just have the problem at completely random times?? i would turn up idle speed and see if that fixes it.

Random.Usually it doesnt do it as much when it is cold.But it is random.

It could also be your throttle position indicator or your mass airflow sensor. I am not familiar with your motor but those are the two things that cause the same problem on Tacomas, oh and it might be as simple as a dirty air or fuel filter.

Yeah Ill have to look at those things when I get back from Laughlin,also how can u tell when yer starter is starting to go bad?If anybody sees a built 4-runner that gray(1986 2-door) hit me up Ill be in Laughlin and would like to meet some of u guys.By the way my name is Ryan

check all you vacume lines. you maf, and turnt he idle up a lil bit. my truck used to do it to. replaced the a/c idle up screw(was told that was th ename by a toyota tech) on the side of the intake manifold and it helped, turned the idle up a lil bit and its prety much went away.