98 4 banger, off idle stumble - Toyota Nation Forum : Toyota Car and Truck Forums

HotrodLSV8 · 06-13-2011, 12:34 AM

Got an issue that I'm not sure about here. This car has only about 76k miles on it. Recent timing belt water pump and bearings, plugs and wires, some vacuum hoses, and a bunch of filters and other stuff. All OE Toyota parts.

Anyway. Engine warm, very light throttle coming off idle accelerating from a stop. Under about 1500 rpm I get a small stutter/stumble out of it. Kinda feels like half of a misfire. If I go up a steep hill at like 2 mph, I can get it to do this indefinitely. During normal driving it might do it once of twice and it drives just fine after.
If I lay into it right off idle it will kinda bog a little until it gets up to about 2000 rpm then it picks up and goes just fine.
I'm going to try cleaning the throttle body/IAC after seeing one of the write-ups here.

Just wonder if anyone else has experienced this and found the problem.

Thanks for any input.

HotrodLSV8 · 06-13-2011, 10:35 PM

Guess I'm on my own here.
Might try a bottle of Seafoam or BG 44K before I pull the IAC apart.