Myron

Heres the deal, If i hit the gas it takes a few seconds to accelerate then all of a sudden it gets all its power back..do i have a leak some where or whats going on?

Tacoclimber

Perhaps a clogged fuel filter?

Bear80

how is it when you crank it cold? Does it stumble?

misterzee

is it running smoothly even when it is trying to find its power? if its rough, and then smooths out, its probably a plug, or wire, or cap, or injector.

Myron

It kinda stumbles on on start up (caold) then its fine, but when i accelerate it goes then looses power then shoots rite back up with power...

Bear80

if it stumbles on cold start up, and a loss of power it could be your fuel pressure regulator.

rdlsz24

Check the plug-in on your cold start injector temp sensor. I had the same problem when mine came unplugged.

It's the green plug in the red box in this pic:


Rob

all_terrain17

I kinda get the same problem sometimes on warm start up. Way down on power for about a minute it seems...then it's fine

pruney81

I have the exact same problem on my 95 3.0, it just started a two days ago. First cold start in the mornings it stumbles, and if I hit the gas while driving it hesitates for a few seconds then kicks back on like normal. This could be the fuel pressure regulator? Where is that?

jrod1407

having the same problem on my 1990 v6 two door 4runner. it's not a huge problem but definitely annoying hopefully someone can figure it out.

jrobertson4runnner

I would say check the fuel filter. My '91 3.0 did that for awhile, and then it got to the point where it wouldn't start. new fuel filter, and presto, she ran again.... then died on me 6 months later. thrust bearings were bad, and a whole lot else too. My Dad's '90 3.0 is doing that now, just been too lazy/busy to change the filter. May also be the regulator, so check that too.