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1995 Toyota 4Runner Popping in Air Filter Box

Tiny
FFC203
  • MEMBER
  • 1995 TOYOTA 4RUNNER
I have a 95 Toyota 4Runner V6 with approx. 128,000 miles on it and I have had no problems till now. The vehicle is hesitating between 10 mph to about 30 mph and it will not go any faster, then I start hearing this popping noise(like a back fire) in the air filter box but if you pump the gas pedal it will speed up and the noise stops but will kinda sputter a little while driving. It has not ever died or anything while stopped. It will idle great, but if you accelerate while in netrual the popping noise can be heard again in the air box. I have replaced air filter, wires, plugs and distributor cap plus the fuel filter. I have also cleaned out the cat. Converter, but I still have that funny smell too. Could it be a MAF sensor, TP sensor, the O2 sensor or the fuel pump going bad? Please I need help before I crash and burn!
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Saturday, November 17th, 2007 AT 9:07 PM

2 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Have u checked the fuel pressure yet u need to do so
the popping is misfire u need to find why is it misfiring
u did the tune up
so check fuel pressure and check timing
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Saturday, November 17th, 2007 AT 10:22 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Have u checked the fuel pressure yet u need to do so
the popping is misfire u need to find why is it misfiring
u did the tune up
so check fuel pressure and check timing
unplug the mass sensor and try driving it see if u pick up speed better then its no good[/quote:ecdd766d92]
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Saturday, November 17th, 2007 AT 10:24 PM

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