1990 Toyota Corolla loses power going uphill

Tiny
SAMMS21
  • MEMBER
  • 1990 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 143,000 MILES
I have a 1990 toyota corolla 143,000 miles with the 1.6 4AFE engine, It loses power going up hills. The tranny is good and the previous owner told me it had a tune up but it only loses power going up hills under 3,500rpm once it gets over 4,000 it picks up.
Friday, December 3rd, 2010 AT 5:25 AM

6 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I would be still considering a transmission problem, I would be getting it checked over by a trans specialist, go get a test and report done, this will tell you if it is a trans problem.

Mark (mhpautos)
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Friday, December 3rd, 2010 AT 6:19 AM
Tiny
MMPRINCE4000
  • MECHANIC
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Also check the TV cable adjustment to trans.
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Saturday, December 4th, 2010 AT 1:54 PM
Tiny
SAMMS21
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  • 21 POSTS
Im not sure how to adjust it do you know where it is located or how to adjust?
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Saturday, December 4th, 2010 AT 8:02 PM
Tiny
MMPRINCE4000
  • MECHANIC
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Cable attaches to throttle body cam. With engine off, rotate cam to wide open throttle. You will see a small ball attached to cable, it should extend 1mm from end of shield.
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Sunday, December 5th, 2010 AT 2:39 PM
Tiny
SAMMS21
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  • 21 POSTS
I checked the throttle valve cable and everything seems to be fine, Do you think it could be a clogged catalytic converter? I put my hand over the tailpipe and there is exhaust coming out but not much pressure at all
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Tuesday, December 7th, 2010 AT 4:22 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
A plugged cat will also be flat under normal flat driving conditions as well.

Mark (mhpautos)
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Tuesday, December 7th, 2010 AT 7:44 AM

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