1990 Toyota Corolla loses power going uphill

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.

6 Replies

MHPAUTOS

MECHANIC
31,938 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

MMPRINCE4000

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8,549 POSTS

Also check the TV cable adjustment to trans.

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Saturday, December 4th, 2010 AT 1:54 PM

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

MMPRINCE4000

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8,549 POSTS

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

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