1990 Toyota corolla loses power going uphill

1990 TOYOTA COROLLA
143,000 MILES • 4 CYL • FWD • AUTOMATIC
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SAMMS21
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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.
Dec 2, 2010 at 9:25 PM
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MHPAUTOS
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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)
Dec 2, 2010 at 10:19 PM
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MMPRINCE4000
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Also check the TV cable adjustment to trans.
Dec 4, 2010 at 5:54 AM
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SAMMS21
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Im not sure how to adjust it do you know where it is located or how to adjust?
Dec 4, 2010 at 12:02 PM
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MMPRINCE4000
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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.
Dec 5, 2010 at 6:39 AM
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SAMMS21
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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
Dec 6, 2010 at 8:22 PM
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MHPAUTOS
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A plugged cat will also be flat under normal flat driving conditions as well.

Mark (mhpautos)
Dec 6, 2010 at 11:44 PM
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