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Loses power on hills

(1991 Toyota 4Runner)
in La Grande, OR on September 02, 2013
I loses power going up hills. The bigger the hill slow it get and uses more fuel on the bigger hills. runs great other wise.
Displaying 1 answers & 0 comments
Popular Answer
on September 03, 2013
possible vacuum leak, map sensor, or problem with ignition system
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