The Garage > Technical Advice and Questions

Won't go over 55 mph

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Peyton:
Anyone know why my cj 7 looses power at 55 mph I have 258 auto trans. Replaced all Spark plugs wires distributor cat and vacuum lines. I did leave vacuum advance n power boaster. I'm being told their should be one for trans but can't find one anywhere.
Thanks
Dave

PaulW:
Is it physically shifting into high gear?

Peyton:
Yes just no power after 55 below 55 it's good

PaulW:
It's not revving to 5000 rpm at that speed?

Peyton:
No I'm only turning about 1700 rpm I'm thinking it may be my carb

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