Whoamidevine Posted May 28, 2013 Share Posted May 28, 2013 the truck is fine with everything else but just can"t maintain even 55 with the pedal to the floor in 5th Link to comment Share on other sites More sharing options...
coyote kid Posted May 28, 2013 Share Posted May 28, 2013 clean throttle body mabey your gearing is to high Link to comment Share on other sites More sharing options...
AeroNautical Posted May 28, 2013 Share Posted May 28, 2013 Wait a minute, up hill in fifth? Down shift to fourth, fifth is really just a cruising gear. Link to comment Share on other sites More sharing options...
coyote kid Posted May 28, 2013 Share Posted May 28, 2013 :agree: Link to comment Share on other sites More sharing options...
Echostrike Posted May 28, 2013 Share Posted May 28, 2013 Mine does the same thing. But I have yet to clean the engine at all. Interested in responses. Link to comment Share on other sites More sharing options...
jimoshel Posted May 28, 2013 Share Posted May 28, 2013 1st; Tune engine 2nd; Downshift. My DD is a '87 with 2.5 and AX4. Does 80-85 on level road and takes a steep hill to drop it to 65mph. Link to comment Share on other sites More sharing options...
Dirteatr717 Posted May 29, 2013 Share Posted May 29, 2013 In my 89 with 4.0 ax15 with 33s and 3.07s I can get it to gain speed uphill in 4th if you use the skinny pedal BEFORE the hill and keep the rpms above 2200... Downshift and use your right foot :thumbsup: Link to comment Share on other sites More sharing options...
HOrnbrod Posted May 29, 2013 Share Posted May 29, 2013 What's your mileage and do you have the original catalytic converter? Link to comment Share on other sites More sharing options...
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