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Intermittent loss of power/rough idle

Ohhnulix

Member
Joined
Dec 9, 2020
Messages
40
Reaction score
6
Points
8
Location
Dade city
Vehicle Year
2002
Make / Model
Ford ranger
Transmission
Automatic
02 4.0, 180k miles. I’ve been chasing this issue for awhile now and I’m running out of ideas. It seems like 50 percent of the time it runs amazing, idles perfect, great power, no issues whatsoever. But then other times I have to get up into the 2700-3000 rpm range before it seems like it had any power, it chugs gas, and idles very rough. Doesn’t die but drops down in the 500 rpm range and shudders enough to shake the whole truck, only check engine light is a gas cap code
 

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