1990 Ranger shudders when accelerating
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1990 Ranger shudders when accelerating
I have 4.0 V6 1990 Ranger. Have had the truck for a year now and after about 6 months it started running bad. Fuel economy went down from a consistent 20 mpg to around 13-14 mpg. Had to send the it to the mechanic when it just died on me without warning, he replaced the spark plugs and wires and it worked fine for a bit but went back to running bad soon.
As the title says it shudders when accelerating especially if a floor it and always when going from 55 to 65 mph. A friend thinks it is a misfire/dead cylinder but my ear is not good enough to identify that from engine noise. Does anyone have suggestions how to diagnose it or has anyone experienced a similar problem?
TIA
As the title says it shudders when accelerating especially if a floor it and always when going from 55 to 65 mph. A friend thinks it is a misfire/dead cylinder but my ear is not good enough to identify that from engine noise. Does anyone have suggestions how to diagnose it or has anyone experienced a similar problem?
TIA
New User
Joined: Dec 2019
Posts: 8
Likes: 0
I have 4.0 V6 1990 Ranger. Have had the truck for a year now and after about 6 months it started running bad. Fuel economy went down from a consistent 20 mpg to around 13-14 mpg. Had to send the it to the mechanic when it just died on me without warning, he replaced the spark plugs and wires and it worked fine for a bit but went back to running bad soon.
As the title says it shudders when accelerating especially if a floor it and always when going from 55 to 65 mph. A friend thinks it is a misfire/dead cylinder but my ear is not good enough to identify that from engine noise. Does anyone have suggestions how to diagnose it or has anyone experienced a similar problem?
TIA
As the title says it shudders when accelerating especially if a floor it and always when going from 55 to 65 mph. A friend thinks it is a misfire/dead cylinder but my ear is not good enough to identify that from engine noise. Does anyone have suggestions how to diagnose it or has anyone experienced a similar problem?
TIA
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Bruker
1983 - 2012 Ranger & B-Series
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Jul 19, 2004 04:11 PM
