2005 Ranger surgin/jerking at 35-65 mph
Hi, I have been having this problem for about a month and a half now. It seems that when I am at a medium speed say, about 50 mph (though iv'e had it anywhere from 35-65 mph), and once it shifts into a higher gear it will start to "surge" almost as if the trans is slipping or the engine is misfiring a cyl. This typically happens when there is a high load at a lower rpm it seems. It has become increasingly worse over time. Also, the engine light has started to come on, so I have hooked it up to 2 diff OBD2 readers, but no such luck because there is no power or signal coming from the connector ( It did work last year ). I have also noticed a decrease in my mpg.
I have replaced the spark plugs so far. I also checked the fuse for the OBD2/cig lighter and it is not blown, although I noticed that there was a 30amp fuse installed instead of a 20amp (recommended), just thought I would through that in. Anyway, this surging/jerking is worrying me and would love to fix it soon!
Any help would be greatly appreciated! Thanks - James
2005 Ranger xlt 2wd 4cyl automatic 136,000 miles.
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