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SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

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Old 08-17-2015
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I am: rob fogg
Join Date: Aug 2015
Location: west haven ct
Vehicle: 1994 ford ranger
Drive Type: 2 w
Engine: 4cy
Posts: 1
Total Props: 0
lacking power

I have a 1994 ranger up to a week ago ran great now all of a sudden it has like no horse power and back fire on highway and bucks when u drive i got someadvice from a fried who said to try the fuel filter thats wut im gonna do today but if anyone has more ideas let me no pls and ps the fuel filter i bought looks diffrent frim the one under door any ideas
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Old 08-17-2015
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I am: Ron Dean
Join Date: Jan 2014
Location: Vancouver, BC
Vehicle: 1994 Ford Ranger
Drive Type: 4x4
Engine: 4.0
Posts: 4,767
Total Props: 88
Yes, fuel filter should be changed every 5 years or so.

I would get a Vacuum gauge(under $25) and see what kind of vacuum you have at idle.

Good read here on tests to do and what results mean: Technical Articles: Engine testing with a Vacuum Gauge - at Greg's Engine & Machine

Low vacuum at idle could be timing belt has stretched so time to replace it.
Raising RPMs to 2,500 and then hold it there while watching vacuum gauge, if it starts to drop then you have clogged exhaust.

Has the MPG started to go down recently?

Have you been able to check if there are any codes in the computer?
Some auto parts stores have OBDI readers, they will check codes for free, WRITE them down.

On a '94 you should be able to get any codes yourself using the "Check engine light"(MIL/CEL)
It will flash out any codes, current and in history.
Read here: Ford Ranger - Testing EEC-IV Equipped Engines

There are also videos on you tube that show what to do.
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