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1996 Subaru outbook idling losing some power and shaking. Has been skipping some for about three weeks

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  • 111 Answers

It probably needs new spark plugs. Subaru's foul the #4 plug quite often after around 100,000 miles.
If that doesn't do it you most likely have burnt valves.

Posted on Nov 02, 2015

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MNfisherman
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SOURCE: 1996 Ford Explorer vibrates when idling. Also...

You have a hesitation. A hesitation is cause be either:
1. bad spark plug
2. bad spark plug wire
3. bad or leaky or plugged injector
4. timing is off
5. leaky vacuum hose

Posted on Mar 04, 2009

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Can too much oil cause rough idle , sputtering and shaking in vehicle ?


I most case No but if the motor is a high mileage motor it could oil foul the plug once that happen it would continue to run poor tell the plug or plugs were cleaned or replace.

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SOUNDS LIKE YOU HAVE IT NARROWED DOWN TO THE EXHAUST SYSTEM.THE CONVERTER IS PROBABLY PLUGGED,CHECK THE TEMPS. COMING IN AND OUT.THEY SHOULD ONLY BE A FEW DEGREES DIFFERANT,IF THEY'RE ALOT HIGHER COMEING OUT IT'S PLUGGED.

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1 Answer

My 2003 subaru forester idle very rough. if you open the hood and look at the engine it is shaking like its firing on only three cylinders. I need some help.I changed the spark plugs, gas filter, air...


1) Check all the vacuum hoses for a leak in the rubber hose or a hose that isn't connected. Vacuum leaks cause motors to shake and stumble on acceleration.
2) There's a plastic T connection on the back side of the engine behind and under the air cleaner box. That T connector joins together three air hoses of different sizes and is prone to breaking from heat stress. Only a Subaru dealer will have this part.
3) Even though the spark plug wires are new, you may have a bad one. Don't waste your money on cheap parts; they cost more in the long run.
Good luck!

Apr 23, 2009 | 2003 Subaru Forester

1 Answer

1996 Ford Explorer vibrates when idling. Also have noticed that when I go 80 mph, it "jumps" every few seconds. Like it skips a beat. I don't know how to explain it but it seams to "stall" like if you were...


You have a hesitation. A hesitation is cause be either:
1. bad spark plug
2. bad spark plug wire
3. bad or leaky or plugged injector
4. timing is off
5. leaky vacuum hose

Mar 04, 2009 | 1996 Ford Explorer

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