00 Impreza 2.5RS Hesitation

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07-06-2004 | 02:37 PM

Cpowers

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00 Impreza 2.5RS Hesitation

I've seen a couple of postings here about this problem. My car hops when it is idling and when I acclerate from a stop it hesitates. I have had the ignition switch replaces as well as the spark plugs. Still no help. It seems to run well for a day or so, but then starts acting up again. Recently it has gotten so bad that the car dies after I start it, and feels like it is going to die when I accelerate. Does anyone know for sure what this problem is...I don't want to keep dumping $5-600 in it to see if that will work! BTW - it is an automatic.

07-06-2004 | 10:33 PM

BreatheBabylon

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Subaru hesitation

I had a problem everytime I tried to acclerate hard, I switched out my aftermarket intake, dumped fuel injector cleaner in the tank, and changed the fuel filter. Havent had a problem yet and it's been a week, maybe yours is a little more severe but fuel filter and injectors should help if it's a lack of fuel problem that makes it hesitate.

08-22-2004 | 03:25 PM

silverrim2000

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Quote:

Originally Posted by Cpowers

hey there... i have a 2000 2.5 rs myself.. and i have had problems like yours. Hesitation under hard accleration. It was the Plug wires and the crap Champion Plugs installed @ the factory. The Plugs were fowled @ 40,000km and when that happed the wires cooked... so where the plug wires met the block they would arc and cut out= hesitation. No spark= no go. (Problem was worse in the rain)
i put in NGK Blue Lines and irridium plugs. Problem solved.

11-01-2004 | 09:05 PM

skrapps00RS

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Joined: Oct 2004

Posts: 37

From: Masshole

Car Info: 2000 Impreza 2.5 RS

i agree with silverrim, i see that you already changed your plugs id go ahead and change the wires as well. Some new wires might make a large difference, i recommened making a diagram of how the wires looked before you replace them. Also noting which length wire was in which position. A buddy of mine once screwed his up and it was a pain to get them back in the right order and placement. Might also try replacing the cap that the wires are pluged into, AS far as I know these items are somewhat inexpensive compared with getting something major replaced.

~skrapps