Whenever I pull onto a highway and get on the gas pretty good, i get the normal acceleration but then when I get up to about 4500 RPMs the engine acts like I'm letting up on the gas for about 5 seconds. The revs come down a little, but then after the lull, they go up again. I read somewhere once that the computer can sense when knocking is about to occur. Is this why the RPMs are getting dropped down? What can I do for a fix?
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do the RPMs drop, plateau, or is there a power loss?
It's hard to describe. The RPMs come down some (say 500) and then after a few seconds of them slowly going down, they start going up again. I don't think I'm gonna die if I can't get if fixed because it's only once in a blue moon that I merge onto a highway. I'd love to hear some ideas/suggestions though.
strange, i've never experienced or heard of anything like that. i'm no mechanic but i'd think that maybe the plugs are fouled out. is the idle rough or is there hesitation at other times? that would be another sign of fouling.
out of curiousity, do those headlights do any good? i was thinking about getting some.
out of curiousity, do those headlights do any good? i was thinking about getting some.
I'm not familiar with the fouling term, but I replaced the plugs quite recently and the problem occured both before and after replacement. However, there is definitely some hesitation when at a stop and normal acceleration is applied. It actually jerks your head when you come off a stop, but I think it's actually that it's hesitating and then kicking in.
As for the headlights, they definitely have a blueish tint to them...I'd say it's more blue than than real H.I.D.s...I think the real ones are more purple than these. The replacements are definitely brighter than stock. I like them, but I managed to blow one out 3 days after I got them...good thing for the warranty. The thing that bothered me about them was that they made my fog lights look extremely dim in comparison. I finally figured out the fog light situation today so I just now ordered the matching fog lights. I recommend autobarn.com if you decide to do replacement fog lights and headlights.
As for the headlights, they definitely have a blueish tint to them...I'd say it's more blue than than real H.I.D.s...I think the real ones are more purple than these. The replacements are definitely brighter than stock. I like them, but I managed to blow one out 3 days after I got them...good thing for the warranty. The thing that bothered me about them was that they made my fog lights look extremely dim in comparison. I finally figured out the fog light situation today so I just now ordered the matching fog lights. I recommend autobarn.com if you decide to do replacement fog lights and headlights.
i'd replace your plug wires. also, as someone else suggested i'd run a tank of fuel system cleaner. if that doesn't help i'd probably get the fuel filter replaced.
When you say that the car idles rough at stop signs and lights, that sounds like a vaccum leak or intake gasket leak. If you haven't replaced the intake gasket yet I would consider that as the possible answer to your problem. Here is more info on how to do it...http://www.allpar.com/fix/gasket35.html
I agree with Mopar4u, Vacum, or sensor problem..
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