Hiccups while driving?

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96B-Mike
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Hiccups while driving?

Postby 96B-Mike » Sun Apr 06, 2014 8:26 pm

While driving high speeds (highways) my car seems to have some kind of hiccup (like as if skipped a beat) and it does it like every couple seconds?


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1988GTU
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Re: Hiccups while driving?

Postby 1988GTU » Sun Apr 06, 2014 8:39 pm

egr kickin in or fuel mixture changing abruptly.. injector


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Koots
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Re: Hiccups while driving?

Postby Koots » Mon Apr 07, 2014 7:12 am

How old is your fuel pump or fuel filter? I've had dying fuel pumps act like that but they didn't last much longer after exhibiting symptoms like that. A clogged fuel filter will also cause this, but it's mostly evident under heavy load.



96B-Mike
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Re: Hiccups while driving?

Postby 96B-Mike » Mon Apr 07, 2014 9:58 am

Everything about the egr is brand new, and just recently fixed an injector problem?

Fuel pump probably has never been changed.. I do remember changing the fuel filter about 4 years ago lol


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Rettax3
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Re: Hiccups while driving?

Postby Rettax3 » Tue Apr 08, 2014 7:03 pm

I am betting on a sticking/clogged injector or a spark problem -check all plug wires, ICM-to-crank sensor line, swap out the coils if you have known-good spares. Also try pulling the spark-plugs and reading them to see if you can pin it down, but basically it sounds like one of your cylinders is misfiring. Corrosion or wire-damage on one of the injector control wires to the PCM could do this too, especially since it is so intermittent.


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96B-Mike
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Re: Hiccups while driving?

Postby 96B-Mike » Tue Apr 15, 2014 1:49 pm

if one of my cylinders were to misfire...wouldnt it idle rough? because it idles perfect?


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Re: Hiccups while driving?

Postby 3X00-Modified » Tue Apr 15, 2014 2:20 pm

Some conditions at cruise are more strenuous than at idle which will point out or generate a skip easier.



96B-Mike
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Re: Hiccups while driving?

Postby 96B-Mike » Tue Apr 15, 2014 6:06 pm

ah okay, thank you...ill give the troubleshooting a try ASAP


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