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engine runs rough when cold


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Posted

When I start up my 91 5 speed, it literally vibrates the whole car for a bit until it gets warm... Then it idles at 1100 or so and just purrs... Any ideas why it would do that on cold starts? For some reason I'm thinkin its MAF sensor.

Posted

Welcome to the my old LQ1 club. Mine does that in the winter, but not on "cold" starts in the warm months.

Posted

nvr mnd... engine doesnt run rough anymore... it just doesnt run... it seems extremely hard to turn over, if it turns over

Posted

nvr mnd... engine doesnt run rough anymore... it just doesnt run... it seems extremely hard to turn over, if it turns over

 

Ouch! Done any troubleshooting on it yet?

 

Nice update! :bonk:

 

Man, you're evil... although it was funny! :lol:

Posted

im gonna jump it tomorrow to see if its just the battery having too low of voltage... with 177k on it, it could also be a fuel problem... what else would cause it to turn over really slow?

Posted

It depends on why it is cranking slowly. Either the starter is working hard against to much load, or it isn't getting enough power. Well, that and the starter itself could be dying, but thats a different thing altogether; you'd likely have noticed odd behavior from the starter before if that was the case.

 

I think your idea of trying to jump the car would be the right place to start. Make sure that the battery is providing enough power, and make sure the power is getting to the starter (solid connections and good wiring), and go from there.

Posted

another thing t o check is to make sure you dont have A seizing pulley by releasing belt tension and manually spinning the pulleys, Just a thought

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