99 Frontier...

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tranch - 25 Feb 2005 00:23 GMT

...with 57K miles and it has this problem that is driving me up the
wall.

I drive the truck on the highway then park it. When I come back to the
truck and start it, it feels like it's running on only 5 cylinders. After a
minute or two of normal driving it smoothes out and runs smooth as it did
when it was new. Any idea what might be causing this?

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JimV - 25 Feb 2005 01:01 GMT

> ...with 57K miles and it has this problem that is driving me up the
> wall.
[quoted text clipped - 3 lines]
> minute or two of normal driving it smoothes out and runs smooth as it did
> when it was new. Any idea what might be causing this?

Original plugs?

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tranch - 25 Feb 2005 03:05 GMT

>> ...with 57K miles and it has this problem that is driving me up the
>> wall.
[quoted text clipped - 5 lines]
>
> Original plugs?

No, been tuned once.

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JimV - 25 Feb 2005 03:48 GMT

>>> ...with 57K miles and it has this problem that is driving me up the
>>>wall.
[quoted text clipped - 7 lines]
>
> No, been tuned once.

I wonder what plugs they put in it. It should have NGKs, others can
cause problems. I would guess that either one cylinder is misfiring or
one injector is sticking for a bit. If it were my truck, I'd check it
for codes and if there were none, I'd replace the plugs. Could even be a
loose plug (heat eventually expands the head until it seals).

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