1999 Chevy Astro 1999 Chevy Astro Van Runs Rough When Cold

Thanks for the reply.

Happens in cold weather, especially cold/wet.

Takes approx 15-20 minutes of running - actual driving to clear up.

6-8 months ago had a major tune up with plugs/plug wires/distributor/rotor replaced.

It had all original parts in it at 167,000 miles.

Mike.

Sorry for the late reply.

This all began several weeks ago when I noticed the van running rough when cold and would be fine when it warmed up.

On 11/13 I went out to start the van and "click".I thought it was the starter and it was.

Had AAA tow the van into the shop and the starter was replaced.

This van is used commercially for our lawn greetings business and we need to have it up and running. But, unfortuantely, I'm no mechanic.

I then had then check out why the van was running rough. They replaced the ignition rotor and distributor cap and no more running rough.

They also read the codes and found - P0456 EVAP Leak Monitor Small Leak Detected - How critical is this to be replaced or checked out?

On the test drive, it was noticed that there may be a problem with the alternator. The gauge was registering 14 or better when running and then would drop to 12 or less when stopping.

Alternator replaced. Expensive week, I'll tell ya.

What I don't understand is the rotor/distributor cap replacement. This was just replaced 6-8 months ago when we had the MAJOR tuneup. How long do they normally last?

The only thing that wasn't replaced, tuneup related, at that time was the fuel filter. They say it is fused on and if it isn't causing a problem to wait until it is.

Also found was a crack in the front stabilizer bar. How critical is this to be replaced?

Thanks In Advance.

Mike.