Rough engine in damp weather
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Mountain Pass
Joined: May 2005
Posts: 122
Likes: 23
Rough engine in damp weather
My V10 which I got in June 2005 does not like damp weather. Now that fall has brought with it more damp mornings days, it does not run smooth at all for the first mile or so. It runs very rough with little or no power. All spark plug assemblies were replaced just prior to my buying it. Any thoughts would be appreciated.
Cheers
Cheers
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
Maybe whoever replaced the sparkplug assm.didn't reinstall them correctly!
If the rubber boots are not seated properly moisture can get in
They also could be cracked or burned through.
Also dielectric grease is used when replacing them,they might not have did that.
Chk also your IAC valve it may be dirty,
Rich
If the rubber boots are not seated properly moisture can get in
They also could be cracked or burned through.
Also dielectric grease is used when replacing them,they might not have did that.
Chk also your IAC valve it may be dirty,
Rich
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Besides what everyone else said:
The rubber boots are like $3-5 each, they should be replaced whenever you do the plugs or change the COPS, and dialectric grease used.
And, please explain what you mean by spark plug assemblies - do you mean the coil that sits on top of the plug or just the plugs?
Checking the IAC is a good idea! It's not just "damp" weather, it's also getting cooler, and the IAC will definitely effect cold running, although it's usually just idle, not while moving, but I guess it's possible.
Plus, all the general vacuum leak checks, like the dreaded PCV elbow. Throttle position sensor getting flakey? If you still can't solve it, check the MAF connector for corrosion or dampness, check every connector, for that matter.
As always, PLEASE let us know how it turns out!
art k.
The rubber boots are like $3-5 each, they should be replaced whenever you do the plugs or change the COPS, and dialectric grease used.
And, please explain what you mean by spark plug assemblies - do you mean the coil that sits on top of the plug or just the plugs?
Checking the IAC is a good idea! It's not just "damp" weather, it's also getting cooler, and the IAC will definitely effect cold running, although it's usually just idle, not while moving, but I guess it's possible.
Plus, all the general vacuum leak checks, like the dreaded PCV elbow. Throttle position sensor getting flakey? If you still can't solve it, check the MAF connector for corrosion or dampness, check every connector, for that matter.
As always, PLEASE let us know how it turns out!
art k.
