Smokes - Valve Seals? - Ford F150 Forum - Community of Ford Truck Fans



Smokes - Valve Seals?

Reply
 
 
 
Thread Tools Search this Thread
Old 02-27-2011, 03:24 PM   #1
DMO
Junior Member
Thread Starter
 
Join Date: Feb 2011
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default Smokes - Valve Seals?

When I start up my truck when it's cold it smokes pretty good for a couple of minutes. However, if it is a warm day it doesn't smoke at all. When I changed my plugs/wires/cap/rotor last week two of the 8 plugs had oil residue on them. They weren't soaked/wet but you could sure smell it and they were black not the faint brown they should be.

Could this be valve seals or some other problem?

Truck is a 1990 4x4 with 5.8L engine.

Thanks
DMO is offline   Reply With Quote
Old 02-27-2011, 03:34 PM   #2
Senior Member
 
Join Date: Feb 2011
Location: Louisville, KY
Posts: 100
Thanks: 0
Thanked 0 Times in 0 Posts
Default

yep sounds like the valve seal to me if its only for a couple minutes at start up!!
ridge903 is offline   Reply With Quote
Old 02-27-2011, 03:56 PM   #3
I Like Tires
5 Year Member
 
BassAckwards's Avatar
 
Join Date: Aug 2010
Location: Texas
Posts: 4,851
Thanked 235 Times in 209 Posts
Default

How long is a couple minutes? Are you sure its not just Condensation? All vehicles have water vapor smoke when its cold.
BassAckwards is offline   Reply With Quote
Old 02-27-2011, 05:23 PM   #4
DMO
Junior Member
Thread Starter
 
Join Date: Feb 2011
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Depending on the weather it smokes heavily for 2-5 minutes. I was hoping it was just condensation but the huge plume of smoke pouring out the exhaust when I'm driving down the road makes me think otherwise.
DMO is offline   Reply With Quote
Old 02-27-2011, 05:57 PM   #5
Member
 
Join Date: Feb 2011
Location: Staunton, IL
Posts: 59
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I had a truck once that had bad valve steem seals. I put in a can of risoline and it really helped. Didn't stop it but then, i wasn't smoking out the neighborhood anymore either.
Delmarosalinda is offline   Reply With Quote
Old 02-27-2011, 06:48 PM   #6
I Like Tires
5 Year Member
 
BassAckwards's Avatar
 
Join Date: Aug 2010
Location: Texas
Posts: 4,851
Thanked 235 Times in 209 Posts
Default

If its white smoke, its water. If its black then I would probably believe its bad valve seals. However, the fact that you only see it on cold days makes me believe it is Condensation.
BassAckwards is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2006 Roush build ng8264723 2004 - 2008 Ford F150 28 12-21-2015 02:22 AM
2002 f150 4.6 idle issues - CAN'T FIND PROBLEM Boochie57 Maintenance Shop 3 11-28-2015 09:22 AM
rear end locked up!!!!! Hank Burns 2004 - 2008 Ford F150 4 09-28-2015 09:38 PM
EVAP PO442 How does it work? geomcnasty 1997 - 2003 Ford F150 0 09-27-2015 06:21 PM
Replaced Evap valve and Filler Pipe Ky Bob General F150 Discussion 2 09-25-2015 11:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:42 PM.


Copyright 2006 - 2016 F150Forum.com