The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-01-2014, 04:23 PM   #1
snow89
Registered User
 
Join Date: Mar 2014
Location: Tracy, CA
Posts: 5
How worried should I be?

I usually drive my truck on the weekends. its a 454, when I first start it, after its been sitting for the week, it blows liquid out of the exhaust. the liquid looks like a mix of water and oil. It goes away after it warms up. Does this sound like a serious issue? Thanks
snow89 is offline   Reply With Quote
Old 11-01-2014, 04:28 PM   #2
hamjet
Registered User
 
hamjet's Avatar
 
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
Re: How worried should I be?

Its probably the cooler weather, condensation. what looks like oil is probably the water mixing with soot in the exhaust pipe..
__________________
Thanks, Joe..
1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB.
hamjet is offline   Reply With Quote
Old 11-01-2014, 05:36 PM   #3
Tinkermc
Registered User
 
Join Date: Jul 2011
Location: Farmville, Va
Posts: 3,026
Re: How worried should I be?

I would not worry unless it happens when it's warm.
Tinkermc is offline   Reply With Quote
Old 11-01-2014, 06:57 PM   #4
basketcase
Registered User
 
basketcase's Avatar
 
Join Date: Oct 2001
Location: Edgerton OH USA
Posts: 628
Re: How worried should I be?

I agree that it's more than likely condensation. I see that on my vehicles too. Just be sure to drive it long enough to completely dry out the exhaust system when you do start it.

Tom
__________________
'69 swb stepside in progress.
'59 Corvette lifetime project
basketcase is offline   Reply With Quote
Old 11-01-2014, 06:59 PM   #5
Steeveedee
Who Changed This?
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,324
Re: How worried should I be?

It can still happen when it is warm out. The water in the exhaust has to get hot enough to turn to vapor you don't see. This is a good indication that you don't have any exhaust leaks, or the condensation would be running out somewhere else.
__________________
~Steven

'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
Steeveedee is offline   Reply With Quote
Old 11-01-2014, 08:39 PM   #6
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
Talking Re: How worried should I be?

Years ago mufflers had pin holes in them for this very thing.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 11-01-2014, 10:11 PM   #7
snow89
Registered User
 
Join Date: Mar 2014
Location: Tracy, CA
Posts: 5
Re: How worried should I be?

Thanks guys. I appreciate the info.
snow89 is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 07:15 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com