White Smoke out exhaust. - MustangForums.com

Notices
4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

White Smoke out exhaust.

Reply

 
 
 
Old 09-07-2006, 03:58 PM
  #1  
chrissilver3975
2nd Gear Member
Thread Starter
 
Join Date: Sep 2006
Location:
Posts: 168
Default White Smoke out exhaust.

Here's the deal. I lost my license two months ago (speeding). My 98 GT had been sitting in my driveway for two weeks. I had to use it one day and had my friend drive. We took it 20 miles with no problems but when we started it up the next day it started pouring white smoke out of the exhaust. I took it to a local auto parts store and had them test it with their computer. They said it was bad oxygen sensors. After ordering new ones and installing them I started up the car and let it run with no improvements. I just installed them today so I havent had it checked with a computer yet but need some help. Called a friend and they said it could be spark plugs that arent working properly or fuel injectors that need to be cleaned. Because it has been sitting I would guess fuel injector cleaner but I'm broke until tomorrow so I want to check with the forum before I go and buy more stuff. Thanks
chrissilver3975 is offline  
Reply With Quote
Old 09-07-2006, 04:08 PM
  #2  
firstonraceday96
2nd Gear Member
 
Join Date: May 2006
Location:
Posts: 268
Default RE: White Smoke out exhaust.

first off the shop you went to is a bunch of dumbasses, Ive heard so many times of people takin a car to a shop when the car was smoking and they say 02 sensors. If its white smoke then most likely burning coolant id do a compression test, as for the plugs and injectors they should have nothing to do with your problem. Most likley a coolant leak somewhere.
firstonraceday96 is offline  
Reply With Quote
Old 09-07-2006, 04:11 PM
  #3  
Dan04COBRA
Super Moderator
 
Join Date: Jul 2003
Location:
Posts: 14,917
Default RE: White Smoke out exhaust.

They told you it was bad O2 Sensors? Hah!

Then your friend said spark plugs and maybe your injectors?

Okay, don't ask that store for advice & tell your friends to stick with riding their bicycles, because they just made ya waste some money.

White smoke = coolant. Most likely a head gasket. However, cars with age, when they sit, will tend to puff a little white or little blew smoke on start-up after sitting for a while. I'd start the car, let it idle a bit, rev it and see if the smoke goes away or stays the same before you go tearing into the engine at the moment, if you are strapped for cash.
Dan04COBRA is offline  
Reply With Quote
Old 09-07-2006, 04:15 PM
  #4  
chrissilver3975
2nd Gear Member
Thread Starter
 
Join Date: Sep 2006
Location:
Posts: 168
Default RE: White Smoke out exhaust.

Well we did a compression test and no leaks. I let it idle and rev it and still white smoke..
chrissilver3975 is offline  
Reply With Quote
Old 09-07-2006, 04:17 PM
  #5  
Derf00
6th Gear Member
 
Join Date: Feb 2005
Location: AZ
Posts: 11,434
Default RE: White Smoke out exhaust.

Then it's not the head that's leaking. It's probably the intake water ways are leaking and the moisture from the intake is getting sucked into combustion chamber.
Derf00 is online now  
Reply With Quote
Old 09-07-2006, 04:19 PM
  #6  
firstonraceday96
2nd Gear Member
 
Join Date: May 2006
Location:
Posts: 268
Default RE: White Smoke out exhaust.

what were you're compression numbers?
firstonraceday96 is offline  
Reply With Quote
Old 09-07-2006, 04:21 PM
  #7  
chrissilver3975
2nd Gear Member
Thread Starter
 
Join Date: Sep 2006
Location:
Posts: 168
Default RE: White Smoke out exhaust.

Well at my work their is a mechanic that comes in regularly and he did the compression test one night while I was there.
chrissilver3975 is offline  
Reply With Quote
Old 09-07-2006, 04:28 PM
  #8  
II 98 GT II
4th Gear Member
 
Join Date: Jul 2006
Location: Michigan
Posts: 1,125
Default RE: White Smoke out exhaust.

Do you still have the stock intake manifold with plastic coolant crossover?
II 98 GT II is offline  
Reply With Quote
Old 09-07-2006, 04:32 PM
  #9  
chrissilver3975
2nd Gear Member
Thread Starter
 
Join Date: Sep 2006
Location:
Posts: 168
Default RE: White Smoke out exhaust.

Yep. Everything is stock.
chrissilver3975 is offline  
Reply With Quote
Old 09-07-2006, 04:37 PM
  #10  
firstonraceday96
2nd Gear Member
 
Join Date: May 2006
Location:
Posts: 268
Default RE: White Smoke out exhaust.

take off your upper thermostat housing and see if shes cracked
firstonraceday96 is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: White Smoke out exhaust.


Advertising
Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.