SPONSORED LINKS

2004 GMC Yukon Oil Pressure Loss, Coolant burn-off & En

Tiny
BEWHOF
  • MEMBER
  • 2004 GMC YUKON
  • V8
  • AWD
  • AUTOMATIC
  • 101,000 MILES
My Yukon has been losing some oil pressure about 800 miles after an oil change. Concurrently, I have had to start refilling the coolant reservoir tank frequently. There is no sign of a coolant leak. Engine also has developed a loud knock at startup, 30 seconds later it is gone. The knocking is worse as oil pressure decreases which occurs as time passes from oil change. When checking or adding oil I have also notice some white residue on the oil fill cap. Definately feel like coolant is getting into oil. What could this be?
SPONSORED LINKS
Thursday, January 24th, 2008 AT 7:21 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Get the oil presssure checked to rule out the oil pump -also for the white residue could mean blown headgasket/cracked head and block get it pressure tested.
Was this
answer
helpful?
Yes
No
Thursday, January 24th, 2008 AT 7:31 AM

Please login or register to post a reply.

Related Leak Content

Cooling System Pressure Test For Leaks
VIDEO
Cooling System Pressure Test For Leaks
Instructional repair video
Coolant Leak Symptoms
GUIDE
Coolant Leak Symptoms
When your car begins to leak coolant the first indicator is the engine will start run hot and possibly overheat. This will be noticed by the driver by observing the...
VIEW MORE

Sponsored links