What causes a coolant leak in a GMC Sierra?

This feature is not available right now. Please try again later. Coolant leaks on GM 5.0L & 5.7L Vortec Engines built between 1995 and 2002 can some times be attributed to the stock plastic intake manifold gaskets. This video shows the replacement of the Intake Manifold Gaskets on a 5.0L Vortec Engine in a 1997 GMC K1500 Sierra Pickup. Loading…

What causes coolant to leak on GM Vortec Spider?

One of the most common problems on the GM Vortec ‘Spider’ 4.3L, 5.0L, and 5.7L engines is coolant leaking from the intake manifold gaskets.

Why does my GM engine keep losing coolant?

Worse, allowing the problem to go on often results in a new engine. Often General Motors vehicles, with the 5.3L and 4.8L engines have come to us because they continue to lose coolant. Normally the owner has tried in vain to find the leak and sometimes, multiple auto repair shops have been unable to find a source.

What causes coolant to leak from the intake manifold?

What exacerbates the problem is the fact that the metal parts, the intake manifold gaskets are sandwiched between, expand and contract. This expansion and contraction is due to the engine starting and heating up and then cooling down when turned off.

What causes a coolant leak on a Vortec?

Please try again later. Coolant leaks on GM 5.0L & 5.7L Vortec Engines built between 1995 and 2002 can some times be attributed to the stock plastic intake manifold gaskets. This video shows the replacement of the Intake Manifold Gaskets on a 5.0L Vortec Engine in a 1997 GMC K1500 Sierra Pickup. Loading…

Where does coolant leak in a Chevy Tahoe?

Discussion in ‘ General Discussion ‘ started by wb22rules, Apr 9, 2011 . I have had to park it is started to leak so bad, as soon as you start it steady flow from what appears to be the headgasket area at the rear of the motor.

What causes a coolant leak in a GMC Sierra?