No, but it does make it easier.
by the lower intake manifold while you are doing this you should replace the intake manifold gasket anyway because it will leak sooner or later.
remove the 2 bolts that hold the thermostat housing to the intake manifold which the upper radiator hose attaches to the housing then just pull the thermostat out and replace.
ON 2002 it is on the top right side of the engine between the intake manifold and timing belt housing, will need to remove the intake manifold and radiator to replace. 4 hrs work
what is the cost to replace a 2001 v-8 manifold intake
The thermostat is on top of your intake manifold, on the front side. Locate the radiator hose that runs to your intake, take the hose off and the thermostat will be sitting on the manifold under the hose.
the thermostat is located in between the water mouth on top of the intake manifold and the manifold its self..
To replace the thermostat on a 1995 Ford F250, the non-working thermostat must be removed. The radiator hose must first be removed, then the non-working thermostat unbolted from the intake manifold. The area needs to be cleaned of any old seals and debris. The new seal needs to be placed in on the intake manifold. The new thermostat is then placed on top of the new seal and secured. The radiator hose is then reattached.
thermostat, or buildup of deposits in intake and thermostat housing
Yes, you must install a new intake manifold gasket.
my dad and me took off the manifold and air intake off to get to it. and it didn't take more than a hour
The thermostat on your 98 gmc is located in the intake manifold where the upper radiator hose connects to the intake.
In the thermostat housing at the front of the intake manifold.