Question about 2003 Pontiac Montana
Is it hard to replace thermostat in 2003 pontiac montana
Yes but with the right shaped wrenches and tiny hands it can be done without removing the exhaust crossover pipe
Posted on Oct 16, 2008
I removed the air filter box and hose. I remove the hose to radiator. Lift up the small tubing above exhaust shield and slide a 1/4 inch drive socket ext with 1/2inch socket to access the top bolt of thermostat housing. Remove completely. Use a 1/2 inch ratchet wrench and from front go under housing to access lower back bolt. The bolt only has to be loosened as the housing is notched out to slide onto that bolt. I recommend removing that bolt as well. The housing must be eased out it is tight. You can use a flat screwdriver to hold the thermostat in while you jimmy out the housing.
Posted on Jan 25, 2014
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Posted on Jan 02, 2017
The only hard part will be removing the exhaust crossover pipe. This piece must be removed in order to get to the thermostat housing. Other than that all you have to remove is the air cleaner box and pull the hose off of the housing. Getting to the bolts is a little tricky, but a hand do-it-yourselfer can usually find a way to get to them. I'd recommend finding a couple of long extensions once you get to that point
Posted on Aug 05, 2008
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