Offroad Trailblazers and Envoys

Coolant Flush, should I replace lower rad hose while there?

Trailblazer and Envoy related, but not off-road related...

by clickscrazy » Wed Jul 12, 2017 6:14 pm

I should mention, I am replacing the thermostat and coolant sensor as preventative maint, so it looks like Alternator has to come off.

Hose is $30. At 150k, would you keep factory hose...or replace with in-stock autoparts store brand?
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by Diacom » Wed Jul 12, 2017 9:52 pm

Why bother doing some preventative maintenance and not others? Especially when it's all related and connected?
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by clickscrazy » Thu Jul 13, 2017 8:37 am

Yeah, you are right. It looks like that hose will be completely removed anyway. So might as well replace it especially since I have a $20 cred.

Any downside to reusing OEM clamps?
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by mason10198 » Fri Jul 14, 2017 1:38 am

Those clamps tighten up like a MF. Seriously, no reason to replace them. Just reuse them, and WATCH YOUR FINGERS.

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by clickscrazy » Fri Jul 14, 2017 7:54 am

I agree. The clamps were still good, and were holding tight.

However, I replaced them with standard clamps to simplify servicing. I would hate to have to mess with one of those clamps on the side of the road (especially the lower hose that goes into the Therm.)
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