160 powerstat...
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Teching In
Joined: Jul 2002
Posts: 26
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From: Fairfield, CT
160 powerstat... i recently purchased a hypertech 160 degree powerstat for my 98Z. i had to drain the antifreeze out to change it and then i followed the directions perfectly, revving the engine a little liek it said to. i took it for a little drive and my temp shot all the way up to 255. the fans did not go on at all and they were supposed to above 160. does anyone know if this was a bad thermostat b.c when i put the stock one in, it worked fine again.
Re: 160 powerstat... Sounds like you didn't get it full and have some air pockets. Happened to a friend of mine. I doubt there is anything wrong with the T-stat. Don't worry, just add some more anti-freeze.
Check the refill procedure on www.installuniversity.com.
Did you change the fan settings with HPP3?
<small>[ July 29, 2002, 10:21 AM: Message edited by: Lane ]</small>
Check the refill procedure on www.installuniversity.com.
Did you change the fan settings with HPP3?
<small>[ July 29, 2002, 10:21 AM: Message edited by: Lane ]</small>
Re: 160 powerstat... When I drain my coolant, I've found that getting the water back into the block is a trick.
The engine and radiator are about the same height, but the hose that feeds the block is higher and just trickles the water into block from the radiator.
Therefore, after starting the engine, the hot water is in the block, but not against the thermostat because the block didn't fill. So the TS doesn't open, allowing water to run through and air to purge.
Take the upper hose off and fill the block up then fill the radiator. The heated water will now be against the thermostat, which will open and allow the air to be purged.
The engine and radiator are about the same height, but the hose that feeds the block is higher and just trickles the water into block from the radiator.
Therefore, after starting the engine, the hot water is in the block, but not against the thermostat because the block didn't fill. So the TS doesn't open, allowing water to run through and air to purge.
Take the upper hose off and fill the block up then fill the radiator. The heated water will now be against the thermostat, which will open and allow the air to be purged.
Re: 160 powerstat... A good way to purge the air out is to squeeze and let go the large hose that goes from the motor to the rad with the cap off while the engine is idling. Do this a few times and fill as needed.
Re: 160 powerstat... Ditto what Mitchntx said.
I take the upper cross-tube (?) off of the radiator and fill it till I spill it. I then reconnect it and fully fill the radiator.
Next, I start the car, and let it idle for 4 minutes (about how long it takes for the TS to open and begin drawing water). After which, I shut it down, top off the radiator, fill up the cooling water resivoir and I'm done.
<small>[ July 30, 2002, 02:45 PM: Message edited by: NoGo ]</small>
I take the upper cross-tube (?) off of the radiator and fill it till I spill it. I then reconnect it and fully fill the radiator.
Next, I start the car, and let it idle for 4 minutes (about how long it takes for the TS to open and begin drawing water). After which, I shut it down, top off the radiator, fill up the cooling water resivoir and I'm done.
<small>[ July 30, 2002, 02:45 PM: Message edited by: NoGo ]</small>
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Re: 160 powerstat... It bubbled up because your car was probubly already way to hot. Let it cool and do what Mitchntx says. I had this exact same problem in my 85 Corrvette. I filled the block through the top hose and partially filled the hose too. It is basically air locked and no antifreeze is touching the thermostat. Once you get the antifreeze to touch the thermostat it will open.
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