Check your thermostat !
Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2195
Printed Date: 24 April 2025 at 11:18pm
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Topic: Check your thermostat !
Posted By: Patrick
Subject: Check your thermostat !
Date Posted: 23 November 2010 at 4:34pm
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I noticed when the outside temperature dropped the last few days that it was taking quite awhile for my GT to warm up. The idle speed also remained quite high. It never really did warm up properly and my gas mileage, as bad as it always is, was even worse than usual. So, I decided to pull the thermostat and have a look...
The thermostat looked fine so I put it back in. Any other suggestions what might be wrong?
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Replies:
Posted By: Romeo
Date Posted: 23 November 2010 at 7:00pm
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LOL! That sucks. ------------- Never shift into reverse without a back-up plan. |
Posted By: Capt Fiero
Date Posted: 23 November 2010 at 8:56pm
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Just replaced the one on Shirley's car today, along with the heater core. She blew the heater core on Trans Canada this morning, so once we got the car home, did a complete overhaul on the entire cooling system, including replacing a badly bent thermostat. Not as bad as yours, but plenty twisted. ------------- Capt Fiero 88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
Posted By: Patrick
Date Posted: 23 November 2010 at 9:15pm
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What, you mean it's not supposed to look like that??!!!
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Posted By: cam2510
Date Posted: 24 November 2010 at 3:42am
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I have been having the same issue since the temperature drop but I am not sure its relevant since my rides a hint trouble sum. Going down too the parts place too grab a 195. I thought it looked fine? |
Posted By: Romeo
Date Posted: 24 November 2010 at 7:38am
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How is they're bending like this? What's affecting them? ------------- Never shift into reverse without a back-up plan. |
Posted By: Patrick
Date Posted: 24 November 2010 at 10:51pm
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http://en.wikipedia.org/wiki/Uri_Geller - Uri Geller is making a comeback. The long "arms" are simply bending from water pressure pushing against them when the coolant is cold and the thermostat valve is closed. Cheap thermostats like the one pictured above can often bend. Better ones (like the http://www.stant.com/brochure.cfm?brochure=205&location_id=168 - Stant SuperStat® I replaced it with) won't. By the way, I worked out the mileage for my last tankful of gas before I replaced the bent thermostat... 13.5 mpg!
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Romeo wrote:
Posted By: Patrick
Date Posted: 25 November 2010 at 3:24pm
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For anyone who's interested, the part number for a Stant SuperStat® 195°F thermostat for a Fiero is 45819 The current price at Lordco is $13.99 (with our club discount). |
Posted By: kharmata
Date Posted: 26 November 2010 at 12:16pm
It must be your driving style.  ...but in order to
drive in the city in a manner suited to better fuel economy in a fiero, you end up holding up traffic which is comprised of mostly peppy and efficient vehicles that can jack rabbit start and accelerate much quicker - not too mention the much faster pace that wreaks havoc on fiero efficiency and don't forget all those people who care not for fuel consumption hence the faster pace. |
Posted By: Patrick
Date Posted: 26 November 2010 at 4:23pm
Ya, I this have terrible habit of driving the car while the engine's running.
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Posted By: Romeo
Date Posted: 26 November 2010 at 7:48pm
Ah, see, there's your problem. And you dare scold my fuel-efficient engine swap. Pfft. lol ------------- Never shift into reverse without a back-up plan. |