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| 3800sc running hot when idling (Page 2/2) |
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pontiacfierokid1985
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JUL 02, 08:00 AM
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Lol not trying to do that so I have a fill port in the rear over by the stock Grand Prix thermostat housing since I didn’t feel like paying 100+ dollars for the modded fiero housing I just got a inline radiator cap and use that to fill/burp my coolant system. But I feel like since I have a 18 lbs cap I’m making to much pressure in the coolant system for some reason
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thesameguy
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JUL 02, 02:25 PM
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System pressure really changes how much heat the system can store (more pressure = higher temps) - it has no effect on temperature itself. If the system is running hot only at idle, the problem is most likely the fan... not enough fan, too high a temp, etc.
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Patrick
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JUL 02, 02:49 PM
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pontiacfierokid1985, I don't think you're understanding what I've tried to point out to you by quoting your own words, so let me ask directly...
Do you have a vented or non-vented cap installed on your radiator?[This message has been edited by Patrick (edited 07-02-2021).]
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mafv8
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JUL 02, 02:50 PM
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I use a SPAL fan on my car, its a 16"puller, sorry don't know the part number, but it fitted into the stock shroud with some simple brackets. and really pulls in some air. ------------------
84SE, aero body, 4 speed and an injected 355 V8
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pontiacfierokid1985
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JUL 03, 01:47 PM
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| quote | Originally posted by mafv8:
I use a SPAL fan on my car, its a 16"puller, sorry don't know the part number, but it fitted into the stock shroud with some simple brackets. and really pulls in some air.
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Yea I want to do that but course idk if I type In spal fan it will come up a picture would be awesome if you have one
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Larryinkc
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JUL 03, 02:51 PM
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mafv8
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JUL 03, 02:57 PM
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| quote | Originally posted by Larryinkc:
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Thats exactly what I did, looks just like that, except a used a SPAL fan, works great
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pontiacfierokid1985
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JUL 12, 11:17 PM
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| quote | Originally posted by Patrick:
pontiacfierokid1985, I don't think you're understanding what I've tried to point out to you by quoting your own words, so let me ask directly...
Do you have a vented or non-vented cap installed on your radiator?
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This I don’t know how do you tell if it’s vented or not I’m about to get one of those caps that have the release tab on top maybe that will help out
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pontiacfierokid1985
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JUL 12, 11:19 PM
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Thank you big time for this Larry ordering this ASAP to get rid of that crap stock fiero fan. This will definitely help out big time with cooling at idle. I sit in traffic for a good 10-15 minutes before gettin over the bridge to get to work here on the cape. And all I hear is the stock fan running constantly lol surprised it hasn’t burnt out yet. But this proform fan will help out big time
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Patrick
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JUL 12, 11:50 PM
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| quote | Originally posted by pontiacfierokid1985:
This I don’t know how do you tell if it’s vented or not I’m about to get one of those caps that have the release tab on top maybe that will help out
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It's all explained at the link I supplied earlier.
| quote | Originally posted by Patrick:
...you need a 15-16psi non-vented cap up front. Check the Cooling section (under Powertrain) at The Ogre's Fiero Cave.
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