| ||||
|
[ Post New Message | Reply | Edit Profile | Register | Search | Current Connections | Message Board FAQ | Lost Password? ]
thermastat question Posted By: formulateez On: 04-24-2008 @ 01:23:41 Reply | Edit my tach is shooting all over the place reading 100 to 260 back and forth not staying at a consitant temp. is that an indecation to thermosta stuck open or stuck closed??? or just plain shot -- 1987 formula 350 5.7, 3inch exhaust, hooker headers, bbk throttle body, cold air intake Posted By: Pocket On: 04-24-2008 @ 01:30:59 Reply | Top | Edit Bad sensor? Bad gauge? Bad stat? Could you be a little more specific on the issue? -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: formulateez On: 04-24-2008 @ 01:53:16 Reply | Top | Edit where would sensor be located, and the only thing i thought it could be is thermostat. gauge was working fine yesterday. -- 1987 formula 350 5.7, 3inch exhaust, hooker headers, bbk throttle body, cold air intake Posted By: Pocket On: 04-24-2008 @ 03:32:29 Reply | Top | Edit Dead front of the intake Has a 2 wire connector on it, yellow and black wires -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: LeadFootedRacer 
On:
04-24-2008 @ 11:08:13 Reply | Top | Edit
really? mines on the drivers head between the first 2 cyl, and has a 1 wire connector. -- 
--Fbody.Com Site Donator-- Posted By: Calaban007
On:
04-24-2008 @ 11:30:22 Reply | Top | Edit
It may have two sending units. One for the gauge and one for the ECM. -- 
1995 Camaro Z28 & 1989 IROC-Z Stock restoration in progress, well almost stock 
http://www.myspace.com/163296073 Posted By: LeadFootedRacer
On:
04-24-2008 @ 11:41:51 Reply | Top | Edit
well that makes sense. but when i did my headers, i forgot to connect that 1 wire sensor on the head, and my guage didnt work. once i reconnected it, boom, guage worked --
--Fbody.Com Site Donator-- Posted By: Calaban007
On:
04-24-2008 @ 12:47:49 Reply | Top | Edit
Yeh, that's the way it was on my Z28. The gauge stopped working, then would work intermittently, or bounce around. Found out the wire, which comes out the driver's side of the block, was frayed and exposed. I spliced and solder it, then wrapped it in tape. Good as new, but not before I bought a new sending unit.  --
1995 Camaro Z28 & 1989 IROC-Z Stock restoration in progress, well almost stock
http://www.myspace.com/163296073 Posted By: Pocket On: 04-24-2008 @ 13:13:30 Reply | Top | Edit Actually there are 3 coolant sensors One on each head I forget what the drivers head controls Pass head is fan Front intake is coolant temp -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: klez On: 04-24-2008 @ 21:28:49 Reply | Top | Edit formulateez, it could be that your coolant level is low, i had this problem once. its because the sensor reads the coolants, then it reads air , then coolant again, then air and so on.its because theres not enough coolant to to fill up the cycle. i know i know ...only an idiot doesnt keep the fluid levels in check, but my stupid plastic heater core lines busted... i still cant believe they made those lines plastic, stupid GM engineers.
|
||||
| If it looks (c) it probably is - All work done by James Hogan | ||||
