AdderMk2

sounds like a bad T-stat to me

northy_polk

. . . and if it's a new t-stat already? where would you look next? thx.

AdderMk2

a new t-stat.

just because the one you put in is new, doesnt mean its good

Jfsram

Most of the time thermostats fail open or fail closed. The symptoms you describe does not seem like a bad thermostat.

AdderMk2

thermostats can become "stuck"

tmajikman

You may have air in the system or a clogged radiator.

northy_polk

just going off of what i heard from a mustang mechanic in springfield, va, the gauge is a cheaper place to start, so that's where i'll start with mine. summit racing has an electric tempgauge for about $140 that should work. i actually didn't put the stat in. i just bought the car last thursday and only drove it an hour from picking it up to my place. . . just going off of what the seller told me [new 165 degree stat].

Jfsram

Ya, "stuck" open or "stuck" closed. Must be my accent.