temp sending unit issue ? or tstat
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temp sending unit issue ? or tstat
A few months ago I noticed my temp gauge was erratic in that it would climb up to the R in normal then go below the N -
then lately it would not even touch the N. I replaced the old Tstat with a NAPA T Stat. I did not specify a temp range 195-197 however - was that dumb of me ? ) and it seems as though it stays lower on the gauge than before !! I recently had the coolant flushed and filled also so it is new and I would hope there would be no blockage anywhere ...
so now I want to chage the temp sending unit.
any thoughts or suggestions ?
thanks,
Doug
then lately it would not even touch the N. I replaced the old Tstat with a NAPA T Stat. I did not specify a temp range 195-197 however - was that dumb of me ? ) and it seems as though it stays lower on the gauge than before !! I recently had the coolant flushed and filled also so it is new and I would hope there would be no blockage anywhere ...
so now I want to chage the temp sending unit.
any thoughts or suggestions ?
thanks,
Doug
Posting Guru
Joined: Apr 2005
Posts: 1,035
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From: duncan oklahoma
Originally Posted by DouginTahoe
A few months ago I noticed my temp gauge was erratic in that it would climb up to the R in normal then go below the N -
then lately it would not even touch the N. I replaced the old Tstat with a NAPA T Stat. I did not specify a temp range 195-197 however - was that dumb of me ? ) and it seems as though it stays lower on the gauge than before !! I recently had the coolant flushed and filled also so it is new and I would hope there would be no blockage anywhere ...
so now I want to chage the temp sending unit.
any thoughts or suggestions ?
thanks,
Doug
then lately it would not even touch the N. I replaced the old Tstat with a NAPA T Stat. I did not specify a temp range 195-197 however - was that dumb of me ? ) and it seems as though it stays lower on the gauge than before !! I recently had the coolant flushed and filled also so it is new and I would hope there would be no blockage anywhere ...
so now I want to chage the temp sending unit.
any thoughts or suggestions ?
thanks,
Doug
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
Since the gauge is barely moving, it might be a gauge problem. Try this very simple little test. Remove the single wire connector from the sending unit, shove a nail in it, ground it to the engine block & turn the key to run. If the gauge shows full hot the sending unit is probably bad.
BTW, ever since the Ford T-stat in my 87 Ranger stuck shut on me at 5K miles Ive been using a 180 degree Toyota T-stat & the gauge runs right in the middle & no more problems with a stuck T-stat.
BTW, ever since the Ford T-stat in my 87 Ranger stuck shut on me at 5K miles Ive been using a 180 degree Toyota T-stat & the gauge runs right in the middle & no more problems with a stuck T-stat.
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Hey guys thanks for your input. So I went to the NAPA fella and he said it was a 192-195 degree range TStat. I got a sending unit too and I will try the ground test too. I checked the hoses and the radiator and both are hot I am getting heat and the guage moves only to the N and then will drop down as I a watching it. Wierd.
thanks again,
Doug
thanks again,
Doug
