Re: Temp Guage Fluctuation - 98 Explorer
I agree with Jim. My '96 OHV was notorious for needing a new thermostat
every couple of years. After using the OEMs for years, I finally replaced
it with a Stant "SuperStat". According to Stant, "...SuperStats are
manufactured with a patented v-notch, non-linear valve design which reduces
cycling, brings your car to the proper operating temperature more
quickly,improves engine efficiency and fuel economy and prolongs engine
life." I can attest that it does keep a more even temperature than the OEMs
ever did (temp gauge usually goes to it's normal range and doesn't move much
after that), but can't really confirm that it warms up any faster or not.
Have had this one in going on 4 years now, and it still seems to be working
fine, which is longer than any of my previous ones lasted.
"Jim Warman" <firstname.lastname@example.org> wrote in message
> One thing I did forget to mention was the thermostat... for some reason,
> 4.0 (especially the cam in block or OHV design) seems to be hard on
> thermostats. Relatively easy for most DIYers. A 10mm swivel socket helps
> ease the pain and, since the bolts are small, a little care must be taken
> avoid twisting them off.
> While a normally functioning thermostat will "seek" a midpoint, faulty
> thermostats can fluctuate giving the guage a fluctuation.
> "VJC" <email@example.com> wrote in message
> > Jim,
> > Thanks so much for the input. Checked radiator coolant level (open
> > system) and it is full. Coolant resivoir tank is low, right at fill
> > line so I do need to add more coolant. The weather here in East Coast
> > has been in 20's, no too cold (I lived in MN for 4 yrs so this nearly
> > spring weather). At this point the better part of valor may be to take
> > it in, I do not work on cars much,. I thought possibly the symptom I
> > described was a sensor issue but as you said when sensors fail they
> > usually fail not intermittent or cyclic.
> > Thanks again for the input.
> > VJC