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Re: Re: 1991 toyota corolla running cool and pinging when warm

"ronroland" <[email protected]> wrote in message
news:[email protected]
> sorry forgot to mention that yes it was a dealer thermostat i learned
> my lesson long ago using aftermarket thermostats.Its 190degree
> thermostat the one i took out was stuck open a bit so it made sence to
> run cool maybe i,ll take it back and try another and timing sounds
> about right for the ping i doubt this little car got any carbon in it
> as i run it hard on the highway daily.thanks for your help
>


A 190 degree thermostat sounds about right. You can confirm a thermostat's
opening temperature by putting it in a pot of water with a thermometer on a
stove. Turn on the heat and confirm that the thermostat opens at the
correct temperature.

Make sure that the spring is oriented towards the block.


--

Ray O
(correct punctuation to reply)
> "Ray O" wrote:
> > "ronroland" <[email protected]> wrote in message
> > news:[email protected]
> > > hi i got a 91 corolla with 2 problems.The first is it takes

> > forever to
> > > get any heat the guage will usually go up quater way after

> > 45 min to
> > > an hour of driving.I replaced the thermostat.Actually the

> > entire
> > > cooling system is less than a year old new rad,head gasket

> > etc.The
> > > other problem is when it does eventually warm up it pings

> > bad.Im
> > > guessing this is timing but the car is great on fuel and

> > lots of
> > > power.I hope i explained this right any help greatly

> > appreciated
> > >

> >
> > When an engine takes a long time to warm up, the problem is
> > usually
> > thermostat-related. Either the thermostat is stuck open,
> > installed
> > incorrectly, or is the incorrect opening temperature. The
> > chances that the
> > problem is related to the thermostat go up if the thermostat
> > is not the
> > Toyota brand. [Ask Hachiroku about aftermarket thermostats
> > ;-) ]
> >
> > Pinging can be caused by incorrect ignition timing, EGR, bad
> > fuel, & carbon
> > deposits. I'd start by checking the ignition timing.
> > --
> >
> > Ray O
> > (correct punctuation to reply)

>
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