1993 Corolla

Jack wonders: Re: 1993 Corolla; 227,000 km

I would like to lift the back of the car a bit, and stiffen it when towing
my utility trailer. It tends to sag a bit even with only 100 lb on the
tongue.
I have put on aftermarket gas shocks already.

In 2003 I put on a transmission cooler (it's a 'medium' size but rated for a
4000 lb trailer if I recall). Since then the engine has run below medium
operating temperature almost all the time. Why is this? Is it a problem? Is
there a way to verify that I hooked the cooler up correctly (downstream from
the rad)?

By the way, I wasn't able to look up the trans. fluid change interval on the
Toyota website because my car is too old (1993) for their list. So, I would
like to find out what the interval is.

Your comments are invited.

Thanks,

- Jack

"Ralph" wrote in message

> Jack wonders: Re: 1993 Corolla; 227,000 km
>
> I would like to lift the back of the car a bit, and stiffen it when towing
> my utility trailer. It tends to sag a bit even with only 100 lb on the
> tongue.
> I have put on aftermarket gas shocks already.

Shock absorbers do not support the weight of the car; springs or struts
support the weight of the car.

If you want to adjust the ride height of the vehicle, then add an air bag
type suspension or change the springs.

>
> In 2003 I put on a transmission cooler (it's a 'medium' size but rated for
> a 4000 lb trailer if I recall). Since then the engine has run below
> medium operating temperature almost all the time. Why is this? Is it a
> problem? Is there a way to verify that I hooked the cooler up correctly
> (downstream from the rad)?

As long as the engine and emissions system is fully warmed up, having the
engine run a little below medium operating temperature is not a big problem.
There is a difference between warming up quickly and then holding below the
optimal temperature and taking a long time to warm up. If it takes a long
time to warm up, make sure the cooling fan is not running all the time and
that the thermostat is the correct one and not stuck.

>
> By the way, I wasn't able to look up the trans. fluid change interval on
> the Toyota website because my car is too old (1993) for their list. So, I
> would like to find out what the interval is.
>
> Your comments are invited.
>
> Thanks,
>
> - Jack

If you are towing a trailer, I would change the ATF every 24,000 miles.
--

Ray O
(correct punctuation to reply)