Update of this issue. Different 1989 245.
100 degree ambient, 1/2 tank gas, car ran great, but after a while, it would barely go 20 mph. Stopped car, sat for 5 minutes, then car ran great again.
On principle, ( because car had largely been sitting for 10 years ), I removed in tank pump. Pump frozen, filter "gone", rusted sender pump assembly. Replaced pump, both filters. Car ran great, even at 75 mph from Dallas to Austin at 100 degree ambient.
I do not know why the car would run great with a bad pump, UNTIL IT GETS HOT. This is the same problem I had with the previous 1990 240.
If your 240 develops problems when it gets hot, check in tank pump first. And as
has been pointed out, noise does not confirm proper function.
PS I have no confidence in the in tank pumps available now. I have replaced more than one that looked like new, one after 3 weeks.
|