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Re: Help my 5KTQ
Thanks for all the help!
> The radiator fan problem is either: the resistor pack (2nd stage gone kaput), the radiator temp
> fan switch mounted in the lower left end of the radiator, or the 2nd stage relay in the fuse box
> near the windshield under the hood. Sometimes the 2nd stage relay points will weld themselves
> together and kill the battery. The radiator temp switch is a three wire connection and if you unplug
> the connector at the temp switch and short together the "correct" terminals (with Key On) you
> should be able to isolate the problem. Check the wiring diagram before you begin. The resistor pack
> is bolted to the frame rail in front of the radiator under the plastic cover.
I checked the relays the other week and they were all ok. Are the
1st and 2nd stage isolated on the same relay, without the 3rd?
I recall a day many moons ago when the fan would also turn on
for a few minutes after you turned off the car. It hasn't done that
for ages. The manual I have for the car says that you can unplug the
radiator sender switch and short it to see if the fan is functional.
I will have to get on the grubbies and try.
Chad noted that it might be the motor? Is there a way to determine
if it is just the resistor pack or the motor?
> The Starting/Running problem you described was already described correctly by Robert and is
> caused by vapor lock/fuel perculation in the injector lines after the car is warmed up and is then
> shut off for 10-15 min. The winter oxygenated fuel makes the problem worse. I have been tempted to
> change the injector cooler fan temp switch (mounted on the rear part of the valve cover) to a lower
> turn on temp variety to get this fan to come on more often.
This would also account for the "fumbling" I feel after driving the
car on the interstate for over 30 minutes. It will accelerate just
fine, but at the point where it is just receiving a small amount of
gas (ie. cruising on highway) it burps. VERY ANNOYING!
Thanks for the help!
| - Mike White |
| '67 Deluxe Microbus |
| '57 Deluxe Microbus 23-Window |