Tried a new cap, and it dinna work. I left the cap off while I let it run for a while, and it seemed like bunch of bubbles would come up every few seconds. I let it run for a while. When revving the engine, it would draw way down. So I added more 50/50 until it was back up to the top. Then I capped it off. I'll try it again in the morning.
I've verified the fan works, pump is working. So either the tstat is a bad one, or temp sender/sensor is bad. There is a coolant temperature sensor and a coolant temperature sender. I can see the sensor, but I have no idea where the sender is at. Anyone else have a clue?
----- Original Message ----
From: Bernd D. Ratsch <bernd@dodgetrucks.org>
To: dakota-truck@dakota-truck.net
Sent: Thursday, August 28, 2008 11:10:13 AM
Subject: DML: RE: Temperature
Air bubble in the cooling system or a bad radiator cap.
- Bernd
-----Original Message-----
From: Phillip Batson [mailto:pbatson68@yahoo.com]
Sent: Thursday, August 28, 2008 9:42 AM
To: dakota-truck@dakota-truck.net
Subject: DML: Temperature
This is a weird one, and I'm not sure what is causing it. Here is the
scenario:
Start up until engine is at operating temp is about 3 minutes. After about 3
minutes, the temp climbs past the norm, and proceeds to the max reading on
the gauge. I'd say it takes about 15-30 seconds to get there.
At this point, if I floor it or rev the engine in neutral, or turn off the
engine and restart, the temp gauge goes up to the max reading for a second
or two, and then drops back to the norm reading in about 3-5 seconds. Then
it is rock solid and doesn't ever show any kind of overheat. I never hear
any boiling sounds or see steam coming from the engine. The coolant bottle
is full.
This leads me to believe something is getting "stuck". I already changed the
thermostat thinking it was sticking. But it hasn't fixed it. What else do I
need to look at?
Oh, and this isn't my truck, it is a '95 plymouth voyager. :) I was hoping
you mechanical wizards might be able to point me in a direction to try and
fix this.
Thanks guys!
This archive was generated by hypermail 2b29 : Fri Sep 05 2008 - 15:32:20 EDT