My heat in the van only trickles out. It has been like this for a couple of years so far just progressively has gotten worse. It started to blow out less and less. Now nothing comes out of it unless we are driving. If you have an solution for this problem I would appreciate finding out how to fix this since I has 3 small children and winter is coming soon.
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You should have a 4l60E in your astro van. Which is electrically controlled, so no vacuum modulator. However, to address the ventilation selector not working... look for a vacuum line exiting the firewall and going to the passenger rear of the intake manifold. You will likely find it broken or disconnected there.
NORMAL JUMP AS THE ENGINE RPM INCREASES THE OIL PRESSURE GOES UP VERY FAST. I HAVE THE VAN, MY DOES THE SAME THING, U CAN TRY REPLACING THE OIL PRESSURE SENDER, BUT ONLY USE THE GM ORIG PART, AFTERMARKET ONES MAKE THE FLUCUATION WORSE..
aslong as your tranny is still shifting properly then it should be fine, try getting a fluid flush and a new filter and new fluid and that should fix it up, thats what i did with my 96 astros and that cured them both
No,the oil ratings 10w30 and so refer to how the oil viscosity reacts to hot and cold.As far as running rough,when was the last time is was tuned up,cap and rotor if applicable,spark plugs and air filter?Is it carburated or EFI?
As for the fan your blower resistor is in need of replacement. To address the heat problem I'll need to know a couple of things 1. Does your vans temp gauge read in the normal range or is it running low(after you've driven it for at least 10 min 2. Is the out side temp really cold?