Question about 2003 Chevrolet Astro
Replace the complete heater control vacuum line over the motor with rubber vacuum tubing.
The heater vacuum line connects on the drivers side of the engine halfway back on the intake manifold.Run the new line to the heater vac connection at the passenger side at the right front in the engine compartment.
I change 2 a week....this should be where your problem is.
Posted on Sep 09, 2009
Testimonial: "That took care of it. I did change from that small vacuum line to the large rubber and ran it up to a wire loom overhead so as not to get as hot."
Check the vacuum accumulator under the hood. It feeds all the vacuum selections made by the climate control center. It's a large black ball near the firewall under the hood on the passenger side. Make sure it is getting and giving vacuum.
Posted on Sep 09, 2009
Testimonial: "You know your stuff! I had already replaced that line and have just discovered the one over the motor is broke in 2 places. Time to remove filterbox!"
Remove the air filter assembly etc. The hose goes accross the engine to the right side front of the eng. Kind of hard to get at
I replaced the hose $10.00 from the dealer. It was broken off at the manifold so I
had to pull off the bootlike elbow. Since it was out of sight and hard to get at, I bent a heavy wire and looped it around the boot to pull it off. To replace It, I use a 1/4" dowell rod to push the new boot on. The connect on the right side is easy.
Posted on Sep 16, 2011
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Posted on Jan 02, 2017
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