Coolant capacity
Looking at the following manual for the 1994 Chevy P30 manual I'm not seeing anywhere 'Coolant capacity'... https://www.gmcmi.com/wp-content/uploads/2014/05/P30-Chassis-Manual.pdf I'm getting ...
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Replaced both the upper & lower hoses as well as the by-pass hose and T-stat (195F).
The lower hose was stamp dated 01/14/94 and the upper was stamp dated 01/28/94. Their appearance looked not bad given the age. Still very pliable with no signs of cracking in or outside of the hose anywhere.
Anyhow adds apiece of mind that those won't be an issue to pop up at a horrible time (road trip).
No one was selling the GM by-pass hose tried several FLAPS incl. Chevy dealer who said it was a patented hose. They could order it but it would take 2 days to arrive. Went to NAPA and sourced a heater hose with a similar curve then trimmed it up for a perfect fit.
As for the amount of coolant drained after removing the lower hose. I had marked in (1) gallon increments (measured/marked prior) It was just over 3 gallons. Likely 13 quarts. Meaning that roughly 10 quarts remained.
I replaced what I removed with the Prestone 70/30 mix coolant. The previous time I did the coolant (Sept. 2014) I had a shop do it (time constraint) and they likely used 50/50 mix.
Using a coolant concentration calculator I estimated the current concentration mix to be just over 50% coolant vs distilled water.
The lower hose was stamp dated 01/14/94 and the upper was stamp dated 01/28/94. Their appearance looked not bad given the age. Still very pliable with no signs of cracking in or outside of the hose anywhere.
Anyhow adds apiece of mind that those won't be an issue to pop up at a horrible time (road trip).
No one was selling the GM by-pass hose tried several FLAPS incl. Chevy dealer who said it was a patented hose. They could order it but it would take 2 days to arrive. Went to NAPA and sourced a heater hose with a similar curve then trimmed it up for a perfect fit.
As for the amount of coolant drained after removing the lower hose. I had marked in (1) gallon increments (measured/marked prior) It was just over 3 gallons. Likely 13 quarts. Meaning that roughly 10 quarts remained.
I replaced what I removed with the Prestone 70/30 mix coolant. The previous time I did the coolant (Sept. 2014) I had a shop do it (time constraint) and they likely used 50/50 mix.
Using a coolant concentration calculator I estimated the current concentration mix to be just over 50% coolant vs distilled water.
