HEI Problem or AC Problem? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

treefrog · 10-10-2002, 04:48 PM

I converted to HEI, timing was right it seemed. The same weekend, I changed to a POA valve update kit, keeping the R 12.
The AC is fine, The HEI seems fine. BUT, there is a hesitation on the highway approximately every 7 - 10 seconds, when I'm running with the ac on, that is not there with the ac off. I am slowly turning this truck from a really neat driver into an ulcer. What did I do this time? Any help would be appreciated. TF

10-10-2002, 04:48 PM	#1
treefrog Registered User Join Date: May 2002 Location: Knoxville, TN USA Posts: 189	HEI Problem or AC Problem? I converted to HEI, timing was right it seemed. The same weekend, I changed to a POA valve update kit, keeping the R 12. The AC is fine, The HEI seems fine. BUT, there is a hesitation on the highway approximately every 7 - 10 seconds, when I'm running with the ac on, that is not there with the ac off. I am slowly turning this truck from a really neat driver into an ulcer. What did I do this time? Any help would be appreciated. TF



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