Fast Idle in Cold weather - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Murphy IRE · 12-04-2009, 08:43 PM

One more thing to add to my list. The tach isn't hooked up (PO), so I can't tell you how fast, but it does vary. The first time was really fast and I had to switch it to an empty tank to shut off, so I keep that tank empty (I have 3). I pulled the carburetor top off and checked for junk in the bowls - NOTHING -perfectly clean. I put it back together and it was better. This week it happened again (not as fast) but all day. I put it in neutral and hard tap the peddle/throttle and it does come down, but it is still a little faster than in hot weather. Should I start looking for vaccuum leaks? Any thoughts or suggestions? Rebuilt 400 sb with an Edlebrock 600

Murphy

12-04-2009, 08:43 PM	#1
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Fast Idle in Cold weather One more thing to add to my list. The tach isn't hooked up (PO), so I can't tell you how fast, but it does vary. The first time was really fast and I had to switch it to an empty tank to shut off, so I keep that tank empty (I have 3). I pulled the carburetor top off and checked for junk in the bowls - NOTHING -perfectly clean. I put it back together and it was better. This week it happened again (not as fast) but all day. I put it in neutral and hard tap the peddle/throttle and it does come down, but it is still a little faster than in hot weather. Should I start looking for vaccuum leaks? Any thoughts or suggestions? Rebuilt 400 sb with an Edlebrock 600 Murphy



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.