Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 84 Suburban Idle issue › 84 Suburban Idle issue April 8, 2012 at 11:00 am #440159 t3hp00kyParticipant Quoted From Beefy: 14.5v is a-plenty, if that’s what you’re getting at idle. Not idle in drive I have massive voltage loss… I’m looking for a good off-road carb. Since that’s what I plan on doing with the truck anyways.