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Re: 78 Suburban surging then dies on long grade
Adjusted the idle fuel/air mix and set the idle. This is a factory A/C truck without a solenoid so the idle gets really low in drive stopped at a light with the air on. Currently researching this. I don't want to increase curb idle to the point where I'm out of the idle circuit in Park with the A/C off. Currently it's at 850rpms in Park, air off. How far could I bump it? I'm still looking to see if a solenoid could be mounted....
Truck is running good. I could probably still fool around with the timing to get things a little more optimum. I did find broken engine-to-firewall grounds and will replace those. Haven't searched for engine-to-frame yet. The battery negative does go directly to the alternator bracket. I've read that without enough grounds that the hard fuel line can act as a ground and get hot, essentially vapor locking the fuel...
Last issue... now with everything tuned up, I have a slight hesitation going into WOT. Just a 1/4 to 1/2 second flat spot before it kicks. Any thoughts? I can live with it as is, but I've taken things this far, it would be nice to get everything tip top.
R
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