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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: Curly86 on October 05, 2008, 09:15:25 am

Title: Missing
Post by: Curly86 on October 05, 2008, 09:15:25 am

I have an 86 Shorty with a 400 sb and a Q-jet. When I let it set for 3-4 days without starting it, it will miss for about a minute and then it will smooth out and run fine. It will also puff out a little white smoke every now and then. The motor was given to me and was it was supposed to have been rebuilt before I got it. Ya'll have any suggestion what to look at first?

Title: Re: Missing
Post by: VileZambonie on October 05, 2008, 10:29:27 am

Unplug the vacuum modulator on the trans and see if has trans fluid coming out.

Title: Re: Missing
Post by: 86 chevy silverado on October 05, 2008, 12:19:59 pm

Also pull the plugs, you should be able to see some tell tale signs of any issues such as too much fuel, oil fouled etc and which cylinder(s).

Title: Re: Missing
Post by: Curly86 on October 06, 2008, 12:57:23 pm

ok tks will check it out