blowing black smoke and running really rough
#1
blowing black smoke and running really rough
I have an 86 pickup reg 2 wheel drive with a 22R and its a 4 cylinder. About a week ago it started running like crap and blowing black smoke out of its exhaust. Also a little bit of liquid was coming out. It doesn't run rough all the time it seems that when I get going for a little bit it will run normal and smooth but still blows a little bit of black out. I already replaced the spark plugs, plug wires, distributor cap and rotor. Cleaned the coil and igniter and when I checked the spark plugs they were sparking a yellowish color. I'm lost on what could be making it run this way and blow the black smoke out. Anyone have an idea?
#2
Blowing black smoke indicates your running too rich, which may mean a carburetor rebuild is in order, but what also got my attention is that you mentioned your spark being yellow. It should be a blue/white color could mean a weak coil/igniter.
#3
Yah I checked the ohms of the battery and its putting out 18-20 too. I don't know if maybe the altenator burnt up my coil and igniter or what. But you think my problem is the carburetor?
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#8
I read in my manual that to check it it has to be at a cool temp. So I'm gonna have to wait a sec. It says to pinch the line then release and shut off truck and if gas comes out of the valve(which I couldn't figure out where that was). Then repeat when the truck is hot and if gas comes out there's a problem. If I open it up what does it look like inside? Is there a gasket or anything I can damage?
#11
Well now it stays running. But it still was running rough. We took off the air filter and it ran fine. But ran extrely hot. I wonder if it could be the mixture control valve? Any ideas?
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GreatLakesGuy
The Classifieds GraveYard
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09-04-2015 09:27 AM