okay I will check and clean grounds, any tips on that or just take them off with maybe a little wire brush action?
Which fuse are you referring to?
I have no idea how to do the vacuum check, but I'll research that. THANK YOU
These are the codes my 1994 Suburban 6.5 turbo 4x4 are giving me. I've done some research and thus far I haven't seen anyone having all these codes so each one has a separate list of potential problems. I know that sometimes a few codes together point to one problem so I figured I'd run it by...