Question about 1989 GMC Suburban
Just bought 89 Suburban. Alt. went bad, and this is when I discovered the alt was actually TWO alts combined. The engine is a 350 vortec, with 4brrl carb. so looks like the cobbing isn't limited to the alt. The alt is running on a "V" belt, and the fan/water pump off serpentine belt. What must be done to correct the problem with the cobbed alt? Is there anyway to determine what year the engine is? Obviously this is a crate engine. Pretty sure the Sub didn't come from factory with this engine. please don't respond with technical questions questions as you are dealing with a 62 yr old female whose mechanical knowledge is limited and what little I do know is based on google research.
Your michanic is right, mid 80's is when they went from carberator to throuttle body, for them to put the carb. on this engine they must have by pass the computer, i have done this myself before, it would take to long to explane the whole procedure. But if you want to know what the original motor was it could have been either a 305 cu. in. or a 350 cu. in. if you take the vin.# and go to general motors web site you might be able to find out, as i have done this on the classic cars that i own. There is also an id.tag on firewall by break booster with #'s you may be able to use to track down info.
Posted on Feb 09, 2009
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