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I really wish I knew what was wrong with her

508 views 2 replies 3 participants last post by  DSUZU 
#1 ·
I have a 1991 amigo xs , I love this truck but I really wish I knew why it doesn't start sometimes or it'll cut off while I'm driving. When I do start it ... it sounds rough but not always which is weird.
 
#2 ·
Welcome!

There are a number of reasons this could happen. Here are a few I would check at the top of my differential diagnosis:

a) battery and alternator ground strap. No corrosion, clean metal.

b) When it cuts out, do lights flash and weird things happen? If so, check the alternator voltage regulator. I had very, very similar problems with mine a while and it was a bad voltage regulator inside the alternator with a burned out diode.

Others can chime in but those are the first things I would check.
 
#3 ·
A bit better description of your problems will help with (hopeful) diagnosis.
Are you getting black smoke (either when it quits or on start up?)
How long since valve adjustment?
There are a ton of vacuum hoses under there, most times, on inspection, many of these small hoses have cracks in the ends, which cause vacuum leaks. However, vacuum leaks often cause HIGHER idle
How much tune up / repair are you able or comfortable with doing?
Dennis (chimed in :) )
 
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