I have a 1997 Blazer with about 105k miles. As of late, the engine seems to
die at random like someone is turning the key off. I will do it while going
down the highway, or just idling and completely at random. If i'm going
down the road and it does it, it will sometimes start right back up. At
times it won't do it for a few days and do it ten times in one day. The
engine seems to be running fine, no rough idling or anything. I have
noticed that it's a little harder to start sometimes though.
Intermittent symptom says bad electrical connection somewhere...like fuel
pump, fuel pump relay, ignition switch, coil etc. Could be bad ground
connection too. The absolute WORST kind of trouble to find and fix.
Check your battery cables. Particularly the positive cables (there are
2) where they attach to the battery. Invariably corrosion forms between
the two terminals where the bolt goes thaough them due to dissimilar
metal corrosion in the presence of battery acid. Let me/us know if this
I agree with the positive battery cable diagnosis. My 97 Yukon has the same
problem. Between the two cables it gets all kind of corrosion. Was driving
to work just last week when everything went dark! No nothing! Got out and
give the cables a yank and a twist and it all came back immediately. Glad it
didn't happen in the tunnel I went through a few miles back! This is an
ongoing maintenance problem for me that I try to stay on top of.I actually
keep one of those nice little ratcheting battery terminal wrenches and a
small jar of baking soda solution and a wire brush in the tool box under the
hood. Have had to replace the terminal bolt too. Been using the corrosion
preventer spray which helps but doesn't prevent it completely.
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said the pos connection on the battery. But here is a true "Horror Story". A
number of years ago, my pride and joy, my '73 pickup (which I still have)
started the same mysterious thing. Sometimes it would die going straight,
sometimes when turning right, sometimes when turning left, and sometimes
when sitting still or even backing up. It usually would start up again right
away, but sometimes it was dead for days.
I checked everything, I rewired the primary and secondary engine electrical
system, replace the cables. Everything electrical I could think of. Replaced
the fuel filters, replaced the fuel pump. I just about gave up. I even
pulled the gas line and replace it.
Nothing helped. After spending all summer trying to figure it out in
desperation, I pulled the gas tank. As I dropped it down I immediately
suspected that I had found the source of the problem. I turned it over and
shook it. About two dozen marbles rolled out.
Being an experienced parent, I checked to see which child had disappeared,
there by identifying the guilty party. My daughter had been P.O.ed at her
brothers so hid some of there marbles in the gas tank.
I learned my lesson. Everything has had a locking gas cap on it since then.
I hope that you find it quickly. I think it is probably like the others have
said the pos connection on the battery
Same thing happened in my 97 Tahoe
After several batteries being replaced and being stranded on many occassions...
I noticed that the Pos battery terminal was getting hot.... I figured that
could not be it, because I had meticulously cleaned... I did not know that the
terminal was really in two parts covered in red plastic with a steel washer
inbetween the two copper connectors... I cut the rubber off and saw that the
amount of carbon and crud that had built up between the two connectors was
huge... I then cleaned the connectors, chucked the steel washer and used a
stainless star washer between the connectors.
BTW one symptom I had was that sometimes when I tried to start in the morning,
the car would lightly click and act like the battery was totally dead... two or
three clicks later, it started like new... but I would see when that happened
that the clock in the radio would do a complete reset... talk about
frustrating.... but for now...
I also had that problem and posted the battery cable corrosion fix severeal
months ago. cleaned the pos. very well and even rinsed with baking soda to
clean final and no problem ever again.
2 yrs now.
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