My engine shuts off randomly
#1
My engine shuts off randomly
Hey guys my 94 4x4 truck with the 3vze engine keeps shutting off on me. Today while I was driving down the road to work and everything powered down on me. What could it be I recently replaced the negative terminal clamp on my battery and thought that fixed it but obviously not. Can someone please help with this.
#4
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When it shuts down, do you get all the lights on the dash? If not, it is most likely an electrical problem (as you undoubtedly figured by replacing the battery clamp). Caused by vibration.
When it shuts down, can you immediately restart it? If so, you have a slight intermittent problem that will be hard to catch. If not, when it shuts down, get out your multimeter and find where you have power and where you don't; start with the battery, move through the under-hood fuse box.
When it shuts down, can you immediately restart it? If so, you have a slight intermittent problem that will be hard to catch. If not, when it shuts down, get out your multimeter and find where you have power and where you don't; start with the battery, move through the under-hood fuse box.
#5
All of the above.
I also like to use this... to quickly show me voltage to system when problem occurs and it is impossible to probe anything (because you're driving) No need to worry about where to probe. HOWEVER, you still need a digital multi-meter for more thorough troubleshooting
Zero voltage when power down happens means electrical shut down. Yes most likely between battery and fuse block.
You sure you do not have a Chevy Cobalt ignition switch? - LOL!
I also like to use this... to quickly show me voltage to system when problem occurs and it is impossible to probe anything (because you're driving) No need to worry about where to probe. HOWEVER, you still need a digital multi-meter for more thorough troubleshooting
Amazon.com: LCD Cigarette Lighter Voltage Digital Panel Meter Volt Voltmeter Monitor for Auto Car Truck (1piece): Automotive
Zero voltage when power down happens means electrical shut down. Yes most likely between battery and fuse block.
You sure you do not have a Chevy Cobalt ignition switch? - LOL!
#7
Also when I'm driving and hit bumps sometimes my stereo shut off and turns back on. No idea if it's related. And this time it started right back up where as last time I changed the cable clamp because the old was worn out bad and it fired back up.
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#8
Sounds like loose connection somewhere. Make sure everything is tight, clean/corrosion free, bare metal contacts bare metal. Grey metal is not bare metal.
While lights may flicker (or incandescents may even stay on) when you lose contact momentarily, stereo's are sensitive. If voltage drops below a certain level, (i.e., 10volts when starter is cranking), stereo will reset.
While lights may flicker (or incandescents may even stay on) when you lose contact momentarily, stereo's are sensitive. If voltage drops below a certain level, (i.e., 10volts when starter is cranking), stereo will reset.
#11
Could be a short somewhere too, have the multimeter handy for the next time it happens to see if the battery voltage dips to 9V or below. Also check for heat around the power cables. If it is a short, it's an easy way to fry a battery/alternator or start an electrical fire- not good
I bet it is just a loose connection though. Happy hunting
I bet it is just a loose connection though. Happy hunting
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