Question about 2000 Chevrolet Blazer
My 2000 4wd 4.3 v6 blazer just started to back fire and run really rough. I thought maybe a coil so I got a new one and quickly tried unpluging the old one and plugin in the new one just laying o top of the engine. No change. 160k miles ??
Back fire can be a number of things. coil pack .spark plugs timing you you get and engine light on when it back fires.... ecu could would need to be read to see what the problem could be.
Posted on Feb 07, 2014
Sorry no idea without a plug in of as diagnostic reader ,i would suspect a cam sensor but??? how long is a piece of string??
Posted on Feb 07, 2014
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Posted on Jan 02, 2017
SOURCE: 1997 chevy truck running rough
Is this a 5.7? They are notorious for intake manifold gasket leaks. When mine did it, the diagnostics blamed it on an ignition misfire also! Replaced the gaskets and it runs smooth!
Posted on Apr 01, 2009
SOURCE: firing order for 97 chevy blazer
Firing order is 1-6-5-4-3-2. Distributor cap should be numbered. Number one cylinder is front on driver's side (3 and 5 follow on same side). Number 2 is front on passenger's side (followed by 4 and 6).
Posted on Apr 29, 2009
Firing order on 3.1L engine is 1-2-3-4-5-6. The ignition system is a waste-spark system, which uses 3 coil packs (1-4) (2-5) (3-6). Make sure that the paired cylinders' plug wires go to the same coil pack.
Posted on Oct 12, 2009
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