Question about 1999 Chevrolet K1500
Best way to check for misfiring is to do a cylinder leakage and injector balance test.
To do leakage test go to Autozone and purchase an adapter for your spark plug threads so you can install this adapter and fill the cylinder w compressed air to conduct your test. Remove plugs and disable fuel pump and set each cylinder your about to test at TDC, then fill cylinder w air and listen for air leaks .
If air escapes threw intake manifod intake valve(s) are leaking . If air escapes threw exhaust exhaust , exhaust valves are leaking. If air is heard in crank or PCV valve then pistons are leaking.
Do an injector balance test . this one I recommend you have a technician do . Its a little dangerous.
Lastly spark tests. Although not completely conclusive ( in other words this test will tell you if you have spark or not it will not tell you how much spark) you can use a spark tester and test each cylinder for spark. A scopemeter will give you the amount of spark,. As you can see the best thing to do and its worth the money is to bring it to a repair shop. I'm hoping that its not engine mechanical that are giving you the grief (thats big money) hopefully you luck out and its plus and wires. I'll even take an injector. Good luck
Posted on May 04, 2010
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Posted on Jan 02, 2017
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