1996 chevy blazer. after running for awhile it will start to miss. replaced spark plugs and wires and changes fuel filter with no sucess. I had it put on a machine and it said it was the cam shaft senor. where is this located and how hard is it to fix myself?
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Hello, with lack of power from take off can be several issues. Let me help you on some to make sure that you don't go broke with trial and error. First of all, make sure you have a good clean fuel filter on it, and go ahead and spray some carburetor cleaner in carb and make sure that is clean. Inspect your plug wires, pull one plug to see if it is not black from miss firing. A LOT of times just those issues looked at and fixed,cleaned or replace will solve this. BUT if problem remains then it is possible it is cam shaft senor, that is located near your distributor AND that might have to be replaced\. Keep me informed. <mike>
Also if you ever want to deal with me for other professional help check out my personal page on fixya. http://beta.fixya.com/users/mc1bean
u need to ck for spark & fuel,,pull off one plug wire & put a spark plug in it,,lay the plug on the exhaust manifold so u can see the spark plug electrodes,,have someone turn over the motor look for a spark,,,or buy a spark tester,,,
If all the coils are giving spark now,then you moat likely have gas fouled plugs now,so change them out with new ones,all 8 of them.If you do not have spark on all plug wires,pull the timing belt cover,and align the cam shaft and the cam,to see if the belt has jumped.If It hasn`t,replace the crankshaft sensor.
If your engine timing is good, (meaning the cam is timed to the crank, and distributor) and you have spark and fuel, your engine will run. Try a compression test, and back up and re-test fuel and spark. Make sure the spark works with a HEI spark tester. (Coils can go bad and give a weak spark)
Does it have the anti-theft system, if so check for the two wires that go to the ignition switch and make sure they are not broken. If they are they will need to be fixed in order to get it too run again