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Re: HELP!!! Intermittent spark 2002 suburban 5.3
How many miles are on this thing? Two things come to mind, if the injectors are dirty, injector cleaner is most likely going to do nothing, either new injectors or getting them ultrasonically cleaned are you're options. Sounds like you have spark issues though, I would try to find a scan tool that can show you live data in a graphing type way and see what the cam & crank sensors are doing. You could have a cam sensor going out, if so replace with one from the dealer, the parts store ones will give you more problems 9 times out of 10. The grounds on the back of the cylinder heads for each coil bank are good correct?
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71 c-10 Long Bed, under the knife for a No Limit Engineering Wide Ride Chassis Pack and coil over static drop.
07 Silverado Classic 2wd
95 Camaro 427SBC/TH350
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11-16-2022, 10:25 AM
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