Join Date: Nov 2002
Location: BC Canada
Feedback Score: 0 reviews
More info about your truck would be helpful.
If it is popping not chuffing through the intake there are a couple of things to check before you pull the heads.
Try to determine which bank the sound is coming from by loosening the injector lines one at a time. If the noise goes away when one is loosened that is the bank. Remove the valve cover on that side. You will be looking for a bent exhaust push rod, very worn or damaged exhaust rocker or anything else that would cause that exhaust valve to not open. You may need to crank the engine over to ensure the cam and lifter are moving properly. If there is an exhaust valve not opening it can 'backfire' through the intake making the popping sound you are describing.
For every action there is an equal and opposite malfunction
1988 F350 CC 4x4 SRW, 7.3 Banks non-wastegated turbo, C6 w/ HD torque converter, Tru-Cool 4590 trans cooler, Highjacker 'softride' 4" lift, pre/post luber, coolant filter, Racor fuel filter/separator, pyro and boost gauges, Progressive 16x8 wheels, 285-75x16 rubber, 3" downpipe into 4" straight pipe over the rear axle and into 5" SS tip. 1994 Alpenlite 33' 5th wheel trailer