Is the check engine light on? Have you read the OBD codes?
Backfires through the intake often means ignition problems. Unburnt fuel all but confirms it. I would remove all possible ignition components and dry them using 90 pct isopropyl alcohol and a warm oven or sunlight. Replace the cap, rotor, and wires. Dry the coil, etc. Pull the plugs, see if they don't show soot or gasoline.
Maybe use a hose to thoroughly wash down the engine first; fresh clean water goes a long ways to address submersion damage.
Quote:
Originally Posted by Cap. Morgan
So the truck starts and drives but having a lot of trouble with keeping power and the engine struggles. A popping sound also sometimes occurs from my air filter area, and pumping a lot of exhaust fumes out of the tail pipe. I believe that would that that be a problem with the mass air flow censor?
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