“Pop, pop, pop…” sound from intake manifold (1 Viewer)

[Han Solo]

Strange, “Pop, pop, pop…” sound from intake manifold

When I advance the throttle from idle I hear a, “pop, pop, pop…” sound coming from the intake manifold, I think. The noise has become progressively louder during the past week. The noise is only present during accelerations, once a desired RPM is selected the sound stops and the truck seems to continue running fine. No notice in power loss.

Any theories or solutions for a fix would be greatly appreciated.

 

[ShawnTRD]

Take it someone to get it looked at... Could be a million things.

 

[Han Solo]

Thanks

 

[lagwagon]

could be lots of things but check the big hose between the vaf or maf and the throttle body. these hoses harden and split and open up more during acceleration

 

[Han Solo]

Problem solved!!! It turned out to be a loose spark plug. The exhaust gas was shooting out around the plug causing the, "Pop, pop, pop..."

Thanks everyone for all the great support!

 

[vankho]

Thank you to IH8MUD and this 10-year old thread! I was tearing my hair out troubleshoot this thing on my FJ62 3-FE with similar symptoms. Intermittent popping sounds when accelerating in first gear, after a cold start, in the 1000-2000 RPM range - issue subsides and disappears as car warms up or running in higher gears.

Figured I try to tighten spark plugs before I jump to more expensive or time consuming solutions. So far on my first test drive, it seemed to have solved it!

 

[tacocat]

Thank you to IH8MUD and this 10-year old thread! I was tearing my hair out troubleshoot this thing on my FJ62 3-FE with similar symptoms. Intermittent popping sounds when accelerating in first gear, after a cold start, in the 1000-2000 RPM range - issue subsides and disappears as car warms up or running in higher gears.

Figured I try to tighten spark plugs before I jump to more expensive or time consuming solutions. So far on my first test drive, it seemed to have solved it!

Cool, but I bet in OP’s case, the Hyperdrive was somehow involved.