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When driving i hear a poping sound from my engine

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Poping sounds from top of engine while running

Without hearing the noise, popping back thru the intake often indicates incorrect spark timing or badly worn timing components. Double clack is piston pins, single tap may be valves out of adjustment, sticking, tappet noise, etc. Use a section of hose with one end in your ear to listen all over engine to find location of noise. CAUTION--beware of spinning fan blades.

Oct 08, 2015 | Cars & Trucks

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I have a 2002 doge caravan that i smell gas sometimes. its running rough and sounds its back firing. when you excelerate it doesnt want to and i hear a popping sound. already changed spark plugs and g

Remove the Engine Air Filter Housing and look under it for a vacuum line that goes back to the gas tank You will get a gas smell at times because this is an open line to the gas tank and evaporation container. It's common for the rubber elbow there to split and cause issues. Check ALL vacuum lines. The increase in air into the fuel system is causing a backfire "popping sound" and a loss of power.

Oct 12, 2014 | 2002 Dodge Caravan

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Poping sound from the front my 04 gmc sierra 4x4 5.3V8

If the sound is present when the wheel is turning under weight, the wheel or bearing hub could be causing the sound. The easiest way to check this is to get it on a hoist (supporting the front lower control arms), start the engine, put in gear while applying the brake, gently let the wheel start turning and look for the sound. If the sound is missing, you probably have a wheel (e.g. broken weld) or tire problem.

Oct 07, 2017 | GMC Sierra Cars & Trucks

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My 1994 cadi seville has heat (med flow) on the right side and cold on the drivers, any sugestions?

The engine coolant might be low as this could have air in the system and ait doesn't transfer heat like coolant does/ the heater core can be stopped up too and flushing it out is a good idea every year. there's no valve in the system so just blow it though with a garden hose and fill it with the right amount of coolant test drive and check the coolnt again. The 4.6 northstar is known for internal leaks and may be leaking. with the key on and the engine off inside the car and everything off except the heater on low move the temperture from hot to cold and listen for the air doors moving a clicking or poping sound is'nt what you want to hear so trace the sound and the air door motor that's clicking may need to be replaced.

Nov 26, 2010 | 1994 Cadillac DeVille

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Bmw E36 1995 ,engine noise problem.

ck for excessive play in the electric cooling fan blades - theses usually only come on when the car is hot or ac is used. You can also check this by locating the fan relay(s) and removing them when you hear the noise.

Oct 18, 2009 | 1999 BMW 323 Series

1 Answer

Van makes poping sound when I change gear.

Possible motor mount worn. Stop at a reputable garage, they should be able to confirm for you at a glance.

Mar 05, 2009 | 1990 Dodge Caravan

1 Answer

Loud poping sound under truck when driving as up and down shiftin

Could be the ujoints ,just a couple of bolts that hold in UJoint...Have you checkes your trans and motor mounts?

Jan 23, 2009 | 1996 Ford Ranger SuperCab

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