240 makes a pop sound

[Dr1ft_13]

i got this base model 95 240sxim purchasing it this weekend but i test drove the car and it makes a pop like sound in the rear when u change gears...i dont think its the muffler..but the guy said its some bushings in the differential or something..

[Alan's-240]

no thats a backfire. The o2 or CAT may be sour.

[Dr1ft_13]

is that bad? how much will it cost me to fix it? man hours? or can it be done by myself ...what damage can it do to the car enternally in a long run

[spec-u-later]

'm not sure what it is but I don't think it's a backfire. Backfires typically happen while your in gear and idling down. Could be in the diff or a loose suspension component.

[Dr1ft_13]

i remeberd it only does that pop sound while running or changing gears...when its idling it doesnt pop or if i rev it whiile the gear is in nuetral it doesnt pop... only after i stepp on the gas after i change the gear

[180fan]

Have you cleaned the reeds in the air induction unit? There's a hose that runs to the air filter and connects to a small box that connects to another metal box. Inside that metal box, you'll find a pair of reeds. Clean em and see how that goes.