Knocking/Popping Sound.
#1
Knocking/Popping Sound.
It runs!!!!!! (My 91 NA that hasn't been running for several months)
but......
Now there's a knocking/popping sound that seems to be coming from the rear of the engine. Outside of the car it sounds a lot like highly pressurized gases popping out of something. I can also see and feel a puff of what looks and smells like exhaust gases come up from the back of the engine when I rev the engine up. Inside the car it sounds a little like a tiny knocking noise.
Can anybody speculate as to what they think the sound might be? I'm pretty sure that this the sound that my mechanic identified as "rod knock" so I guess it might sound like that if anyone has heard it. I thought it might be an exhaust gas return line with a leak in it. Would that make a popping noise?
Thanks as usual for all the input.
but......
Now there's a knocking/popping sound that seems to be coming from the rear of the engine. Outside of the car it sounds a lot like highly pressurized gases popping out of something. I can also see and feel a puff of what looks and smells like exhaust gases come up from the back of the engine when I rev the engine up. Inside the car it sounds a little like a tiny knocking noise.
Can anybody speculate as to what they think the sound might be? I'm pretty sure that this the sound that my mechanic identified as "rod knock" so I guess it might sound like that if anyone has heard it. I thought it might be an exhaust gas return line with a leak in it. Would that make a popping noise?
Thanks as usual for all the input.
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msilvia
3rd Generation Specific (1993-2002)
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04-14-16 12:58 PM