hissing noise in engine bay
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hissing noise in engine bay
I have a 89 RX-7 GTUs and a weird hissing noise started on the left side of the engine below/behind the air pump. I noticed that it went when the exaust fell of the manifold but that could be because i couldnt hear it. Also i lost all power...
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It would explain the hissing noise and loss of power. (I believe zaidnew meant exhaust leak.)
How did the nuts back themselves off of the exhaust studs? Do you keep maintenance on your car?? If not, it's a good time to start. Be sure the gasket from the first pre-converter to the exhaust manifold is still useable, then bolt both sides tight.
How did the nuts back themselves off of the exhaust studs? Do you keep maintenance on your car?? If not, it's a good time to start. Be sure the gasket from the first pre-converter to the exhaust manifold is still useable, then bolt both sides tight.
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The power has been the same because i noticed a complete separation after the cat on the exhaust so i just took it off. Also i thought it was a vacuum so i changed the lines and there is still a hiss that i cant resolve. COuld it be gasket on the manifold?
And i replied later because i was busy with work girlfriend etc. lol So i bought another POS for the time being
And i replied later because i was busy with work girlfriend etc. lol So i bought another POS for the time being
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Oh, I didn't realize the separation was AFTER the cat. I thought it was a large separation immediately after the manifold... In which the O2 sensor would receive a bogus reading, causing the car to run rich. This would give the car a "sluggish" feeling.
IF all vacuum lines are good... Check anywhere that there is a gasket. You said it is behind/below the air pump. Perhaps the exhaust manifold is loose on the engine. Are the air pump hoses "good" ?
IF all vacuum lines are good... Check anywhere that there is a gasket. You said it is behind/below the air pump. Perhaps the exhaust manifold is loose on the engine. Are the air pump hoses "good" ?
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Are you sure you don't have a exhaust plugged .. sounds like the exhaust is building pressure Remember the old potato trick in the exhaust ? it gave every symptom you have .. Just a thought
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Check out the FSM -> 1989 Fuel and Emissions Control Systems (non-turbo)
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