93 SE - KNOCK!
#1
93 SE - KNOCK!
Scanned the car and saw up to 4 degrees of knock under heavy accel. From a dead stop to full punch, it peaks at 4 and then very quickly drops off.
So far its been noted that there is...
Possible Vacuum Leak
Probable Exhaust Leak at downpipe
Original Arcing Spark Wires
Maybe Jesse can remember something I forgot that was noted.
So far its been noted that there is...
Possible Vacuum Leak
Probable Exhaust Leak at downpipe
Original Arcing Spark Wires
Maybe Jesse can remember something I forgot that was noted.
#6
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I am still learning about knock so bear with me. The interesting thing with Johns car is that the knock seems to be on the bottom end. When he stepped it down it would jump to 4 then 3, 2, 1. That seems a little different than mine where knock dosen't start until the mid to upper ranges. I think I have also heard that running a higher octane will not help the car unless it needs it. His car also was running at the usual 200 mark on the temp. Not sure if it helps to run at 180 for a decrease in KR. Keep in mind that John does believe that the wires are original and need to be replaced. This could be most of the problem.
#7
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What have you done for Tune up?
EI: Plugs, Wires, O2, PCV, things like that...
Also have you checked for exhaust leaks...
and... if you have done the plugs... pull then to make sure that gaped right and check them to see how thee looking...
EI: Plugs, Wires, O2, PCV, things like that...
Also have you checked for exhaust leaks...
and... if you have done the plugs... pull then to make sure that gaped right and check them to see how thee looking...
#8
Original Wires
New TR55s
New PCV
Original o2
New Air Filter
Original Cat
New Fuel Filter
and like i said...suspected exhaust leak at the downpipe/manifold. audible ticking.
New TR55s
New PCV
Original o2
New Air Filter
Original Cat
New Fuel Filter
and like i said...suspected exhaust leak at the downpipe/manifold. audible ticking.
#9
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Originally Posted by wjcollier07
and like i said...suspected exhaust leak at the downpipe/manifold. audible ticking.