Detonation
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Joined: Jul 2021
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Detonation
Ok so here's the deal, about 6 months ago I replaced my seized engine in my 1989 suburban 2500 4wd with a chevy 350. But ever since then it has been detonating at low RPMs, I feel like I have tried everything. I started by retarding
the engine Timing, did not work, so I bumped the fuel up, did not work, now recently I have replaced my EGR valve and reset the ECM and it still is detonating at low rpms.
Any other ideas?
the engine Timing, did not work, so I bumped the fuel up, did not work, now recently I have replaced my EGR valve and reset the ECM and it still is detonating at low rpms.
Any other ideas?
Last edited by ArcticCatIV; Jul 31, 2021 at 4:58 PM.
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Joined: Jul 2011
Posts: 5,920
Likes: 140
From: kevinkpk
Ok so here's the deal, about 6 months ago I replaced my seized engine in my 1989 suburban 2500 4wd with a chevy 350. But ever since then it has been detonating at low RPMs, I feel like I have tried everything. I started by retarding
the engine Timing, did not work, so I bumped the fuel up, did not work, now recently I have replaced my EGR valve and reset the ECM and it still is detonating at low rpms.
Any other ideas?
the engine Timing, did not work, so I bumped the fuel up, did not work, now recently I have replaced my EGR valve and reset the ECM and it still is detonating at low rpms.
Any other ideas?
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