knocking noise

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knocking noise - 12/26/2005 1:43:50 PM    ron36535   Posts: 30 Joined: 4/9/2005 Status: offline I carried my 1995 S10 Blazer to my repair man with a coolant leak, found that it was a freeze plug leaking, no problem taken care of with some stop leak. I pick it up the same afternoon, but now it has a valve sounding knock that I did not have before that time. He put some Lucas fuel additive in it, and said my oil is way over due for changing. (true) it is also running rich, anyway changed the oil and put a quart of Lucas oil treatment with it, engine is still knocking, running rich, sounds like a miss also. checked my fuel pressure, it is 58, book says that correct areas. Help not sure what else to do... Post #: 1

RE: knocking noise - 12/27/2005 9:16:36 PM    swartlkk Posts: 15276 Joined: 5/1/2005 From: Waterloo, NY Status: online Ok... This sound... Is it a tick, like tapping a screw driver point on a table, or is it a knock, like tapping the handle of a screw driver on a table? If it is a tick, then it mostlikely is a stuck hydraulic lifter. If it is a knock, mostlikely it is in the bottom end and will only get worse... _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to ron36535) Post #: 2

RE: knocking noise - 1/6/2006 5:21:33 PM    93LT   Posts: 111 Joined: 10/19/2005 Status: offline What ever became of this knock noise? _____________________________ Rod 1978 GMC Sierra Heavy Half 1993 Blazer LT 4Dr 4WD Vortec 1997 Olds Bravada AWD 2001 Silverado LT 2500HD CC 4WD 2001 Yukon SLT 4WD (in reply to swartlkk) Post #: 3

RE: knocking noise - 1/6/2006 5:43:18 PM    swartlkk Posts: 15276 Joined: 5/1/2005 From: Waterloo, NY Status: online Yes, I was wondering much the same... _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to 93LT) Post #: 4

RE: knocking noise - 1/6/2006 10:52:53 PM    ron36535   Posts: 30 Joined: 4/9/2005 Status: offline ok, time for a update, I found that I had a leaking fuel regulator, a pin hole in my fuel line, and all this extra gas was going into my oil. There was an eailer post about this same problem. I am still wating for my parts to come in, but I think the gas just thined out my oil and caused a knock, that before that time I never had. thanks for asking about it (in reply to ron36535) Post #: 5

RE: knocking noise - 6/5/2007 9:51:57 AM    vagnozzi   Posts: 114 Joined: 2/12/2007 Status: offline wow I'm glad I found this thread, I think its teh same problem I have with my fuel spider and fuel-pressure regulator....thanks :) _____________________________ Vehicle: '01 GMC Jimmy SLS 2dr 4x4, 4.3 MPFI Update, remote start, 20% tint all around, blackouts, 124k Stereo: Eclipse 5504 Eclipse 5062 6-CD Profile 80x4 Profile 480x1 MTX Thunder 4500 (in reply to ron36535) Post #: 6

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