that_Z69
Newbie
Hello everyone, I'm a new member to GMT400, have been searching around the sight but have yet to find the answer/help I'm looking for. I have a 1999 k1500 suburban 5.7 Vortec with spider injection. I recently had a stuck lifter....was ticking like a sumbitch at idle and it increased with revs. One thing led to another I pulled the heads, got it decked and valves reseated as well as upgraded the stock head gasket to a mls style while I'm there. Since my rebuild a few weeks ago I have been chasing little problems. First thing was my timing was off so I got the scanner and set my timing to 0°. She runs pretty good, drive around fine, doesn't throw codes but there's definitely something of, it idle low and sometimes wants to stall at a dead stop in gear. I've replaced IACV, and 02 sensors that seemed bad based off of fuel trim on bank 2, new ac Delco. I've chased all my vacuum lines, hard lines are good, soft rubber is all new. Cleaned/inspected egr sprayed water over all vacuum lines and fitting, didn't find ****. It is measuring air flow so MAF is good, order a MAP sensor for ***** and giggles. I was wondering if anyone could point me in the right direction for diagnosing this. This is my daily and as of right now it's just sitting in the street until I can get it situated. Any help is appreciated. I would prefer information that is diagnosis not blindly changing parts until it just goes away. Thank you.