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1993 Sierra 5.7 K1500 auto rattle/vibration noise FIXED!

Hello everyone, I’m looking for a little help identifying the source of this strange noise my truck is making. Oddly enough I noticed it for the first time after breaking in my new oem style camshaft and lifters. Break-in went well and I noticed the noise when I was done setting the ignition...
- OleGreen93
- Thread
- Mar 8, 2020
- Replies: 10
- Forum: Engine Performance + Maintenance
Stock 1992 c1500 700r4 TCC lockup conditions? (Fixed)

I bought my 92 c1500 with 100k miles last month in early September. It has the 700r4 transmission and shifted perfectly while it was still warm last month. Now that outside temps are cooling down I've noticed that it takes around 10-15 minutes of driving for the TCC lockup to occur at speeds 45+...
- OleGreen93
- Thread
- Oct 29, 2019
- Replies: 6
- Forum: Transmissions
WinALDL or Tunerpro help

Hey everyone, new member here. Just want to say this forum has been very helpful in my efforts to get my truck running better. I'm currently trying to diagnose an issue with my 1993 Sierra SLE K1500 5.7 automatic where it idles very low in gear (~200 rpm according to tachometer) and seems to...
- OleGreen93
- Thread
- Aug 22, 2019
- Replies: 41
- Forum: Engine Performance + Maintenance