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Does this sound like a bad torque converter?

Hi All, I have an 88 Suburban with a TH400 and 5.7. The other day I noticed it felt like I was overreving on the highway and I couldn’t get much past 60mph. Shift ting is all good. I’m thinking it’s the torque converter. Wanted to check if anyone has ever experienced this before I remove the...
- Hotdogpimp
- Thread
- Dec 31, 2020
- Replies: 3
- Forum: Engine Performance + Maintenance
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1989 Suburban Won’t Shift to 3rd

Hi All. New to this site but have been building cars for a bit now. I picked up a 89 Suburban a few weeks ago. It was running and shifting fine until yesterday. Now won’t upshift to 3rd. This is a TH400. I changed the modulator. Still sticking. I went to change the governor and I can’t pull it...
- Hotdogpimp
- Thread
- Dec 29, 2020
- Replies: 2
- Forum: Transmissions