Rhia504
Full Member
- Joined
- Aug 2, 2015
- Messages
- 33
- Reaction score
- 0
- Points
- 6
- Location
- Laurinburg, NC
- Buick Ownership
- 1992 Roadmaster Limited
My roadmaster cranks up cuts off, then cranks and will run idle from 2-10 on tachometer. Then when cooland temp gets close to first line it levels out for about 5 minutes. Then it idles low again each time the tachometer drops the oil pressure also drops with it. Reading 0 oil pressure then 50 as the tachometer raises. I have changed the IAC, CTS, TPS, full tune up plugs, wires, oil, oil filter, and coolant. What could it be?
