you might need a thermastat. my 98 was doing the same thing. its easy and cheap to replace.
134a
Only the Olds Intrigue with the 3.5 L
5 quarts
Need clarification on what you are asking.
Under the glove box.
Dealerships or junkyards.
Yes, it is called the OBD2 code list.
I found one online for $55 dollars
Just remove the console and you can get to it.
On the air intake filter box
Answer confusedhow to change a timing chain in 1999 Oldsmobile intrigue
No car has a "cadillac" converter