94 Grand Cherokee High Idle Issues
Hi everyone. I have a 1994 Jeep Grand Cherokee Laredo with the 5.2L V8. Recently, I've been having idle issues. I started it up one morning and the idle was around 1500rpm and steady in drive. I popped it into neutral and it idled at 2,100rpm. I've tested all the vacuum lines which tested out to be fine (19psi) and I've changed the TPS, cleaned the throttle body with an ultra sonic and it still idles at 1500 in neutral and around 1000 in drive. It makes it difficult to drive because you need to give it more brakes to stop it. Anyone have any clue as to what the problem could be?