1994 Jeep Grand Cherokee Engine cooling Problems

“Driving 25 MPH and turned knob to put on heat and thick, brown smoke coming out of vents immediately filled car. I stopped and looked under hood. I could see a pipe where smoke seemed to be originating but don't know what it is called. When smoke cleared and I didn't see anything leaking under the car, I started to drive as called service station a few blocks away. They said to bring it over but upon driving about 50 more feet smoke got worse; became thicker and black. …”

“I purchased this Jeep because I was told it needed a transmission, these are the symptoms, when you first start the truck and you put it in reverse, the engine kills. You start the truck up again and put it in reverse, it vibrates and the engine wants to die but the computer tries to increase the RPM to prevent it from dying, you then have to apply the brakes hard, when you put it in neutral, the rpms are at about 2000 and then they come down. …”

“Wow, it's very amazing to me that there are so many v6 grand Jeep cherokee's hat have cracked exhaust manifolds. We love our Jeep's, we are the owners of our second one. This is under the Jeep where the exhaust and emissions heats and and cools. The Jeep sounds like a hot, hot rod. (I'm not in that age bracket anymore). This manifold is so common now that your local pep boy's, david early tire etc. (small shops) are stocking them?they use to be a factor order item.”

“Jeep Grand Cherokee, early years 1992 - 2001 exhaust manifold cracks with regular occurance and allows carbon monoxide into passenger compartment. I own a 1992 and manifold cracked at 55k and 70k (each $1200 to fix), bought a 1994 same vehicle, manifold cracked at 40k miles. Many owners reporting same issue, dealers will replace if pressed but deny problem. I am getting sick (physically) from the vehicle with exhaust coming into cabin. I never know when it will happen. It could cause accident if I passed out.”

“My 1994 Jeep Grand Cherokee stalls out intermittently without notice, whether driving or stopped. It will start right back up but when it shuts off all power, steering, and braking power is lost and the vehicle must be put into neutral to restart then back into gear. Its very dangerous to lose control at 45+ MPH, let alone the danger at any speed.”