Seven problems related to engine clicking and tapping noises have been reported for the 1999 Jeep Grand Cherokee. The most recently reported issues are listed below.
The contact owns a 1999 Jeep Grand Cherokee. While driving at approximately 35 mph, the vehicle jerked violently as it decelerated and emitted an abnormal popping sound. The contact mentioned that the engine seized and the vehicle failed to restart. In addition, the contact stated that fuel fumes emitted into the vehicle. The vehicle was not repaired. The failure mileage was unknown. The VIN was not available.
Crankshaft counter balance weights scraping against internal engine block due to main crankshaft thrust bearing wearing out at 115,000 miles due to bad oem part. All other engine parts are excellent! this wear causes an internal ticking sound that steadily gets louder as wear continues. Replacement of the thrust bearing requires engine removal, engine disassembly and is not practical. After $900 for diagnostic work, mechanic says put it back together and drive it until it stops, then replace the entire engine. . . . . . . . . . . . . Or replace it now. . . . . . . . The part will fail and be terminal to the engine.
Consumer complained about a transfer case problem. When driving at approximately 40 mph there was a loud clanking sound coming from the front undercarriage. Consumer took the vehicle back to the dealer, and was told the vehicle had dusty brake pads, but that was not the issue. Then, consumer was told that the constant velocity joints were leaking. Also, consumer was told that the driveshaft needed to be replaced. Consumer felt that the dealership did not know what the problem was, and perhaps was covering up the real problem. Recall campaign; component: fuel system, gasoline:fuel injection system:injectors. The consumer stated that the vehicle would not start. The consumer stated that the engine had an extended crank before starting. Fuel pump assembly and pump crank repair kit installed. The consumer stated that there is a shimmy when the brakes are applied. When sitting at a stop light having the vehicle in gear it vibrates. The left outer cv boot was leaking. The engine light came on. The consumer stated that the transmission slams into gear.
Vehicle would vibrate severely when applying brakes at 35-40 mph, and more severely at higher speeds. Vehicle has been to the dealer on eleven occasions, and the problem has reoccurring. The engine makes noise. There was a clunk noise from drive line to reverse. The vehicle would not hold in park. Consumer stated that both inner and outer tie rod failed and were replaced. While driving at 85 mph the vehicle makes a growling noise. Transmission makes clunking noise when putting in gear. The steering wheel vibrates while going over pumps due to front brake rotors failure, also the steering shock was replaced.
Car makes loud clunking noise when slowing, then rpm's fluctuate and car stalls. Dealer contacted numerous times since vehicle first purchased. Each time they said it was fixed.
The motor has a metallic type knocking or tapping noise that increases in rapidity as the rpm increases until it becomes a high pitched screaming type sound. The dealer refuses to accept this as a problem since other 1999 6 cylinder Jeeps do it also. However my 1996 Jeep with the same engine didnot make these noises.
Have experienced numerous quality problems including the 4 wheel drive grinding and jumping, window function problems, rear washerhose leak into rear compartment, rough transmission into reverse from park, oil gauge failure and engine clicking noise during acceleration. Dealer on many occasions says they are normal for the truck to experience and not to worry. I don't believe them.