noise appeared buicklesabre2000
-Buick le sabre 2000
-less than month ago, had water pump replaced - acdelco oem
-there are no coolant leaks - all necessary repairs made
I accelerated quickly within a short distance to make a red light, but didn't make it and braked at the light. Then a grinding noise appeared under the hood with a slight knock. Pulled over and turned off the engine, waited a couple minutes. Then turned on and noticed all was fine under the hood- no noise; drove home without a problem.
Wondering if the noise may have been the water pump or if mechanic'* repair may have caused a timing chain problem - not using that tool to cover that area ?
just wanted to remind that this sound did go away after stopping waiting and restarting and the drive back was normal
Maybe the fuel pump going bad ? - made grinding sound ?
i'm having a little trouble knowing exactly if the fuel consumption is going down based on reading the fuel gauge and miles because the fuel gauge acts wobbly once it gets down to about 2/5th tank. How to fix this ?
about 200 miles at that level - city stop and go driving