Hey there, I own a 97 Monte carlo z34.....The car developes a knocking sound from the engine compartement after having been driven for 1/2 hour or more, and then "only" when I stop at a light or put it in park. I can even feel the knocking vibrations through the brake pedal. The car runs perfectly otherwise, it idles very well and has good power. Funny thing too, sometimes the knocking sound continues for 5 - 10 seconds even after I have shut off the engine. I have also noticed a faint smell of gasoline within the car and outside in front of engine when car is running, not sure if it has something to do with knocking. The car has recently had head gaskets and water pump changed due to overheating problems...........thanxs in advance for any help......
- posted
19 years ago