Car Questions
RepairPal is your advocate for car care advice and guidance

Engine knock

(1990 Chevrolet Camaro)
in West Elizabeth, PA on August 04, 2009
I have a 355 chevy 4 bl. carb. it started knocking after a hard run is there a way to tell if it is a wrist pin or a rod bearing?
Displaying 1 answers & 0 comments
Popular Answer
on August 04, 2009
Sometimes you can tell if it's a rod by quick snapping the accelerator and listening to the sound and then take each plug wire one at a time and pull it off and snapping the accelerater again listening to the differences between cylinders. The affected cylinder will usually quieten down because there is no combustion happening in that cylinder. A wrist pin usually will not change when the above is done. Good luck
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
hello, i have a volkswagen polo 6n petrol 1.4 8v 60cv from 1997 with 168 000km. one problem is with the engi...
Check engine light has been acting up...i replaced the battery and the gas cap, looking for the easy fixes first. i h...
Didn't find what you were looking for?