One bad rocker will make a tapping noise and not effect the performance of the motor. If it is a deep dull knock it could be a big end or main bearing problem. Place a stethoscope or a thin metal rod on the motor moving it about with the other end in your ear. This will locate the area of your problem. Amazing what you hear with a rod (Large screwdriver works too)
SOURCE: DOES '98 DODGE DAKOTA EQUIPPED WITH TIMING BELT OR
chain. In the future if you have engine questions, please state what engine you have.
SOURCE: 1998 dodge dakota magnum v6
It could just be your oil filter.
But most likely a weak pump, or a clogged pickup screen in the oil pan
SOURCE: Rocker arm failure
Did the timing belt break at one time? Aside from the obvious of it sounding like your son did what mine did and tried to race the vehicle beyond it's abilities if the timing belt broken at one time it may have damaged the valves. If the valve impacts the cyclinder it is possible that it can damage the rocker and cam. When you pull the head off this time have the head re-worked and valves replaced. This should solve the problem.
SOURCE: my 89 chevy is making a knocking sound i just
Did you check the knock sensor located on the passenger side of the block, behind the starter, The sensor can be bad sending a signal to the Computer causing the computer to readjust the spark advanced timing causing Knocking and pinging....... or it could be as simple as bad gas. If you changed the timing chain, the gears should both be set with the the timing marks at 12 oclock for the 89 chevy K1500 5.7 350 V8 TBI OHV 16V if you set the timing at 12 oclock on the cam and 6 oclock for the valve and Distr. the number 6 is firing as number 1 you can recheck by bringing the No. 1 piston back up to TDC and check to see if your Distr. is pointing to the No. 1 Plug Hope this helps
SOURCE: 2004 olds alero 3.4 has
all hydraulic lifters are suspect and the 3.4, in general, is one of the worse GM motors...
However, there are no open recalls or TSB's
359 views
Usually answered in minutes!
×