Need Second Opinon
#1
Member
Posts like a V-Tak
Thread Starter
Join Date: Jan 2012
Posts: 44
Likes: 0
Received 0 Likes
on
0 Posts
Need Second Opinon
Hey guys i will do an intro later tonight. I hafta go to work.
so im working on a 2003 chevy impala. 3.4 179xxx? miles. Just did the lower and upper intake gaskets. It runs smooth at idle, but under acceleration IN PARK, there is a tapping noise. seems to come from the front of the engine, but i cant tell which side. It does not do this when in gear under load. I checked the rocker arms at 2,4, and 6, because it was easiest. does this sound like a rocker arm?
thanks in advance.
Howlin
so im working on a 2003 chevy impala. 3.4 179xxx? miles. Just did the lower and upper intake gaskets. It runs smooth at idle, but under acceleration IN PARK, there is a tapping noise. seems to come from the front of the engine, but i cant tell which side. It does not do this when in gear under load. I checked the rocker arms at 2,4, and 6, because it was easiest. does this sound like a rocker arm?
thanks in advance.
Howlin
#7
Senior Member
True Car Nut
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Likes: 0
Received 0 Likes
on
0 Posts
I had this happen to me. Ended up being a cracked lifter roller, which was opened up and beat flat by the cam lobe, ruining the cam in the process.
Could also be an exhaust leak...
Could also be an exhaust leak...
#9
Member
Posts like a V-Tak
Thread Starter
Join Date: Jan 2012
Posts: 44
Likes: 0
Received 0 Likes
on
0 Posts
how about overtightened. after a bit of research ifound out my brother in law has left my torque wrenches cranked, then when he realizes it he turns it down and wont tell me. theres no damage, but im out a torque wrench. Ill get one tomorrow and if it fixes the problem, ill post up. thanks!
#10
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
Torque on the rocker bolts? If you over torque them it wont hurt it, unless you crank the heck out of them Those bolts are a torque to yield, so the stretch a bit.