ticking sound during holeshot

[et_johnson61]

This last weekend I noticed what sounded like a ticking sound when taking off with my '90 celebrity with the 4.3 v6. It almost sounded like a car with a cracked exhaust manifold. I haven't had the time yet to look but was just wondering if anyone would have any ideas on what it could be before I go searching. Thanks for any help

 

[Laddies]

Re: ticking sound during holeshot

That sounds like preignition, if it only does it on acceleration, timing or bad fuel?

 

[Bondo]

Re: ticking sound during holeshot

Ayuh,.........<br /><br />And You'll want to Do Something about it,..... Soon.......<br /><br />They Don't make that noise very long,...... Before they make No Noise At All...............

 

[Gary H NC]

Re: ticking sound during holeshot

My 4.3 was doing that on hard accelerations.Wasn't long after that i was replacing head gaskets and exhaust gaskets..<br />Take Bondo's advice...

 

[bruceb58]

Re: ticking sound during holeshot

Ticking and cracked exhaust manifold don't sound like the same sound to me.<br /><br />Could be many things...pre-ignition, noisy lifter, faulty exhaust flappers...<br /><br />Have you had your head down in the engine compartment yet to have a closer listen? <br /><br />You should try to rule out pre-igniton first so that you don't go burning a hole in the top of a piston.<br /><br />I would check your timing first. Use an advance timing light and check it at all RPMs to see if the advance goes up somewhat linear.