- Oct 6, 2007
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Originally posted by: mariok2006
On a related note, what is the ticking when the car is shut off? It ticks for a few mins depending on how hard it wad driven.
nvm, didn't read all of the above post.Originally posted by: mariok2006
On a related note, what is the ticking when the car is shut off? It ticks for a few mins depending on how hard it wad driven.
Originally posted by: BouZouki
Lexus/Toyotas all have a ticking noise from the injectors, 100% normal.
Could be the lifters too like others said, a ticker oil usually solves the problem(I think).
Originally posted by: Elganja
it's piston slap... it should go away once your motor warms up. nearly all 99-01/03-04 cobra's and mach 1's (99/01 cobra motor) have this issue. It is nothing to worry about is and is quite normal.
edit: my 99 cobra and 03 cobra both had it, you can read on svtperformance.com or modularfords.com for more information on the subject.
Originally posted by: Cheesehead
Originally posted by: Elganja
it's piston slap... it should go away once your motor warms up. nearly all 99-01/03-04 cobra's and mach 1's (99/01 cobra motor) have this issue. It is nothing to worry about is and is quite normal.
edit: my 99 cobra and 03 cobra both had it, you can read on svtperformance.com or modularfords.com for more information on the subject.
Isn't piston slap a factor of poor tolerances on pistons and cylinder walls causing gaps?
It might explain how Ford gets such a small amount of power out of a big V8.
Originally posted by: RGUN
Pistons of differing material from the block routinely experience 'piston slap' during warm up as a result of thermal expansion differing between the piston and cylinder material. This means that when cold the clearance has to be larger, and the slap will occur, but once up to operating temp it will be within spec.
Originally posted by: heymrdj
My 5.4L in my 2004 Expy has this lifter tick as well. Does it more with dyno oil than synthetic oil. Going back to synth next change and seeing if it gets rid of it like it was with the original synth it had in it when I bought it.
Originally posted by: Cheesehead
Isn't piston slap a factor of poor tolerances on pistons and cylinder walls causing gaps?
It might explain how Ford gets such a small amount of power out of a big V8.
Originally posted by: Cheesehead
Originally posted by: RGUN
Pistons of differing material from the block routinely experience 'piston slap' during warm up as a result of thermal expansion differing between the piston and cylinder material. This means that when cold the clearance has to be larger, and the slap will occur, but once up to operating temp it will be within spec.
I thought the engine block and pistons were both aluminum?
Originally posted by: thedarkwolf
The block maybe aluminum but the cylinders will be sleeved. Aluminum wears out too quickly with the rings rubbing on them. Think the old 70s chevy monza was the last aluminum engine that tried it without sleeves and they didn't last too long.
Originally posted by: Elganja
fyi... on my 03 cobra I made 635rwhp and 589rwtq... that was on a completely stock block. point being, power can be made...