ford ranger xl repeted back fireing

Joined: Apr 30, 2005 Posts: 4

a freand of mine is working on this 94 ford ranger. it has a 3.0l engine and is clankig in idle, when driving, when ever it running. he put a new distributer on and has undone the exaust but still can not find the problem.

can u help us?

thanks

External Since: Jan 10, 2004 Posts: 928

I see this is a repeat post so I'll try to help but we need a better
description of the problem...

The "clanking" at idle.... is this a mechanical noise like a failed engine
part? Or is it a spark knock like one might get from improperly assigned
plug wires? Is the backfire into the intake or the exhaust?

As with any running problem like this, it is important to have all the
basics right.... Spark plug and plug wire condition.... proper plug gap (in
the ball park, at least), is the firing order correct? Does it have
compression on all cylinders?

HTH