Backfire
 

Over the last 2 days my car has been backfiring under part throttle under load. When in neutral there is a miss when revved high. My fuel pressure is at 38psi with vacuum line off, timing at 10 degrees. I have cats, long tubes. Had an annoying small leak that was like a ticking sound before. Could the backfiring be caused by this?

My plugs all looked good, tan colour. I don't know how to check plug wires, so that could be a problem, but they all look good.

Any suggestions?

Here's how to check for bad plug wires (arcing). Find a real dark place. Open you hood and let the engine idle. Look for a glow around your engine...that's arcing. Also, you could try spraying misted water around the engine where the plug wires are. Careful.

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Blueneonman - '95 5.0L Mustang GT Convertible | K&N Custom Cold Air Intake | FMS 9mm Wires | Hollow Cats | Flowmaster 2 Chambers | BBK Subframes | 6-pt Rollcage | King Cobra Clutch | FMS Adjustable Clutch Cable | Coolest Neon Lighting on a Mustang EVER!

Homepage: http://www16.brinkster.com/blueneonman/

Best time: 14.578 @96.20mph

Put in new plugs, wires, cap and rotor and it seems to help. The old wires never glowed or anything like that...

Could it be anything else? I don't want to have to change plugs every two months...

Broken or failing fuel injector.

Is the ticking sound an exhaust leak? I had an exhaust leak on my 92GT( flows with off-road h-pipe and 6# blower)and when I let off the gas or decelerated, every now and then it would have a huge backfire. I mean it sounded like a grenade went off under the car. I found the flange on the pipe to the hedder had a small gap and that caused the backfiring. I sealed it up and it went away.

Unit, how would I go about having them checked? They're only a couple months old, and are ford 24#ers.

As an updated, there is no major backfire any more and it seems to run a lot smoother. I still have that annoying exhaust leak, and it only sounded like a grenade once last night when I drove it hard.