Explorer Engine Skip and Ping

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Apr 8, 2002 | 11:58 AM

emba129

Thread Starter

Freshman User

Joined: Apr 2002

Posts: 42

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Explorer Engine Skip and Ping

Hi everyone,

I have a 94 XLT with 70 K mi. with the following issues:

Pinging
- started about 5k ago
- tried higher octane
- cleaned M.A.F. (per recommendations of this site)
- intermittent
- still getting some ping

Engine Skip/Cutout
- also about 3K ago
- when cold, start to accelerate forward, hesitates, feels like it is missing. Step on it and it clears up.
- goes away when it warms up
- cruising on highway in O.D. occasionally bucks. Stomp on it and it clears up.

Facts:
- Changed plugs and wires about 15K ago, with Bendix Autolite wires and Champion Plugs
- Fuel filter - never changed.

Thoughts:
- new wires and plugs?, Motorcraft original equip
- replace fuel filter?
- ignition module about to go?
- Im not sure if these problems are related

Any ideas on what else to look for or am I on the right track?

Apr 8, 2002 | 12:57 PM

CobraXP

Logistics Pro

Joined: Jan 2001

Posts: 4,123

Likes: 2

From: Fort Smith

Explorer Engine Skip and Ping

My first thought would be the fuel filter. If it has been 70,000 and not changed, then that could very well be the problem, especially being a 94 model. I would also take the IAC motor off and clean it. It is a cylinder that has 2 bolts that hold it on the throttle body, and an electrical plug with 2 wires. Take it off and clean the carbon out with carb cleaner a some q-tips.

Let us know f that doesn't work...