'92 Ranger 3.0 Engine Problem
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'92 Ranger 3.0 Engine Problem
My Ranger had been running like a charm until I cranked it up this morning. I heard a kind of "grumbling/metallic" type noise under the hood and could not turn the ignition off for about two minutes. I haven't tried to crank it again. On the surface, everything looks fine. Before today everything sounded and looked great. It's been a well maintained truck for its 115,000 miles. Could I possible of slipped the timing belt? If so, does anyone know if these trucks have enough piston/valve clearance to avoid major damage? I thought that my first move would be to pull the valve covers. Thanks in advance for any help.
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The starter stopped cranking like it's supposed to, and I could turn the key to off. When I turned the key to off, the engine kept running. It took a minute or two before the engine actually shut down. The engine was runnning a lot rougher than usual before it shut down. It's an automatic, and I shifted between gears as I was turning the key to off prior to its shutting down. It was in neutral when it finally died. Thanks for your response.
Post Fiend
Joined: Dec 2001
Posts: 10,562
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From: South Jersey
What your descibing sounds like runon or dieseling, which I've never heard of in an EFI engine since the injectors stop firing when the ECU is shut off by the ignition switch. I guess it could do it if you had leaky injectors and had built up a lot of carbon in the cylinders which would act as a glowplug.
The other thing could be the ignition switch isn't "really" turning off the power.
Anyone have any ideas on this one????
The other thing could be the ignition switch isn't "really" turning off the power.
Anyone have any ideas on this one????
Posting Guru
Joined: Nov 2003
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From: Homer, Alaska
The metallic grumbling is what I would first be concerned about. Drain the oil in a clean pan and see what comes out. If it looks good, pull all the plugs (after putting in new oil and filter) and crank the engine without the plugs installed. Listen for any bad noises. Do a compression check before running the engine. If it sounds ok, I would look at the wiring and start troubleshooting the start system (key switch). Did the CEL come on?
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The CEL didn't come on and it really didn't seem to be dieseling. The engine actually seemed to be running rather than sputtering. The noise and roughness is what really got my attention. The only unusual strain recently put on the truck would be that I ran the A/C full blast yesterday (for the first time this year) for about two hours. If it is the chain I would think that it wouldn't start if I tried to crank it again, but I still don't get the "no turn off" ignition thing. Sounds like draining the oil/filter would be a good/safe first step. Thanks and I would appreciate any other thoughts.
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