Question about 1994 Ford Ranger Supercab

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Vehicle smokes and valves rattle going up steep hill. On dipstick oil level is like it is over filled Engine will be rough after that. Have chabged modulater valve on transmission with no results. Somebody said to replace PCV valve?

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  • Mike Jul 21, 2010

    Well, check the PCV valve, but probably not there.. What color is the smoke? if blue, means oil, if white, means coolant. Are you consuming oil, (miles per quart?), or water? What does the oil overfill look like, normal oil or discolored, frothy, foamy? You need to determine if you are actually hearing valve rattle, or engine detonation. Valves would typically clatter even when let off of throttle. Detonation would stop immediately on throttle release. How long is engine rough? any smoke or other noises during idling, after this event? Mike@MikePlayer.com

  • minzo12000 Jul 21, 2010

    Smoke appears to be white then a blue tint.
    I am not consuming oil as amatter of fact I check the dip stick ,and it is as if three quarts of oil were added to it.I mean it is way above the fill line. It is Detonation and not valve according to your description.

    At top of steep hill I can cut the engine off and it will start right back up and run smooth I can drive it down the hill and drive all day. or maybe it will run rough and smooth out later. Sometimes
    in the morning a day after the steep hill I get a brief cloud of smoke on start up and that is it except it may run like it is missing
    or fuel filter is bad. I only have to go up the hill twice a week .

    This week I have walked up and down that steep road because I do not want to damage my only source of transport.Most of my friends my age could not walk it and I just barely can.

    Why would the oil be so high on my dipstick?

    I have replaced the modulater valve and this morning the PCV Valve

    Any suggestions? minzo12000@yahoo.com

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SOURCE: When I go up a steep hill, carbon built-up blows out bad from my exhaust

There are a number of things that can cause this condition. First, be sure the engine is properly tuned-up. Have the spark plug and plug wires been replaced? Distributor cap and rotor, fuel filter and oxygen sensor? Then scan PCM (computer) for fault codes. This will tell you if any engine control components have failed. Also check for vacuum leaks or bad vacuum hoses.

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SOURCE: 1990 ford 2.9l in a bronco II- it has no power and

Remove and plug the PCV valve hose with bolt to check and see if this is the issue, many times the crankcase is not venting properly and the PCV valve needs replacment it is inexpensive enough just replace the PCV valve located on one of the valve covers it has a hose going to it.

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SOURCE: I have 2003 Explorer with

Yes - It should have a plastic grommet type thingy to sit in. Just push in, no threads.
Try to find one in junk yard or order from dealer.. How much could they cost?
You could try an actual grommet.. but must be oil resistant.

Posted on Nov 13, 2010

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