Question about 2000 Ford Ranger SuperCab

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Motor lopes and is rough

Checked all vacuum lines. Ford service dept. says no compression on 5 & 6. Drained oil and found a small spring (slightly larger than the small spring in an ink pen. Where could this spring of come from?

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  • elleevator Dec 03, 2008

    Just to let people known I have since pulled all 6 plugs from the motor. When I did this I could find no sign of anyone ever removing any plug wires or plugs. My question to the Ford dealership is how do you do a compression check without removing the plugs? And if they did remove them why did they not tell me that # six was completely bridged(which will cause a dead cyclinder), two are full of oil, and all seem to be completely worn out. This is why I DO NOT normally go to dealerships or mechanics in general. Because I happen to be female most of them asume I know absolutly nothing. I have now been working on my own trucks and cars for the past 20 years! I don't know everything about some of the newer obd systems but I do understand the basic operations of a combustion motor. Thank you for your suggestion on the erg. I do believe there is a problem with it also. The one for this truck runs $45.00 at discount auto and must be ordered.

  • darrell Bryant Jan 07, 2012

    bradyw has you very well covered, as he said when checking compression do one plug at a time leave others in. If you have 5 and/or 6 low...pour a small amount of oil into empty plug hole and see if that brings it up...if it does...head job...! If you have good compression they are trying to get some $$$$$$$. Its hard to trust these dealerships and some mechanics! Good luck!

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Sounds as if you have had work done before. If the head covers were off before, then its agood likelyhood the spring could of come right out of someones pocket as they working on it. Things can slide down into the journel through the oil ports. You would be surprised to find just how many thing I have found from mechanics working on my engines of the past. Small washers and even small bolts can fall into the pan. This is why there is a pan in the first place to catch stuff. But if the engine has never been opened, then we are talking a whole other story. small smog values have small springs in them. One of these could of come apart and fall into oil passages. Some are large enough to pass small parts. If your engins is running rough its a good bet that one of the smog controllers came apart. Check egr value, its small enough to be suspected. It has a small spring inside of it. New ones are under 12.00 bucks. So I'd look there first.

Posted on Nov 30, 2008

  • bradyw882 Dec 04, 2008

    There is another issue concerning dead cylinders, if the spark plug was bridged, then I must assume there more than 120,000 miles on the engine. If regular maintenance has not been done - check the manuel for 40,000 mile maintenance. Spark plugs should be changed at least 60,000 miles. Five and six cylinders can be washed out with Berrymen's cleaner. Spray a small amount into cylinder, reset with new plugs, restart engine. It will run rough till it burns out the cleaner. Even a mixture of transmission oil to Berrymen's - 1 tb-ls transmission fluid - to 4 tb-ls. Berrymen's, mix in a sprayer and squirt some into both cylinders. It will smoke like crazy for a short time, but the detergent action in the transmission fluid is a great carbon cleaner. I have done this one on many older engines to clean to lifters in down flow carburetor motors. It quiets the motor and cleans at the same time. If you have injectors, Any quality injector fluid cleaner in a mixture of 8 gals to 20 gals of gas to one can of injector cleaner should start the process. Another process can remove carbon by atomizing water in a sprayer while engine is running to remove carbon. this can be done thru the air intake manifold.

    It does not take much to clean srayer pumps - do not use much as damage can occur, just a few lite sprays will do! The older smog systems used to use this process. Then check your

    compression with a good compression tester for about 40.00 bucks. Or rent one, make sure you have a strong battery on charger to do this process. Remove on spark plug at a time and see if you have a reading of 158 psi to 165 psi per cylinder - this will tell you that your good to go. If its lower then its either re-ring or major head and value work. If it has been burning oil then the guides are bad, these can renurelled. But now we are talking 1200.00 or so to do the shop and machine work. Good luck.

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