Question about 1988 Ford Ranger

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1988 ford ranger v6 4wh 5speed

Truck surges when put under load, it will cruse good 55mph when you hit a little rise in the road truck start surging, you can shift down the surging stops until you go up a hill, the surge comes back, shift down again ,get about 3000rpms the surge goes away, I can hear backfiring in intake when i let the load increase before i shift into a lower gear. I,ve changed dist. cap rotor, Ing. modulal a year ago. could it be valve being sucked into head? Thanks

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  • zzyzz69 Oct 23, 2008

    Is this a joke. Wheres a answer.

  • zzyzz69 Nov 02, 2008

    HI, The problem was split sparkplug boots at the sparkplug. Thanks for your suggestion.

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Plugs and wires, they may be ok for normal driving but you may need some heavy duty wires to pull anything

Posted on Feb 04, 2009

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It could be a valve. or it could be a worn camshaft and lifters.

Posted on Nov 02, 2008

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