Question about 1999 Ford Explorer

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My 2001 Ford Explorer jumped time, I just put in a different used engine in last night, I drove it for about 3 hours last night it drove good. This morning I went to crank it up and it jumped time again. What happened and why did this happen again with a different engine?

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  • bambi_tate_8 May 10, 2009

    The new engine I put in last night jumped time.

    It starts right up but it has a loud knocking noise.

    This engine has 107,000 miles on it. It drove good last night.

    The old engine had 93,000 miles on it and it jumped time.

  • bambi_tate_8 May 10, 2009

    Can I put a 2003-2004 engine in my 2001 Ford Explorer?

  • bambi_tate_8 May 11, 2009

    My question is can I swap this engine from my 1999 explorer to a 2003 model? The both engines are 4.0 SOHC



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You said it jump time twice .describe what engine doing .is it back firing loping or hard to crank.

Posted on May 10, 2009

  • Jonah Oneal May 10, 2009

    knocking sound like main bearing noise.2003 -2004 is three or four year difference.taking a chance .you could get the same engine if the timing is the same .valve timing and injection timing.ignition wire hook up same and same tranny .but you going to have pcm going to have cranking problems.

  • Jonah Oneal May 11, 2009

    yep long as every thing the probably going to have it reprogram .i knew a few guys swap engines and had cranking problems.they had to reprogram it.when you get it hook up let me know how it goes you might luck up and it cranks.



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