1998 Ford Ranger Engine clatter

Tiny
98RANGERXLT
  • MEMBER
  • 1998 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 45,000 MILES
I have a ford ranger with the 4.0 I changed the oil in it today and now I have a clatter from driver side of engine I have been hearing it for a while but its louder with fresh oil iwould like to kow if it is anything major.
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Wednesday, February 13th, 2008 AT 8:19 PM

7 Replies

Tiny
FLEXY5
  • CERTIFIED MECHANIC
Is it a 4.0 SOHC or OHV. 98 should be a SOHC which means it may be the timing chain guides. They're plastic and break if they flop around too much. Since the chain tensioner is oil fed, for some fluke reason, it may have emptied and not put enough tension on the chain during start-up. Or the tensioner itself could be bad. Let me know if you need anything.
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Wednesday, February 13th, 2008 AT 10:10 PM
Tiny
98RANGERXLT
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It is OHV.
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Wednesday, February 13th, 2008 AT 10:19 PM
Tiny
FLEXY5
  • CERTIFIED MECHANIC
Is it coming from the top side or from the bottom?
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Thursday, February 14th, 2008 AT 5:32 PM
Tiny
98RANGERXLT
  • MEMBER
It sounds like the top side
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Thursday, February 14th, 2008 AT 8:24 PM
Tiny
FLEXY5
  • CERTIFIED MECHANIC
If I had to take a stab at it without hearing it, I would guess that it is valve chatter. My guess is the lifters are tight now because of the new oil. What weight oil did you use?
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Friday, February 15th, 2008 AT 9:40 PM
Tiny
98RANGERXLT
  • MEMBER
10-30 I always have used it.
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Saturday, February 16th, 2008 AT 12:02 AM
Tiny
FLEXY5
  • CERTIFIED MECHANIC
Even though 10w30 is what you may have always used, the higher viscosity oil may be taking it's toll on the engine. All the parts are designed within certain parameters and your engine was designed for 5w30. The thicker oil may have damaged the lifters to where they are not pumped up enough and you now have loose rockers.
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Saturday, February 16th, 2008 AT 5:29 PM

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