'05 4.0 ranger problems
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'05 4.0 ranger problems
2005 4.0, 2wd stick with 212,000 miles. Cruise set at 75 on interstate and the engine light came on followed by a loss in power, slight rattling of valves and a bad miss. Timing chain? Ideas and suggestions appreciated. Thanks for any help.
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ouch
Thanks, i'll check the codes asap. Had a '94 with same set up and got 400,000 out of it with no over haul or oil usage, just couldn't keep a tranny in it. I had my hopes too high for this one apparently. What's the cost of a new motor or rebuild +/-?
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First, the crank is connected to a blank in the block where the old cam used to live.
In the front of the motor, the cam for the driver side is driven off this.
In the back of the motor, the cam for the passenge side is driven.
If it had a belt on the front, it would be an improvement. A single chain would be good too...
The tensioners for these cams have a history of making noise and going bad. Mostly noise and they'll still run, but as with any cam drive like this, a failure of one or more components would not be a surprise.
The Pacifier
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From: Cloverdale, BC
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Well, not to backpedal on my condemnation of the cam drive set up in the 4.0 OHC, BUT:
--we do not yet know what the failure is in the OP's vehicle
--212,000 miles isn't bad & is beyond the life of many a cam-in-block drive (small block Ford, for example...)
--Ford did fiddle with the tensioner system and beyond noise, I've been told they are ok, and that even the ones in my '98--again, beyond noise which I do not have much of yet at 90,000, they are ok. They ( or at least the front one) was fiddled with under a tsb.
--the cam drive is this way to keep your worries off the 5 speed automatic at least some of the time....
I was looking at Rangers, but the V6/5 speed mt combo seems to not exist in any dealer inventory.
--we do not yet know what the failure is in the OP's vehicle
--212,000 miles isn't bad & is beyond the life of many a cam-in-block drive (small block Ford, for example...)
--Ford did fiddle with the tensioner system and beyond noise, I've been told they are ok, and that even the ones in my '98--again, beyond noise which I do not have much of yet at 90,000, they are ok. They ( or at least the front one) was fiddled with under a tsb.
--the cam drive is this way to keep your worries off the 5 speed automatic at least some of the time....
I was looking at Rangers, but the V6/5 speed mt combo seems to not exist in any dealer inventory.
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Thanks for all info. The motor will be examined at end of this week and i'll keep you posted on the results. Judging by sound of valves and vibration of motor it's def. the timing chain. I'm told that jumping more than one tooth can cause valve damage in one or both heads. Worst case i'll need a engine, anyone rebuilt this motor or purchased a refurb?
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No offense but if this is FMC's idea of an "upgrade" it will be my last ranger.... I came to that conclusion 300 miles from home on the side of an interstate.
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My goodness 212000 miles and it broke. I'm sorry it doesn't owe you a thing. We didn't use to get 60,000 out of a timing chain or timing belt. At that kinda mileage Changing the chains and tensioners would be called PM.
What I have seen when they get that kinda of mileage on them most of the failures are catastrophic.
What I have seen when they get that kinda of mileage on them most of the failures are catastrophic.
