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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 10-13-2006
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Knocking

I have a 2000 ranger 4x4 5speed manual trans. There is a knocking sound coming from my engine and i can't seem to find the problem. My CEL isn't on. When i drive it seems to be find and the knocking goes away but when i am at the light or just idle comes back. I was thinking the plugs & wires might need to be changed. I bought this car from a ford dealership used about 7 months ago and i dont know if they changed the plugs out when the person whoever it was traded it in. I hae 61K on the truck and when i bought it had 54k.
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Old 10-13-2006
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First and foremost.....did you get a warranty with it? If so, march down there first thing in the morning and have them fix it. If not, good luck.
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Old 10-13-2006
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Yea i didn't get a warranty with it. I think i am going to go get some new plugs because it sounds like it might be miss firiing. But i dont know that much about engines so i think i am wrong.
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Old 10-13-2006
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Give the thread an hour or so. Someone who's prolly experienced the same thing or maybe even knows what the problem is, usually chimes in. Sorry I'm 4.0SOHC powered, never had that problem.
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Old 11-01-2006
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Is it a douple knock? example (knock-knock....knock-knock...) or a single (knock...knock... knock...)

single knock is the main bearings on the crankshaft, one knock per rotation, douple knock is the main bearings on the pistons, one knock at the top of the cylender, and one know at the bottom. or it could be both. if you have warrenty id bring it to them, its a big job.
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Old 11-01-2006
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to further elaborate on the above post, is the knock rpm-dependant, or is it a random knock pattern?
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Old 11-01-2006
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i am going to try and put a sound clip up tomarrow.
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Old 11-15-2006
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If its loud enough for a camera to pick it good enough to hear it cant be good.... I wouldnt think a miss fire would cause a knocking noise that loud...
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Old 11-15-2006
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Quote:
Originally Posted by l2en
Give the thread an hour or so. Someone who's prolly experienced the same thing or maybe even knows what the problem is, usually chimes in. Sorry I'm 4.0SOHC powered, never had that problem.
are you anything powered yet
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Old 11-15-2006
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Quote:
Originally Posted by rangercole
are you anything powered yet
lolo that was wrong........2 weeks ago he was powered now hes hydrolocked......i hope he never playes the lotto
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Old 11-15-2006
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Quote:
Originally Posted by DUB Offroad Edition
lolo that was wrong........2 weeks ago he was powered now hes hydrolocked......i hope he never playes the lotto
wasn't makin' fun, just wondering
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