Rapping sound in '96 dakota
#1
#3
RE: Rapping sound in '96 dakota
It's been getting progressively worse. sounds like a broken rod!! It's been running like crap too. I haven't done a tune up in a while. I just did the air filter, pcv, and oil. sounded better after that. But now it sound slike she's on her last leg. Should i take a look at the cap and rotor? When it's damp out the truck won't start until I floor it. Somedays when I start it, it smells like raw fuel out the exhaust. ??? I did the plugs 3 years ago with the platinum ones.
#4
RE: Rapping sound in '96 dakota
the 3.9's are known for the timming chain to get slack in it and slap around. mine does it and I have to give her gas to start it too. and at idle all you can hear is knocking and rattleing. that might be your problm... I dont really know.
but I would do a complete tune up and see if that helps. cap, rotor, plugs, wires. I did all that for mine under $100
but I would do a complete tune up and see if that helps. cap, rotor, plugs, wires. I did all that for mine under $100
#5
#6
RE: Rapping sound in '96 dakota
ORIGINAL: graemers
It's been getting progressively worse. sounds like a broken rod!! ...
It's been getting progressively worse. sounds like a broken rod!! ...
If it's valve train noise, you might have a dirty/sticking (vice collapsed) lifter. Tryadding an oil detergent, like CD2, or some Sea Foam in hopes of freeing it up.
Regards,
Greg
#7
RE: Rapping sound in '96 dakota
Sounds like a ticking noise. Continues on at all rpm's. I put some Lucas oil stabilizer in, that helped a bit, but it's back. I doubt it's a connecting rod, 'cause I'm sure it would've poked a hole in th eblock by now, no? She goes through oil pretty quick too. Can i check the pushrods and such by taking off the valve covers? Should I do a compression check?