Engine rattle

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
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Lexington, Ky
I've got a Horrible rattle at 1500 rpm. The whole truck shake's, it started doing this about 2 week's ago. I first noticed it when I driving, and just thought it was the roads... It does it in neutrel too at highway speed's though. Even sitting in my drive way in park the truck shakes very badly so it's deff the engine and not trans/ or suspension. Maybe injecter's? Dampner? Where should I start looking?
 

paint94979

Beer Nazi
Sep 18, 2006
11,715
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37
I've got a Horrible rattle at 1500 rpm. The whole truck shake's, it started doing this about 2 week's ago. I first noticed it when I driving, and just thought it was the roads... It does it in neutrel too at highway speed's though. Even sitting in my drive way in park the truck shakes very badly so it's deff the engine and not trans/ or suspension. Maybe injecter's? Dampner? Where should I start looking?

Try and get a log of it... could be injectors?
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
2
38
34
Lexington, Ky
I've had my mp8 turned totally down for along time, basically it's not there anymore because the lift pump I had didn't make any pressure to even use the mp8. So no, that should have nothing to do with... Good guess though

I can't log anything, is there any mechanical sign's or easy way's to test if the injecter's are going?
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
2
38
34
Lexington, Ky
Yeah I was thinking it could be a mount, I'll check those tomorrow and keep yall posted. I've never had starter grind in my truck, and I would think if the flexplate was out of wack I would get an ocassional grind here and there but I'm no expert.
 

LBZrcks

.........
Jun 2, 2007
5,297
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SoCal
Yeah I was thinking it could be a mount, I'll check those tomorrow and keep yall posted. I've never had starter grind in my truck, and I would think if the flexplate was out of wack I would get an ocassional grind here and there but I'm no expert.

Not necessarily, your flexplate could be cracked and start to wobble once it spins faster. I would start with looking at the driverside motor mount.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
7,535
2
38
34
Lexington, Ky
Not necessarily, your flexplate could be cracked and start to wobble once it spins faster. I would start with looking at the driverside motor mount.
Never thought about that, I do kinda abuse my truck LOL so maybe that's the problem. Hope not thought. But Yea I'll forsure take a look at the mount's tomorrow. Might even pull a few glow plug's, see what kinda fluid's are on them.