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flyboysdak
Dodge Dakota
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4/23/2002
21:36:36
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 Subject: Low knocking sound
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Message:
Hey all i have a 2000 cc dak with 54 K on her. shes been makeing this low knocking sound in the engine kinda like a thumping. any ideas what that could be.. it sounds horrible.. thanks to all who help.
tim
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cbass
GenI
4/24/2002
11:09:22
|  RE: Low knocking sound
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Message:
kinda sounds like you need oil or a new engine.
what kind of sound a loud tomping one, if it is go to you dealer and ask them if it is serious ?!
they'l charge you a arm in the leg but it's wort it.
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FIJIGabe
Dodge Dakota
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4/24/2002
16:52:05
|  RE: Low knocking sound
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Message:
now that was bad advice...
what kind of knocking are you getting? is it low because its hard to hear, or is it hard because its low in pitch... that makes a HUGE difference.
let us know, and we'll try to help you out.
Gabe
http://frontpage.tripod.com/fijigabe0/
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flyboysdak
Dodge Dakota
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4/25/2002
00:17:04
| RE: Low knocking sound
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Message:
its not low as in hard to hear its low like a low thump.. but it speeds up when i acclerate. my last truch had to have the lifters chnaged and the knock would speed up but that was really loud and a toatll different sound.. and it only sometimes that it does that.. as for oil.. it gets oil changed every 3000 miles on the dot or before. and its never low... so thats not an option.. thanks for any advice
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ira
Dodge Dakota
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7/02/2002
04:46:00
| RE: Low knocking sound
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Message:
i am having the same problem with my 98 3.9 sport.
have you had any luck diagnosing it. i was told something about the rear main seal. but nothing conclusive. the problem does not seem to affect the oil pressure or the temp. any ideas would be welcome
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kryp2nite
Dodge Dakota
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7/02/2002
14:16:26
| RE: Low knocking sound
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Message:
belly pan TSB?
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flyboysdak
Dodge Dakota
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7/02/2002
23:19:42
| RE: Low knocking sound
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Message:
no i havent solved the problem.. i have kinda talked shop around but to no avail... i had a tune up that helped its almost like its a low rod knock or its the lifters or something like that......i had a lifter problem on my bronco..... what a nightmare. i hope this isnt the same problem
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Pistolero
Dodge Dakota
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7/03/2002
11:06:30
| RE: Low knocking sound
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Timing chain? Can you tell what part of the engine it's coming from? Have you tried to isolate it with a stethoscope?
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LOGIC71B
Dodge Dakota
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7/03/2002
20:03:55
| RE: Low knocking sound
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Message:
Flyboysdak,
I've got the same low end knock. I have'nt been able to locate it either.
Pistolero,
One thing I did do though is contact the Dodge tech's and asked them about the tensioner on my '98 3.9l mag. They asked for my vin # and after about 3 days I got an e-mail that said my truck was equiped with one from the factory! I thought that was kind of odd considering I also have alot of noise coming from the chain housing!
Go figure.
I'm about to give up on the tensioner deal and I have already started looking for a gear drive for the 5.2l mag. Only on prob! All of the ones I have seen so far are for pre-mag. Not the answer I have been looking for.
If anyone has found the solution to the low end knock let the rest of us know. ( it's a thumping sound heard loudest from in the cab at idle )
logic71b
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96Dak
Dodge Dakota
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7/03/2002
23:25:36
| RE: Low knocking sound
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Message:
My '96 3.9L made the same sound you are describing after the dealer ruined the engine. It was the rod bearings, or lack of rod bearings. It happened after they replaced the cam chain tensioner, and forgot to put any oil back in the motor. Doh! It was loudest on the driver side, and mostly from in the cab. They put in a new motor, but now I try to do all the maintance work myself that I can.
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LOGIC71B
Dodge Dakota
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7/03/2002
23:47:51
| RE: Low knocking sound
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Message:
96Dak,
That was'nt what I wanted to hear!
I always do my own maintenance and have not once forgotten to put the oil back in. Of course I do have 92k on it now! Hhmmm!!
Come to mention it I did see a little oil seepage on the rear of the motor when I changed out my clutch, but did'nt think twice because I had already taken to much time playing around under there and had to finish up.
I'll have to look into it this weekend!
Thanks for the input though,
LOGIC71B
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Dan Blodgett
Dodge Dakota
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8/04/2002
14:02:41
|  RE: Low knocking sound
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Message:
If you have a 3.9L V6, HAVE THE TIMING CHAIN TENSIONER INSTALLED!! I ran a copy of the "Magnum V6 - Timing Chain TSB" (found on SpeedTweaks - Tips and Tricks webpage). Gave it to the dealer service rep when I dropped off my '92 V6 Dakota at 80,000 miles. They installed the tensioner as detailed in the TSB and BINGO! This is the first time my truck has not rattled! The truck has had a clacking/clicking/rattle since new - I always thought it was lifter/rocker noise. The fix was not under warranty, so it cost me $390.00, but IMHO, it was WELL WORTH IT! Very quite - at last!
Thanks!
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kisley
Dodge Dakota
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8/05/2002
14:14:22
| RE: Low knocking sound
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Message:
yea i have a 98 3.9 with 50,00 on it and i have
that low knocking but if i put the high grade
gas in it it stops it but now my cad converter is
making and loud noise at certain rpm's i have
to take it in the shop for that. Anyone else have
that problem?
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Dave T
Dodge Dakota
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8/08/2002
15:26:01
| RE: Low knocking sound
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Message:
I had the same problem, with only 2700 miles on an 02 Dak. The dealer put in a new engine and it runs great with no knock.
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adam182003
Dodge Dakota
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3/02/2003
18:35:09
| RE: Low knocking sound
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Message:
i have a knocking in my motor u can only here it when u first start it and then it goes away when i rev the engin u cant hear it really but when i put it in gear and hit and hit that gas it gets really bad. i read some were it could an ignition problem and something with the cap and plugs. if any one has info for me i would really apreciat it
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LM
Dodge Dakota
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2/24/2004
15:40:59
| RE: Low knocking sound
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Message:
I have a 98 3.9, bought it used and I noticed a low knocking at idle. Does not seem to be a problem yet at 66,000 miles but would like to know what causes it.
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MattNC
Dodge Dakota
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2/24/2004
16:42:03
| RE: Low knocking sound
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Message:
Have a 98 3.9 v6 bought used has 51K on it and low knock at idle and 2000 durango 5.9 same thing also. Everything runs fine, doesn't seem to be problem, change oil on the dot. Dad has f-150 and ford did work and didn't put much oil in it and heard a knock, not as bad as what i hear from the dodge's but they ended up putting a new crank in it. would also like to know what is causing this.
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