Last post on Sep 16, 2013 at 12:14 PM
You are in the Dodge Dakota-2010 and older
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Dodge Dakota, Engine, Truck
#90 of 467 Re: 1999 dodge dakota knocking in oil pan? [dallase]
Feb 15, 2007 (10:25 am)
Well, it's very difficult to attempt any diagnosis of this type of problem over the net. There are a number of components that could cause a knock, and then there are "knocks and then there are other "knocks."
THe 3.9 is an exceptionally strong little V-6 design and over the years I've only seen one actually have a serious problem...and that was the fault of the owner. They most certainly don't have a reputation for connecting rod or main bearing failure, which I think is the implication when a noise is emanating from the oil pan area.
Because your not hearing this noise when the engine is cold it could mean that you have a connecting rod bearing that is worn or has been damaged. However, excessive piston wear or a bad wrist pin can also produce a knock that sometimes appears to be coming from the oil pan.
My recommendation is to get a stethiscope (sp?) and try to pin-point where the noise is comming from. Valve train components or a worn camshaft lobe can cause a knocking sound. I have seen two 3.9s with a bad timing chain and after dissassembly I noticed that the chain had been hitting the inside of the timing chain cover. They had a "knocking" sound, too. Don't forget accessory drive components, such as belts, pulleys, air conditioner pump, water pump, etc.
I have also witnessed a few Dodge truck motors that had a knock caused by a stuck bypass valve in the oil filter. In these cases there was a noticeable drop in oil pressure after the engine came to operating temperature.
What kind of motor oil have you been using?
#91 of 467 2000 dakota steering issue and engine bucking
Feb 16, 2007 (3:49 am)
I have 2000 dakota 6cyl 4x4. It sat for a while this fall and I did not use it for about a month. I went to take it for a drive and the power steering was acting funky. First, the steering wheel was nearly impossible to budge. Pump was making a whining noise. I checked fluid and it was a little low so I filled it up and then worked the wheel back and forth until it loosened up. Problem solved, right? NOT! Ever since, when I park it for the night and go to drive it the next day, the steering wheel turns as if the enging were turned off. If I force it and turn it from coast to coast a couple times, it loosens up and then steers fine until I let it sit for a while again.
Next issue. Engine is still bucking and backfiring and it downright refuses to go sometimes. Check engine light keeps coming on and code is for loose gas cap. I have done complete tune-up, all belts, 3 new gas caps, TPS, all to no avail. I just noticed the other day that my fuel filler pipe has a rust hole in it. Could this be causing the issue? I have heard someone mention that the problem could be due to a bad intake manfold gasket. Is this true? Is it a BIG job, as I do my own work usually. I am ready to bury this thing if I dont figure it out soon. I cant even trade it in running like this. Please help.
#92 of 467 Re: 2000 dakota steering issue and engine bucking [me2butch4u]
Feb 16, 2007 (5:45 am)
It sounds to me likvacuume your pwr steering pump is going bad mine is starting to do the same thing to. The only other thing it could be is the rack but thats pretty rare.. A good way to find out if its a big job is to call a local shop and tell them what you want done and how many hours it calls for... I do beleive that is not a bad job though i dought thats your problem. There is also canister under the truck about at the tank that has vacuum lines on it that the lines get cracked and will set the light off
#93 of 467 Re: 2000 dakota steering issue and engine bucking [me2butch4u]
Feb 16, 2007 (8:20 pm)
Yeah, your power steering problem could be the rack, but as the prior poster stated that's not very common on your year Dakota. I would guess that Saginaw (General Motors) power steering pump is beginning to fail.
The symptoms you describe are typical for a bad intake manifold gasket and it was a problem on the earlier Magnum engines. I can't say I've seen or heard or a 2000 with this problem and i though Chrysler had that fixed by then. Of course, those very same symptoms can be caused by other things, like weak fuel supply or weak fuel pump, a bad fuel pressure regulator, a dirty throttle body, vacuum leaks from any number of rubber hoses, a weak ignition coil, bad spark plugs, etc.
If you have a hole in your fuel filler tube you will definitely get a P0465 or P0456 code for sure.
#94 of 467 zero compression '01 4.7L 68K mi.
Feb 17, 2007 (11:02 am)
was wondering if i am missing something here with this engine? drove truck on sat.(ran fine) then went to work on mon. started to die at intersections idles very rough but starts fine when cold. there is no coolant bubling when running, or excessive oil blo-by, no intake or exhaust popping, changed plugs, coolant temp,checked injectors/coils all good pulled valve cover & all o.k. do i need a motor??
#95 of 467 Re: 2000 dakota steering issue and engine bucking [me2butch4u]
Feb 17, 2007 (2:31 pm)
Here is the scoop on your 2000 power steering. (assuming you have the 4.7L 4.7L V8 "semi-hemi" engine)
For model-year 2000 the Dakota got a brand-new front end design. It replaced the old steering-box-with a rack-n-pinion. The 4.7L V8 "semi-hemi" engine also had a brand-new design PS pump.
For model-year 2001, the specified fluid for this system changed to SYNTHETIC PS fluid. I suspect that Dodge discovered that "normal" PS fluid was not sufficent. Dodge changed the spec for the 2001 Daks to be ATF+4 (synthetic ATF fluid)
Personally, in my 2000, my steering was VERY stiff anytime the ambient temparture was below minus 5F. I tried several different PS fluids and most of them were troublesome.
I now run "RedLine power steering fluid" which is 100% PAO esters. (the very best synthetic lube that man can make) Since switching, I have NEVER had any issues with stiff steering no matter what the ambient temparture is.
#96 of 467 Re: zero compression '01 4.7L 68K mi. [pattysdodge]
Feb 17, 2007 (2:39 pm)
THe 4.7L V8 semi-hemi engine has proven itself to be VERY reliable. (There are very few other engines on the road that use a girdle made of special iron for the bottom end or MAGNESIUM valvecovers.)
What do you mean when you say you have "zero compression".... did you actually check the compression with a compression tester and ALL eight cylinders read zero? I simply cannot beleive it.
When was the last time you cleaned your IAC and checked your TPS? (I clean my IAC at least once a year.)
Also, a PCV valve stuck open would cause the symptoms you describe
IAC = Idle Air Controller
TPS = Throttle Position Sensor
PCV = Positive Crankcase Ventalation
#97 of 467 Re: zero compression '01 4.7L 68K mi. [bpeebles]
Feb 17, 2007 (4:25 pm)
i have no comp. in cyl. 1&4 others have 130# cleaned I.A.C & checked T.P.S. GOOD WORKING ORDER & up to spec'.yes it was checked w/ a real compression tester, looked down plug hole w/ bore scope valves appear to be working inside as well as visual check on valve train.
#98 of 467 Re: 1999 dodge dakota knocking in oil pan? [dustyk]
Feb 17, 2007 (7:54 pm)
I use Moble 1 and have for about 30,000 miles
#99 of 467 1999 dakota knocking in oil pan
Feb 17, 2007 (7:58 pm)
this engine is really pretty strong and carries good oil pressure it runs cool just has that knock when it warms up, the truck has had a new distributer put in at 35,000 and a new catalytic converter (excuse spelling)at about 40,000 mi.