Last post on Oct 18, 2006 at 8:06 PM
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Dodge Dakota, Truck
#4256 of 4362 Engine Roaring Noise - Just Started
Jul 17, 2006 (7:00 am)
Hello, I have read multiple posts on these forums about the roaring noise and while it seems everyone is talking about the same noise I am hearing, I am having a hard time understanding why my truck is doing it.
I have a 1999 Dodge Dakota 2wd V6 with approximately 115,000 miles on it. Just this past winter and spring my truck would make the roaring sound maybe a couple times a week first thing in the morning and last 2-4 minutes. While I had my truck in for a full tune-up I complained about this noise and they replaced the fan which they said had rusted out. Now I hear this noise every single time I start my truck, whether it is the morning, after work, or after being off for only a short errand. It lasts a shorter period of time usually only a couple of blocks or a minute or less.
I have read the posts that state that this is just a normal thing, which I would be fine with if it had always done this or it was only doing it in the temperature ranges people have discussed. However, this has only been happening about 6 months and the every single time I start roaring has only been happening about 3 weeks. I live in Central Ohio where the temp has been anywhere from 70-90 lately.
Any insight or suggestions that anyone could provide would be quite helpful.
#4257 of 4362 Re: Engine Roaring Noise - Just Started [kelly_dakota]
Jul 17, 2006 (2:12 pm)
I would venture that the fan clutch has gone bad. When the engine isn't running, can you spin the fan? It should be pretty easy to spin. I get the roaring sound every now and then after starting up. But, probably no more than 1-2 times per month.
#4258 of 4362 Re: Truck shut down and now Won't Start! (got fuel, got spark but no start) [jon1975]
Jul 19, 2006 (7:28 am)
I bought a 1992 Dakota that did the same thing the day after I got it. After the dealer replaced the coil and speed sensor it still did the same thing. It turned out that the screw that connected the ground wire for the fuel pump was loose where it connected to the body. Once it was tightened up I had no more problems. It is located under the hood on the driver;s side near the hinge.
#4259 of 4362 DustyK, RE 545RFE
Jul 19, 2006 (8:41 am)
Dust, a little help if you please. 06 Dak 4.7 545RFE transmission. Nephew drove truck, it was fully warmed up. When nephew came out of store and shifted to reverse truck wouldnt move. Wouldnt move in reverse or drive and set check light. By increasing rpm fairly high and holding tranny would suddenly engage and smoke the tires. Did this twice then started working properly. Nephew drove truck on home but was a week or so before I could check codes. Had codes of P0700 and P0841 with another P0700 pending. Warning lights went out as soon as I turned the key so suppose enough drive cycles had been completed.
Question is: Do you think the line pressure switch would be at fault or somewhere else in circuit. Intermittent electrical connection? I'm about out of ideas. Havent taken it to dealer yet, would like to have some idea if possible before I start trying to deal with some mechanic that may not be too sharp.
Truck also has set up a lot....I bought it last October and at time of the problem had 3800 miles on it so guess that is a possibilty also.
Thanks for any advice.
#4260 of 4362 Re: DustyK, RE 545RFE [jneal]
Jul 20, 2006 (10:57 am)
Hmmm. This condition could be caused by a number of things, including a blown IOD fuse, failed Throttle Position Sensor, electrical wiring problem, failed TCM or a TCM that's lost memory.
The P0700 is a "Transmission Control System Malfunction." I don't list a P0841. Are you sure of the code? Anyway, the P0700 tends to make me believe you've got a TCM problem.
Since this is an '06 and within warranty I would strongly recommend that you take this to a dealer.
Jul 20, 2006 (12:26 pm)
Where to start?...about a week or so ago I was getting a check engine lite. It came and went. I borrowed a scanner from autozone and pulled p1391 out. That dissapeared too. Then the truck started shutting off while driving it; but would start back up. Yesterday it did the same thing only this time it wouldn't start and "no bus" was in the display. Ive had the truck into Goodyear service center 3 times allready and they can't find the problem...oh yeah, truck started right up for them. Has 260,000 plus miles on it. Time for some new wheels I think. Any body have a clue on what "no bus" is ?
#4262 of 4362 Re: 99 dakota [cheetobandito]
Jul 20, 2006 (2:43 pm)
"No Bus" means that the instrument panel cluster is not receiving PCI data from the PCM. This could be a bad connection between the PCM and the cluster or an open fuse on the instrument panel (some years only).
The P1391 is Intermittent Loss of CMP or CKP. This is further evidence of a potentially intermittewnt connection between the PCM and the vehicle.
I'd advise going to a Dodge dealer where the familiarity and experience might expedite this repair.
Jul 20, 2006 (4:01 pm)
Thanks Dusty....pretty much what I was thinking....since the truck is running....for now. Might also have something to do with the loud buzz in the am band on the radio....goes up and down in pitch with engine rpm... and the low voltage output on the battery gage. Goodyear says the alternator is ok. The fan blower in the dash also seems affected by this problem...runs when it wants to. Every now and then...alltho not to often now... the buzz will stop and the battery gage will climb up to 14 volts; the buzz starts back up and the gage drops. Taking it to another shop gaureentees they can find the problem....I'll post the "cure" when I know.
#4264 of 4362 Re: 99 dakota [cheetobandito]
Jul 20, 2006 (7:14 pm)
Have you checked the battery condition? Weak and near death batteries in a Dak can do some very strange things. The buzz in the radio is a symptom I've heard of at least once that was caused by a near death battery.
Yes, please post the solution.
#4265 of 4362 2000 Dakota bucking and backfiring. Still need help!
Jul 21, 2006 (6:33 am)
I am posting this again in the event that my last post is lost in the archives and not getting viewed very often. I have a 2000 Dakota with 87,000 miles. V6 / auto / 4x4. It goes through fits where it bucks and backfires up through the throttle body. It does this when taking off mostly, but lately I have noticed that it is backfiring at cruising speed on the highway. When driving it has no power at all to accelerate when at cruising speed. Even when it is not having a fit, it is severely under-powered. It has no get up and go. I have changed the battery, complete tune-up, engine temp sensor replaced, had fuel system checked. Mechanic can't pull any codes from it. If it were an old Chevy, I would say that it was a timing issue because it acts just like a Chevy when the timing is off. My mechanic has told me that he has had 3 Dakotas in the past month in for the same problem and he is pulling his hair out too. I NEED HELP WITH THIS ONE AND I WOULD APPRECIATE ANY SUGGESTIONS.