| From | Message |
GSMarquis
Dodge Dakota
JOIN HERE
5/26/2002
23:55:52
|
 Subject: 4.7 low idle plus stalling
IP: Logged
Message:
i have a 2001 4.7 auto.....it started to idle wierd it goes from 700-500-650-etc it has stalled on 3 different occasions....i cleaned the IAC plunger, replaced spark plugs and i took off the 360airintake and checked TB for dirt etc...found nothing not even a little dust....what do i do now??
|
weasel_blw
Dodge Dakota
JOIN HERE
5/27/2002
00:03:10
|  RE: 4.7 low idle plus stalling
IP: Logged
Message:
Hey, have a 2002 4.7, same problem. Took mine to dealer, they said it is a programming problem that has not been approved for fixing yet due to the changes it makes in the emissions controls. At 3000 miles the idle speed will drop to 500 rpms and make the problem worse. You probably started noticing it then. Mine will stink through the exhaust after a short hard run, how bout yours? I think this is due to a timing problem also, making the cat converter get hot.
|
GSMarquis
Dodge Dakota
JOIN HERE
5/27/2002
00:14:05
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
i havent taken to a dealer yet....i just dont want them to keep it for like 2-3 days....a programming problem?....if i took my truck to a dealer and they said they couldnt fix it, i would be really pissed! i noticed when i first start it up idle is a perfect 650 no play just a perfect 650....if i let it warmup it is still a perfect 650....if i drive it for a few mins and go to a red light it goes down to 500 and lugs...sometimes it even stalls....
|
weasel_blw
Dodge Dakota
JOIN HERE
5/27/2002
00:22:43
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I'm having to keep in touch w/ dealer till they get an approval for the programming change. This has been going on since February. Getting ticked. Mine idles like yours, 650 till hot then down to 500 and stumbles. Dealer said to run the air so it would raise the idle speed.. HAHAHAHA. That's all he could do. Stinking exhaust bothers me more than the idle though.
|
Chris
Dodge Dakota
JOIN HERE
5/27/2002
20:27:47
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I had the same problem. One dealer told me it was programming, another told me to clean the throttle body. I took some gumout on a rag, held the throtle plate open, and wiped around the throtle body where it sits. Doing this every 15-20k miles keeps it running good. If you look in your manual, you'll see this cleaning procedure is even a 15k schedulaed maintenence item.
BTW, this isn't buildup that you can "see" or wipe off with a dry cloth. You have to use some carb cleaner.
|
xplikt
Dodge Dakota
JOIN HERE
5/28/2002
00:33:24
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a 2002 4.7L and mine does it too. I thought it was the A/C, being as it didn't work, but now it's fixed and the problem persists. It is not the cat, being as mine is a 2 1/2" hollow pipe and I still have the weird idle and stalling. I am cleaning the throttle body tomorrow and I hope this helps it a little bit, but it's only 6300 miles old, COME ON! I just changed the oil after 3000 miles from Mobil 1 10W30 to the same thing yesterday and today I sent techron cleaner into a gas tank. I am changing the plugs to 3932s tomorrow too if I get the opportunity.
I think it's the computer, specially if I do all this and it's still there.
BTW, unlike many of yours, mine rarely goes to 650, it did when it was new for the first like 3000 miles, then one day it didn't anymore. So mine's almost always at 500 :(
I plan on calling my local dealer sometime this week to see what they think.
Good to know I am not the only one.
|
weasel_blw
Dodge Dakota
JOIN HERE
5/28/2002
09:57:27
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
No, we're not the only ones with this problem. Just at my dealer alone (M&L Motors, Lexington, NC) I know of 5 '01 & '02 Dakotas with this problem. My service tech is getting as ticked about this as I am. Truck codes check fine but nothing seems to fix the problem permanently. Cannot get an answer from Dodge. Has anyone tried to fix this with the ATI controller from the speedtweaks.com site? I'm thinking of trying it.
|
xplikt
Dodge Dakota
JOIN HERE
5/28/2002
10:22:47
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I'm expected to get one when the new batch comes in...whenever that is, should check up on that.
|
BigD
Dodge Dakota
JOIN HERE
5/28/2002
15:12:11
|  RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a '01 4.7 with the same problem. Dealer loaded new software according to a "TSB". No more stalling, but the idle sits around 500 and is a little rough. The strange thing is that the acceleration is sluggish from a rolling stop-about 10-12 MPH. When the truck was new, it would take off like a rocket, not any more, unless I'm already going about 20-25 MPH. The timing seems different.
|
weasel_blw
Dodge Dakota
JOIN HERE
5/28/2002
15:46:24
|  RE: 4.7 low idle plus stalling
IP: Logged
Message:
Reply to Chris and BigD. I'm with xplikt on cleaning the throttle body, truck only has 8000 miles. Wouldn't think that the grime would build up that quick and cause this, especially since the problem has existed since new.
Curious, BigD, did your exhaust smell like rotten eggs (cat converter getting hot) after hard acceleration? If so, does it still do it now that the programming has been changed? This can only be caused by a timing problem unless the cat is old and gummed up.
|
BigD
Dodge Dakota
JOIN HERE
5/28/2002
16:21:18
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
Reply to weasel_blw. No bad smell at any time. Don't have any reason to think the cat conv. is malfunctioning/overheating. I had a Town and Country with 80+k miles that acted the same way as my DAK. Throttle body cleaning did the trick. I wouldn't want to think that my DAK with 12.5k miles already needs a cleaning!! The stalling problem went away with the TSB from the dealer. The idle seems low, but out and out acceleration when speed is at 10 to 12 MPH seems sluggish. Not to mention the truck will down shift to accelerate which was not required when it was new. It's almost like these DAKs get a few thousand miles on them and run completely different. The service manager and I drove the truck today and he said it was fine. Imagine that. I have it scheduled for service with a friend of mine who is a Tech. at another Dodge dealership. He is going to clean the throttle body, and he said there is a TSB out for the Trans. also. We'll see what happens.
|
WARREN
Dodge Dakota
JOIN HERE
5/28/2002
19:40:13
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
me too, same prob
|
jester
Dodge Dakota
JOIN HERE
5/29/2002
09:06:28
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I've got the same problems with my 01 4.7 QC. It idles rough and has almost died a couple of times. I am also experiencing the lack of acceleration from a stop doesn't pull hard like it did before. After 15 mph or so it all of the sudden starts to breath well again. I think it's definately a computer problem. Suppose a Jet chip would fix this?
|
BigD
Dodge Dakota
JOIN HERE
5/29/2002
09:22:46
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I agree with the computer problem theory. I would like to think that a intake manifold cleaning will take care of it, but I doubt it. As far as the jetchip is concerned, I'm not qualified to form an opinion, but I think we should pursue a remedy from Dodge. They screwed it up, they should fix it.
|
Lobo
Dodge Dakota
JOIN HERE
5/29/2002
13:30:36
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
How manny of you have K&N air filters or the equivalent? I wonder if the oil from the filter could be collecting in the throttle body. Just an idea.
-Lobo
|
BigD
Dodge Dakota
JOIN HERE
5/29/2002
13:38:39
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
Lobo-Good assumption. I have a K&N. I looked into the intake, right at the butterfly valve and there was a considerable amount of black, oily, build up.
|
Matt P.
Dodge Dakota
JOIN HERE
5/29/2002
14:07:45
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have the same problem. Mine idles great at start up and then drops to 500 rpms when it is warm. Mine does not stall. I have no mods on it (yet!). I was wondering if the transmission might be involved, because If it idles low when in gear and then the idle increases to 650 when it is out of gear. I have had the vehicle for only 2 weeks. I didn't notice the problem until about a week later (we don't drive it that much). Just a thought about the transmission.
Matt
|
xplikt
Dodge Dakota
JOIN HERE
5/29/2002
15:25:35
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a stock intake system, but I plan on changing the filter out real soon. I also thought that could be it since it needs to be changed about now, but if you all are having problems with it also, then that's probably not it.
BTW, I am using a manual transmission, so it might not be the auto tranny either..
|
BigD
Dodge Dakota
JOIN HERE
5/29/2002
15:35:57
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
Transmission could be a contributor. Dodge has a TSB for the transmission as well. I am having this update done to my trans. tomorrow, as well as having the intake removed and cleaned. I'll post the results.
|
BigD
Dodge Dakota
JOIN HERE
5/30/2002
14:05:09
|  RE: 4.7 low idle plus stalling
IP: Logged
Message:
I just got the truck back and it seems to be running better. No stall, no hesitation, and the shift pattern is much smoother. Acceleration is good. They removed and cleaned the throttle body, and the AIS motor. Said that the AIS motor had a lot of carbon build up. They increased the curb idle so it is now holding steady at 600. I didn't think that there was a manual adjustment for the idle, but there is. They also did the TSB on the tranny (new software) to enhance the shift pattern. The idle is much smoother but it is still a little choppy. I was told that it would be a little rough because these things run so lean. We'll see how it goes, but so far I am very pleased. BTW-they said keep using the K&N filter, didn't seem to think that the oil from the filter was getting into the intake.
|
Demon Dakota
DakotaEnthusiast
5/30/2002
14:17:35
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
There are too many variables here to pin it down to just a few things. It could be fuel problems, air control valve problems, computer problems, transmission problems. Some vehicles have it and most don't. It's really a PITA to figure out what the final solution is. Maybe there was a bad batch of catalytic converters or something. Try to think of everything that you guys/gals can when you notice the problem. What accessories are running, what temperature does it happen, what driving conditions are like...etc. I really hate problems like this...
|
gsmarquis
Dodge Dakota
JOIN HERE
5/30/2002
18:11:34
|  RE: 4.7 low idle plus stalling
IP: Logged
Message:
where is the manual adjustment....i didnt find it....also...where do you read and search about TSB's?
|
BigD
Dodge Dakota
JOIN HERE
5/31/2002
13:16:07
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
The manuel adjustment is the screw where the throttle linkage rests on, passenger side. The tech. at the dealership turned the screw one turn, which bumped the base idle up to 600. The dealer told me about the TSBs for the computer and the tranny. Both helped aleviate the problems.
|
BigD
Dodge Dakota
JOIN HERE
5/31/2002
13:19:41
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
Go to www.autotechx.com The owner is an ASE cert. Dodge expert.
|
weasel_blw
Dodge Dakota
JOIN HERE
5/31/2002
16:30:02
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I'm taking my '02 4.7 in for tests to see if what they call a "flash" shows up for any of the TSB's. Did you have to pay for your TSB's or did Dodge? Wondering if I should mention these to the dealer and risk pissing them off, especially since I have never said anything about the trans.
|
matmick
Dodge Dakota
JOIN HERE
6/01/2002
01:07:21
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a '02 4.7 and had that happen to me twice when mine was new. Read somewhere that it is a computer problem, when shifting from say reverse to drive, if you don't come to a complete stop, it will do it. I haven't had any problems when stopping at lights, although sometimes it does drop to about 350 and jumps right back up.
|
Dave
Dodge Dakota
JOIN HERE
6/02/2002
14:38:27
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a '00 Quad Cab with a 4.7 I had the same problem, but when I took it to the dealer in October of '01 they fixed it with no hassle. They reprogramed it and the engine runs great again (no stalling). I guess it all depends on which dealer you take it to. Good Luck!!
|
juniork
Dodge Dakota
JOIN HERE
6/03/2002
01:00:11
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I have a 2002 4.7L with a 5-speed. the other day I went to take off after idling for a few minutes and it would not rev up. It dropped down to 500 rpms and fluctuated from 500 to 650. I had to shut the truck off and restarted it, the problem went away. Is this the same thing you guys are talking about?
|
BigD
Dodge Dakota
JOIN HERE
6/03/2002
14:30:02
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
The dealer pays for the TSBs. I would have them do the one for the tranny also. After I had the Engine, and tranny TSBs done, the Throttle Body cleaned, and the base idle manually adjusted to run at 600 all seems to be well. I still have an occasional rough idle, dealer says it's normal, but I don't buy it. Other than that it runs good.
|
Andrew
Dodge Dakota
JOIN HERE
6/05/2002
18:15:39
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
I've got a '00 4.7 and mine will stall out just a few seconds after I start it, but normally only when its cold out. If anyone has an answer to this problem, please tell.
|
gsmarquis
Dodge Dakota
JOIN HERE
6/06/2002
19:50:26
| RE: 4.7 low idle plus stalling
IP: Logged
Message:
ok i just got it back from the dealer and they said they performed a new computer program upgrade but could not adjust idle because it was not approved by the emission standards.....what the hell....can i take my 2001 4.7 to a non dodge dealer and have the idle uped to about 650.....after i got it back it still was at 500 rpm and still stumbled but did not stall. they also told me the screw on the TB was a air setting not a idle setting.....they said please do not adjust this because it would start a whole crap load of problems....
|
| | P 1 Next Page>> |
