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ktinfv
Dodge Dakota
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10/26/2004
17:28:01
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 Subject: 2000 4.7 idle adjustment ?
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I have a 2000 4.7 auto 4x4. Is there an idle adjustment on this motor ? It idle's @ 500RPM, per the tach, and it seems a tad bit to low... TIA, Kurt T.
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01Motorsport
Dodge Dakota
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10/27/2004
09:25:36
| RE: 2000 4.7 idle adjustment ?
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It may simply be that your throttle body is dirty, or PCV valve or spark plugs are due a change. An easy mod for a 2000 4.7 with the 65mm TB is to use a 2001-up 68mm TB. The PCM will adjust to the difference automatically.
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mrman
Dodge Dakota
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10/27/2004
19:48:37
| RE: 2000 4.7 idle adjustment ?
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My idle was a bit low also. I did the cleaning - no difference. I took the TB off and used a small straight edge screwdriver and popped the security pin out of the idle speed adjustment screw. After a small shot of PB blaster on the idle screw(it's a torx screw that looks like it was sprayed with a bit of blue loctite) I turned it one full turn clockwise and reinstalled the TB. Idle is now around 650.
Also, if your Dak idles funny, up-down-up-down with the occasional stall, you can leave the air/heat dial on one of the settings that engages the a/c compressor. Of the 7 settings on the dial only "floor" and "front panel" do not engage the compressor( at least on my '00). With the compressor engaged the idle will be bumped up a bit.
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Izzy
Dodge Dakota
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10/29/2004
09:20:53
| RE: 2000 4.7 idle adjustment ?
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I did the cleaning on my bored out stock TB and my 500 rpm idle has not changed. I have already changed plugs.
As far as the funny idling, up-down-up-down with the occasional stall, thats a TPS sensor that needs to be changed. I paid $25 plus change at Autozone for mine and the "funny" idle went away almost instantly.
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mrman
Dodge Dakota
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10/30/2004
13:27:59
| RE: 2000 4.7 idle adjustment ?
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Izzy, I have the up/down idle, but not consistantly. It's different every time I run my Dak. One time it will idle rock solid, the next it's back to the up-down. A new TPS will solve this? I thought it was a computer problem.
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Kowalski
GenIII
10/31/2004
05:48:42
| RE: 2000 4.7 idle adjustment ?
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Message:
Probably sensor or IAC problem.
Lead, follow, or get out of the way
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fknfrnk13
Dodge Dakota
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10/31/2004
16:53:08
| RE: 2000 4.7 idle adjustment ?
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I have a 2003 V8 personal and a 2001 V6 work truck, both dodge daks, both with the pesky up-down idle. The '03 only has 13000 miles on it.
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kj
Dodge Dakota
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11/02/2004
15:56:04
| RE: 2000 4.7 idle adjustment ?
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Mine has done that since day one. If it isn't broke, don't try to fix it.
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mrman
Dodge Dakota
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11/02/2004
20:01:29
| RE: 2000 4.7 idle adjustment ?
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Kowalski, I can't tell from that photo, what brand of plow is that? Western? Meyer? what?
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Izzy
Dodge Dakota
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11/03/2004
13:07:36
| RE: 2000 4.7 idle adjustment ?
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MrMan,
Mine never did fluctuated when I had the AC on but if the AC was off then it did anytime I was idling.
Its only a $25 part and only takes a few seconds to change, it held on by 2 (T-20 or T-25 Torx) bolts and the harness plug. I got mine at Autozone (Discount Aito Parts does not stock it)and the Autozone guy actually let me put it on before I paid for it to verify that was my problem.
My up-down idle was gone instantly (no waiting on the computer to reset) so I went back in and paid him his $25.48 or whatever change it was.
Give it a shot.
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Kowalski
GenIII
11/03/2004
16:53:47
| RE: 2000 4.7 idle adjustment ?
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mrman - 7 1/2' regular duty Fisher - plows well, deflector on top helps with the deep stuff.
Lead, follow, or get out of the way
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mrman
Dodge Dakota
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11/04/2004
07:13:02
| RE: 2000 4.7 idle adjustment ?
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Izzy, I'm going to AutoZone today to get a new TPS.
Kowalski, I was curious about the plow because I have used to have a Meyer plow on my '78 Jeep CJ-7 Renegade(304 w/3spd) and a Western on my '86 Jeep CJ-7 Laredo(258 w/5spd).
The Western was nothing but trouble, seemed like every week something went wrong. The Meyer, on the other hand, lasted longer than the '78 CJ-7 did.
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Lurkin
Dodge Dakota
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11/04/2004
13:37:03
| RE: 2000 4.7 idle adjustment ?
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Message:
Izzy, mrman, I don't think that is the original poster's problem. You description is for an erratic idle, which as you've found, is probably the TPS or IAC.
ktinfv's description sounds like the typical low idle that all (most?) of the auto trucks have. My 02 has done it since it was new, and I don't trust Dodge to reflash my PCM to try and solve it.
The symptoms/situations that I see are:
o AC off
o engine warmed up
o after coming to a stop, idle drops to ~500rpms
o shifting to N, then back to D, will set the idle back to ~700rpms
o blipping the throttle while stopped will also set the idle to where it should be
o cleaning the TB has no affect
o mine doesn't stall, or seem to threaten it, it's just real quiet....
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Kowalski
GenIII
11/04/2004
17:23:52
| RE: 2000 4.7 idle adjustment ?
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Message:
On trucks that have idled low since new, I don't see anything wrong with turning the idle up slightly - just shouldn't be the first choice for people whose low idle is due to other issues. I had to adjust my idle when I switched to a 68 mm TB from a newer manual tranny truck; I suspect the TBs for standards may be set lower due to less parisitic loss through the tranny. You can get the special security torx head tool at a parts store or just do as I did - grab the threads with a pair of needlenose to turn it.
mrman - I had good luck with a Meyers on my '75 W100 years ago; have also had good luck running Fisher since. Its good to use some of the special electrical grease on the connections, that cured the trouble on the one occasion it didn't want to lift - just a bad connection. The light duty plows wear out eventually and can seperate where the plow attaches, took about ten years to fail like that, hyperextending when you go to angle it. This wear is accelerated if you run a full length steel cutting edge instead of the poly one; you can extend the life of the light duty cutting edges by just running some steel plates at the outside corners. The regular duty are heavier over the road but hold up very well.
Lead, follow, or get out of the way
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WILSEY
Dodge Dakota
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2/22/2018
12:52:19
| RE: 2000 4.7 idle adjustment ?
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Message:
Very simple fix. 1st: Turn cabin air control knob to Rear Window Defrost only. This activates an idle increase for increased electrical use to 700 RPM but low blower air will flow except when it is in this position, even if all controls are in the off position. 2nd: Disconnect air compressor connection at air compressor. (No harm done) This prevents the air compressor from engaging intermittingly. ANYTIME the cabin control or motor control is activated, the compressor will run intermittently briefly on and off without your knowledge.(No AC felt) You can avoid this engineered planned part breakdown for exorbitant repair costs.
Problem solved.
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Dave D
Dodge Dakota
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6/03/2018
01:28:07
| RE:2003 Dodge Dokota V8 4x4 ?
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My truck likes to stall out frequently when I come to a stop or change from Drive to Reverse or the other way around. Could the be the throttle sensor and could it be something else. It also likes to shift back and forth out of overdrive. the fluid appears clean and it doesn't smell.
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Will0351
Dodge Dakota
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4/01/2020
11:33:39
| RE: 2000 4.7 idle adjustment ?
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Message:
So working on my brothers truck (I know this is
old thread) it's an 03 with the 4.7l the battery
died and alternator was bad as well so I replaced
both. Now after the replacement I'm getting the
idle up and down and once its run a little it
stalls.
So as is typical I suspected the usual culprits
the IAC and TPS so I replaced both and cleaned
the TB some. Didnt take it off to do it just
around the butterfly and as far in as I could
reach as well as the hole for the IAC which was
pretty nasty. Still no change.
So I'm at the point to thinking of adjusting the
idle up a little because it runs fantastic
otherwise. Any ideas??
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