2002 4.7 V8 idling low and stalling.

Asked by Apr 18, 2015 at 02:25 AM about the 2002 Dodge Dakota 4 Dr SLT Plus 4WD Quad Cab SB

Question type: Maintenance & Repair

I own a 2002 4.7 L Dakota quad cab. For probably 6 months I have been having some
troubles with the idle. The idle constantly changes from 700 to 500 RPM, and
sometimes lower. At some points it will start idling around 300 RPM and then when I
come to a complete stop it will probably stall out. It has stalled out multiple times,
sometimes when I'm at a full stop and sometimes when I'm coasting slowly (like
through a parking lot for example). Most times after it stalls it does not have any
problem starting back up, but it will idle low for a while. A few times it has stalled and
has not been able to keep itself running. It will stay running if I keep my foot on the
gas, but wont idle. I figured out that if I unhook the battery for a few minutes then hook
it back up it will reset and start idling around 700 RPM again, but that will last maybe 2
or 3 weeks. I have replaced the throttle position sensor, the idle air control, the battery,
and I have cleaned the throttle body and it continues to happen. Not really sure what
else I can replace to get this fixed. Insight would be greatly appreciated.

7 Answers

20

Check for any vacunt hose broke or leak shudder be fix the problem

20

gas pressure regulator

39,925

The only other things I can think of that would really affect your idle would be a dirty MAF or a bad Engine Coolant Temp sensor. You can remove your Mass Air Flow and clean it with a can of CRC MAF cleaner. Your ECT is usually under $20. Do you have a check engine light on?

1 of 1 people found this helpful.

Does it still have a low idle when your ac is on, or in neutral or in reverse.

I have had the same problem with my 2002 dodge Dakota. Replaced TPC, cleaned throttle assembly, had the fuel injectors/fuel system cleaned. Every time I do something it will work great for 4 or 5 days then go back doing the same thing

Did you have your vehicle smog checked recently? I believe at least in California that the new 2014 smog machines are reprogramming ECM's and PCM's to reduce emissions by lowering the minimum idle speed after you take your foot off the gas.

My does the same thing. I noticed the idle would go up when the a/c was turned on. Also at higher speeds (60-70 ) the rpms would fluctuate between 21 -1900 . This is very frustrating. Let me know if you resolved the problem

Your Answer

Add photo

Related Questions

Dakota

Looking for a Used Dakota in your area?

CarGurus has 3,787 nationwide Dakota listings starting at $1,500.

ZIP:

Search Dodge Dakota Questions

Dodge Dakota Experts

#1 Samantha Brown
Samantha Brown
Reputation 1,050
#2 banana
banana
Reputation 1,030
#3 Snidely
Snidely
Reputation 910
View All

Related Models For Sale

Used Dodge Ram 1500
404 Great Deals out of 10,927 listings starting at $1,000
Used Ford F-150
2,121 Great Deals out of 193,348 listings starting at $290
Used Toyota Tacoma
527 Great Deals out of 42,915 listings starting at $1,995
Used Chevrolet Silverado 1500
1,916 Great Deals out of 182,759 listings starting at $1,495
Used Ford Ranger
168 Great Deals out of 5,599 listings starting at $900
Used Nissan Frontier
337 Great Deals out of 20,922 listings starting at $1,250
Used GMC Sierra 1500
774 Great Deals out of 68,507 listings starting at $1,800
Used Chevrolet S-10
7 Great Deals out of 1,334 listings starting at $1,999
Used Toyota Tundra
439 Great Deals out of 34,564 listings starting at $2,500
Used Dodge Durango
264 Great Deals out of 21,136 listings starting at $1,500
Used Dodge Ram 2500
118 Great Deals out of 5,087 listings starting at $2,999

Used Cars For Sale

2010 Dodge Dakota For Sale
7 Great Deals out of 191 listings starting at $6,975
2009 Dodge Dakota For Sale
5 Great Deals out of 92 listings starting at $7,595
2008 Dodge Dakota For Sale
16 Great Deals out of 292 listings starting at $3,900
2007 Dodge Dakota For Sale
18 Great Deals out of 332 listings starting at $2,950
2006 Dodge Dakota For Sale
37 Great Deals out of 572 listings starting at $1,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.