2000 Dakota 4.7 Surging at cruising speeds - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 HOME  FORUMS  GALLERY  GARAGE  TECH  CLASSIFIEDS  LINKS  MEMBER MAP  ARCHIVE  SPONSORS
INFO SITE HELP DODGETALK MERCHANDISE ARCADE TELL-A-FRIEND STAFF CONTACT US AUTO LOANS


DodgeTalk.com is the premier Dodge forum on the internet. Registered Users do not see the above ads.Please Register - It's Free!
Go Back   DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums > Dodge Truck, SUV and Van Forums > Dodge Dakota 2nd Gen (97 - 04) Forums > 2G Dodge Dakota General Talk

Closed Thread
 
Thread Tools

grayak
 
  2000 Dakota 4.7 Surging at cruising speeds - Posted: 03-30-2008, 01:44 PM
Registered User
Joined: Mar 2008
Posts: 5
Status: Offline
Post #1

I have a 2000 dodge dakota with a 4.7 liter and the issue i have is when setting the cruise at 70 or holding the throttle steady around 70,it runs great but the tack will jump up and down 2-4 hundred rpm,not thousand rpm,and i hear the engine surging, this will also occur at different speeds not just 70 just as long as i hold the speed.Does anybody have any ideas what could be causing this issue,or what i could do to fix this?? Thanks
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote
Sponsored Links
Advertisement
 

heavy01
 
 Posted: 03-30-2008, 09:01 PM
Registered User
Joined: Sep 2007
Posts: 167
Status: Offline
View This User's Gallery View This User's Garage
View This User's Dyno Entries
Post #2

man my 00 quad cab is doing the same thing ,been trying to correct problem for a year now with no luck ,but when i changed the plugs the problem went away for about six months and just recently return
let me know if get anywhere with it
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

Jmw132001
 
 Posted: 03-31-2008, 09:29 PM
Jmw132001's Avatar
Senior Member
Joined: Nov 2005
Posts: 10,802
City: Columbus
State: IN
Status: Offline
View This User's Gallery
Post #3

Welcome to dodgetalk.you need to do a full tune up on the vehicle. this is what mine done when the spark plugs were bad. get you some new spark plugs, plug wires and you should be good to go. also, moved this thread to the dakota forum
__________________
Justin
Resigned July 19th 2011
COIN HOLDERS ASSOCIATION MEMBER # 88

Beta tester for online games.

1998 Dodge Ram 1500 qc sport 360 4x4
208,300 original miles (as of 9-25-10)
new transfer case, brakes, shocks, radiator, water pump(twice cause of faulty parts), front balls joints, trak bar, front u-joints, tires, heater core.


View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

MosersRam
 
 Posted: 04-01-2008, 12:31 AM
Registered User
Joined: Nov 2007
Posts: 169
City: Bullscrick
State: PA
Status: Offline
Post #4

Is that still a 46RE trans? If so, it's the torque converter not locking up right, or not staying locked up. Look in the drivetrain section, there are a few threads or post it there and tactransman or one of the other trans guys will help you sort it out. Mine does it too, I am putting in the Transgo OD Jr. shift kit and new solenoids sometime in April.

It is also sometimes the the throttle position sensor or the brake light switch. Post it over there and the guys who know better than me will help you out.
__________________
1997 Ram 1500, 5.2L, auto, 2wd, 170K
Towing package plus second trans cooler, trans temp gauge
Felpro plenum gasket repair

Coming soon JR shift kit

Pulling a 20 foot Forester pontoon boat all around the Raystown Country
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

sjonnie
 
 Posted: 04-01-2008, 02:32 PM
Registered User
Joined: May 2007
Posts: 91
Status: Offline
Post #5

Quote:
Originally Posted by grayak
I have a 2000 dodge dakota with a 4.7 liter and the issue i have is when setting the cruise at 70 or holding the throttle steady around 70,it runs great but the tack will jump up and down 2-4 hundred rpm,not thousand rpm,and i hear the engine surging, this will also occur at different speeds not just 70 just as long as i hold the speed.Does anybody have any ideas what could be causing this issue,or what i could do to fix this?? Thanks
These are the classic symptoms of a faulty Throttle Position Sensor (TPS) and is a very common problem on these trucks. Just search these forums and you'll find numerous similar reports. Luckily a new TPS is $35 part from RockAuto and installation is a snap, quite literally
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

Bowhunter88
 
 Posted: 04-01-2008, 03:10 PM
Bowhunter88's Avatar
I Love Fat Chicks!
Joined: Mar 2008
Posts: 344
State: MD
Status: Offline
View This User's Gallery
Post #6

Funny I should read this today...

Sjonnie is right, its a faulty TPS sensor. Friday night I was doing 65 on a highway and thought my trans was slipping. Everytime I went over a bump the tach would jump up 200 rpms or so. The longer I went, the worse it got. When i parked it my Rpms jumped around while in park (although it hasnt done it since). Looked it up, and indeed these are classic symptoms of a bad TPS. Changed 'er out yesterday.

It is located ontop of the Throttle body and is the top sensor on the right while looking at the engine from the bumper. 2 Torx (sp?) screws hold it in. The computer will need to relearn the idle (at least mine did) for a few minutes.

I also had a slight stumble at idle, nothing big, but i could feel it. That is completely cured now!
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

ricbrk
 
 Posted: 04-01-2008, 10:57 PM
ricbrk's Avatar
Registered User
Joined: Jan 2008
Posts: 76
Status: Offline
Post #7

I had the same thing on 04 4.7. Dealer also changed tps and it went away. You'd think it would throw a code, but it doesn't
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

sjonnie
 
 Posted: 04-01-2008, 11:29 PM
Registered User
Joined: May 2007
Posts: 91
Status: Offline
Post #8

Quote:
Originally Posted by ricbrk
You'd think it would throw a code, but it doesn't
That doesn't make any sense, why would it show a code? The TPS is just a potentiometer and wear and corrosion causes the resistance to change in certain spots, but as long as remains within the expected parameter range the computer can't tell that it's malfunctioning.
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

grayak
 
 Posted: 04-04-2008, 02:23 PM
Registered User
Joined: Mar 2008
Posts: 5
Status: Offline
Post #9

Thanks for all the great help guys!! much appreciated!i think ill put my fluke meter on my tps sensorand see whats going on.
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

Bowhunter88
 
 Posted: 04-04-2008, 03:24 PM
Bowhunter88's Avatar
I Love Fat Chicks!
Joined: Mar 2008
Posts: 344
State: MD
Status: Offline
View This User's Gallery
Post #10

Let us know how it goes man
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote

bjones25
 
 Posted: 04-04-2008, 06:09 PM
Registered User
Joined: May 2007
Posts: 112
State: TX
Status: Offline
Post #11

I had surging a long while before it threw a code. You dont want to wait for it to throw a code, its not a pretty feeling. It will only throw a code when the TPS goes completly bad at that point your truck is almost undrivable because the transmisson doesnt know what gear to be in.
__________________
xxx
2001 Dakota CC 4.7, 4x4
Superchips 3715
K&N Air Intake
TB Lift
32's All-Terrains
Flowmaster 40 turned down
Hella Off-Road lights
Black tool box
Kenwood deck hooked
up to 2 12's
View Public ProfileSend a private message to %1$sSend email to %1$sFind all posts by %1$sAdd %1$s to Your Buddy List Reply Reply With Quote
Closed Thread


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2007 Dodge Dakota RAM MAN Rumor Mill & Gossip Talk 19 01-23-2007 04:04 PM
2002 Dakota, RC, 4.7, Auto, 2wd, Low Miles b1llyw For Sale - Dodge Trucks 2 01-01-2007 02:57 PM
Fuel rails 4.7 for 2000 Dakota & Durango Shortydurango For Sale - Truck Parts 0 12-27-2006 07:26 PM
2000 Dodge Dakota Ext. Cab 4x4 nabobz For Sale - Dodge Trucks 1 11-01-2006 10:03 AM
Idea: 4.7 in a 94 Dakota? trance_junkie 2G Dodge Dakota Performance Talk 8 05-06-2003 08:08 PM



All times are GMT -5. The time now is 10:50 AM.





Privacy Statement