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Dodge Dakota Engine and Underhood Questions

384 messages, Last post on Dec 07, 2009 at 5:00 PM
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Help! I have a 91 Dodge Dakota Club Cab 4x4 w/ the 3.9 V-6 & automatic transmission. When I put it in park the engine revs to 2000 RPMs. I used to be able to get it to idle by tapping the gas a little. Now it just revs higher & higher. Shop checked it and can't figure out why. Local Dodge dealer doesn't work on "old" vehicles like this (they said this with a sneer). Need help from someone who knows older Dodge trucks. My shop guys are willing to listen to any help I can find - they're not super familiar with this vehicle, but they're honest and the best thing I have to work with right now. My truck has over 200,000 miles, so I guess I'm at a point where I have to decide to fix or get rid of it. I'd rather fix it, but I can't just keep pouring money in either. The shop guys disconnected something so it idles really low (almost won't when cold outside), cause I've gotta get to work somehow. They're searching for answers to - trying to find a mechanic that used to work at the Dodge dealer back when they still fixed these trucks. Anyone have ideas?
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Replying to: roadtraveller (Aug 17, 2007 8:55 pm) On that vintage your Idle Speed Motor could be binding and not returning back to the correct idle position. This was an occasional problem in those years. If you disconnect the Idle Speed Motor and the idle goes to rest, you could have a bad Coolant Temperature Sensor, a Fuel Temperature Sensor, or a faulty computer. Make sure that the cables going to the throttle lever on the throttle body are not binding or sticking. Regards, Dusty
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Replying to: dustyk (Aug 18, 2007 11:16 am) Thanks again, Faith.
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Replying to: roadtraveller (Aug 19, 2007 10:43 am) I'm not sure what hose you could be refering to, but nothing should be disconnected! If the connector has been disconnected from the Idle Speed Motor, then I suspect this is what's causing your problem, since you indicate that the high idle problem has not returned. As previously noted, the motors in that vintage sometimes had a tendency to bind and not allow a return to normal idle. Unfortunately, I have seen one that was caused by the computer sending a constant signal to the motor. Right now the throttle stop located on the front of the throttle body and contacts the linkage at rest is acting as the idle position. The Idle Speed Motor needs to be working correctly in order for the engine to operate properly. I think on '91 throttle bodies the stop was adjustable, but it is not recommended if you ever repair the idle speed motor issue. Regards, Dusty |
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Replying to: budgurl07 (Jul 30, 2007 8:38 am) |
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It was running ruff so I thought that i would do a tune up and I don't know if I have the wires in the right order.
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Replying to: psigler (Oct 15, 2007 5:36 pm) Before we can help you get the ignition-wires hooked up right... we needs to know what engine you have? (The Dakota is availabe with 4 different engines) |
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I have a 2000 Dodge Dakota R/T engine 5.9 360 My problem is loss of power at high RPM’s at 60 mph if I floor it, it will down shift and no increase in speed. If I just give it a little gas so it will not down shift I can get as fast as I want. Well maybe not as fast as I want but fast enough. The auto parts store ran a code check and it is misfiring cylinders 1&3 So far I have changes plugs, wires, cap, and ran two tank of fuel injector cleaner also my fuel presser in 48 lbs. I was thinking about changing the fuel injectors in 1 and 3. What would you say my next step be? |
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| I have a 2001 Dakota 4.7 engine 230,000 mi automatic trans,4X4. Starting last year when it got below 35 degrees I get a engine fault code P0202. I know it's for the no. 2 injector control circuit but I am not sure if it is a problem. I get the same mileage after the code as before (17.3) so am wondering if this is more of a cold start problem? It starts easy when warm or cold any help is appreciated. Thanks, Frank | |
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i have a 95 dakota with the 318, first off my truck was stalling going down the road and at red lights then it finally died and would not start just roll over ihad no spark and no fuel so i changed fuel pump and new plugs,wires,ect.. still nothing so tried a reman computer and changed all the relays,cam pos sensor, crank sensor still nothing,started tracing wires and found the red wire from auto shutdown relay to the computer was corroded fixed and the truck fired right up. now the truck has alittle miss at idle and going down the road if u give it alitttle gas and let i level off at a certain rpm the truck will backfire and start jerking also the truck would stall sometimes it will start and sometimes it wont. found out the plastic piece that hold the wire on the bottom of the coil was broke replaced the coil and the wires were loose so i filled the plug with dielectric grease. that seemed to fix the stalling problem but the backfire and jerking is still there and seems to be getting worse. yesterday i took the fuel rail and the injectors out inspected everything and cleaned everything. injectors seem to be electrically sound. also changed tps,torqued intake down, checked for vaccuum leaks none were found the only code i could retvive was code 12 (1 flash pause 2 flashes) and by the chiltons book is memory standby power lost. the book doesnt say what that is. the only thing that i can think of that hasnt been looked might be the catconverter or o2 sensor which the sensor was replaced 20,0000 miles ago is there any suggestions out there or any answer on the code im getting . by the way i have 107,000 miles on the truck
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