Need some help with my 98 V8 magnum
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Need some help with my 98 V8 magnum
So my Durango was running fine and I had been driving it for about 30 minutes. I went to a store and when I came back out. I started it and it immediately died. It would turn over but as soon as the engine caught and changed from staring to running it would die. Im not a mechanic by any strech but I did check a few things. I do have good fuel pressure coming from the injectors. I removed the O2 sensor above the converter on the exhaust but that didn't help. I also checked the distributor cap and wires and it seems like I have spark. It was really strange to me as it was running fine up until that point. I did have it in the shop about 2 months agp and had the ac pump changed out. I have used up all of my knowledge and still havent gotten anywhere with it. I dont really have the cash to just take it in and have the shop charge me an arm and a leg to check it out so any ideas would be awesome. Thanks
Could be your IAC solenoid. Try starting it up with a little bit on the accelerator. If it runs and dies once you let off the accelerator it could be a simple fix.
If that works I would recommend cleaning out your throttle body and IAC solenoid. What engine do you have? I am going to give you information based on you having a 5.2 or 5.9. I'm goin to quote hydra on this one.
If that works I would recommend cleaning out your throttle body and IAC solenoid. What engine do you have? I am going to give you information based on you having a 5.2 or 5.9. I'm goin to quote hydra on this one.
How to clean your Throttle Body:
Most people think that cleaning the throttle body requires a can of Carb/Throttle Body Cleaner and a quick "wash" of the bores. This may work, but only washes the dirt and cleaner down into your intake manifold where it can puddle up and break down the belly-pan gasket. Then, it also is pulled into the combustion chamber where is can foul up the spark plugs.
The proper way to clean your throttle body is to remove it from the engine (you'll need a small pan, some compressed air, and a new throttle body gasket for this procedure):
1. Remove your air hat from the throttle body
2. Disconnect the sensor connectors (TPS, MAP, and IAC)
3. Remove the four throttle body bolts
4. Lift the throttle body up and away from the intake manifold (place a rag over the manifold opening to prevent anything from falling inside)
5. Remove the three sensors (Do not drop them)
6. Remove the three screws for the throttle linkage (Not required...can be done with linkage attached)
7. Place the throttle body in a small pan and spray Carb/Throttle Body Cleaner in the bores, underside passages, and ports. Let soak for about a minute.
8. Spray some more Carb/Throttle Body Cleaner in the bores and ports of the throttle body
9. Wipe clean with a lint free rag (baby diaper works well) and blow out all the ports with some compressed air (a small can from a electronics store works just fine).
10. Reinstall all sensors, then reinstall on your vehicle with a new Throttle Body gasket (don't forget to remove the rag)
11. Reset the computer: Engine Code Index (Check Engine Light?)
How to Clean the IAC Solenoid:
This is recommended at every Tune-Up to prevent excess carbon buildup on the IAC plunger. In some cases, you'll notice a slightly erratic idle quality. This is the first step in taking care of that problem. IAC = Intake Air Control (Solenoid).
1. Remove the Air Hat from the Throttle Body
2. Disconnect the sensor harness from the IAC Solenoid (Rear of Throttle Body)
3. Remove the two Torx-25 Screws
4. Remove the IAC Solenoid (Be careful not to lose the rubber O-Ring)
5. Spray some Carb/TB Cleaner in the IAC port on the Throttle Body and let it sit
6. Spray some Carb/TB Cleaner on the tip of the IAC Solenoid and wipe clean (Do NOT forcefully twist or push the plunger - You will damage the Solenoid. Wipe very gently.)
7. Spray a little bit more Carb/TB Cleaner in the IAC port on the Throttle Body and wipe clean with a thin/lint-free rag
8. Reinstall the IAC Solenoid (Make sure you don't lose the rubber gasket on the solenoid)
9. Reinstall the sensor connector and airhat
10. Reset the computer: Engine Code Index (Check Engine Light?)
Most people think that cleaning the throttle body requires a can of Carb/Throttle Body Cleaner and a quick "wash" of the bores. This may work, but only washes the dirt and cleaner down into your intake manifold where it can puddle up and break down the belly-pan gasket. Then, it also is pulled into the combustion chamber where is can foul up the spark plugs.
The proper way to clean your throttle body is to remove it from the engine (you'll need a small pan, some compressed air, and a new throttle body gasket for this procedure):
1. Remove your air hat from the throttle body
2. Disconnect the sensor connectors (TPS, MAP, and IAC)
3. Remove the four throttle body bolts
4. Lift the throttle body up and away from the intake manifold (place a rag over the manifold opening to prevent anything from falling inside)
5. Remove the three sensors (Do not drop them)
6. Remove the three screws for the throttle linkage (Not required...can be done with linkage attached)
7. Place the throttle body in a small pan and spray Carb/Throttle Body Cleaner in the bores, underside passages, and ports. Let soak for about a minute.
8. Spray some more Carb/Throttle Body Cleaner in the bores and ports of the throttle body
9. Wipe clean with a lint free rag (baby diaper works well) and blow out all the ports with some compressed air (a small can from a electronics store works just fine).
10. Reinstall all sensors, then reinstall on your vehicle with a new Throttle Body gasket (don't forget to remove the rag)
11. Reset the computer: Engine Code Index (Check Engine Light?)
How to Clean the IAC Solenoid:
This is recommended at every Tune-Up to prevent excess carbon buildup on the IAC plunger. In some cases, you'll notice a slightly erratic idle quality. This is the first step in taking care of that problem. IAC = Intake Air Control (Solenoid).
1. Remove the Air Hat from the Throttle Body
2. Disconnect the sensor harness from the IAC Solenoid (Rear of Throttle Body)
3. Remove the two Torx-25 Screws
4. Remove the IAC Solenoid (Be careful not to lose the rubber O-Ring)
5. Spray some Carb/TB Cleaner in the IAC port on the Throttle Body and let it sit
6. Spray some Carb/TB Cleaner on the tip of the IAC Solenoid and wipe clean (Do NOT forcefully twist or push the plunger - You will damage the Solenoid. Wipe very gently.)
7. Spray a little bit more Carb/TB Cleaner in the IAC port on the Throttle Body and wipe clean with a thin/lint-free rag
8. Reinstall the IAC Solenoid (Make sure you don't lose the rubber gasket on the solenoid)
9. Reinstall the sensor connector and airhat
10. Reset the computer: Engine Code Index (Check Engine Light?)
Last edited by WhiteWidow00; Dec 18, 2010 at 12:55 AM.
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The accelerator also doesnt seem to have any pressure behind the pedal. I shouldve said that in my first post I guess. I have tried starting it by having someone else turn the key while I tried pulling on the throttle cable under the hood and I still get nothing. It always does the same thing. Cranks for about 10 seconds and then starts and immediately dies.
