Question about 1997 Dodge Ram 1500 Club Cab
I just picked up a used Ram a month or two and it had cracked heads so we dropped a new engine in it. It has the 5.9L V8 and runs fine when your giving it gas, but when you let off fast it wants to stall out and die. This is a big problem when at stop signs or lights. It doesn't do it all of the time, but it is pretty frequent. Some days it will start without a problem, other days you will have to give it gas and slowly let off until its at the right RPMS and it will stay there. However, hit the gas and let off and it will quickly die again. There is one temperature sensor running to the ECM that is not plugged in due to the fact that the new intake did not have the extra slot, but im not sure if this could be the problem as it shows the same symptoms running both cold and when warmed up. It is NOT the TPS, i have already been down that road and am 100% sure of that. Sometimes if i clean out the throttle body with some carb cleaner it will run better, but after 100 miles or so will start stalling again. Ive been told its the fuel pump or filter, pressure regulator, possibly a relay... im running out of money and i have to get the truck running, somebody please give some definite answers.
CHECK YOR OYXGEN SENSOR
Posted on Mar 11, 2009
The problem sound lik a dirt aic motor Air Idle Control. This should be on the throttle body in the back if memery servesme right it has two t25 torex screws in it .take it out and the end willbe bullet shaped. clean this up with a wire brush on a bench grinder , then use carb cleaner on a rag and clean out the bore .the aic is what controls minimum air if this is dirty the engine chochs when the throttle blades close.
remenber to if this coolant sensor that you state is missing the vehicle could be running to rich because the pcm thinks its coldthis could also lead to the aic getting carboned up
Posted on Feb 08, 2009
It may be the IAC valve. The Idle control valve. You can clean this valve by spraying cleaner into the fuel system side. Remove the duct work from the air cleaning system. Look inside the hole of the fuel clylinder walls. you will see a couple of holes. That is the IAC. With the engine running at about 1200 RPMs spray cleaner aiming at the valve holes. Get a good 10 seconds of spray in there. Turn off the engine and let it soak into the valve. Then repeat the procedure. If it still does not clear up, remove the valve from the outside. Clean it. If it still does not work. Replace the IAC. it could also be the egr valve, fuel pressure regulator , etc. just as you mentioned. But try the above procedure out. Since you mentioned that if you cleaned the carb body. I thought about the IAC valve.
Posted on Feb 08, 2009
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