Where is the lock up torgue converter solenoid

Mike Butler

• 6674 Answers
• Posted on Dec 31, 2008

SOURCE: the engine dies when i put into gear 1st time but not after.

Sounds like idle speed motor may need cleaning, or replace. Doesn't cost more than $5-$10 for a can of throttle body cleaner, and some time, to pull it off & clean & retry before spending too much on other areas. Tuned up, and fuel filter changed lately?

SOURCE: I have a 2001 dodge 2500 ram. The other day my

your lift pump is shot. its on the back side of the motor behind the fuel filter housing

SOURCE: The truck does not run on idle. It starts, but as

look for a split in the hose on front of the throttle body or egr open

SOURCE: 1991 dodge dakota w/ 318 engine starts good, idles

Probably a TCC (torque converter clutch) problem. When applied, this clutch makes a direct connection between the the engine crankshaft and transmission input shaft (just like a manual clutch). If it doesn't release, then it's just like coming to a stop but not pushing in the clutch with a manual transmission.

Several possibilities for the problem exist within either the electronic or hydraulic circuits, but quite often it's the TCC solenoid itself. If that's the case, then it's a relatively easy and inexpensive repair. Check for codes in the computer and go from there.

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SOURCE: truck will start fine but if i drive it to say

Sounds like a problem with the idle air control valve on the throttle or an air leak into the inlet manifold. When the engine is cold the temperature sensor informs the ECM that the engine needs a richer mix to get started and to keep running. Once the engine is warmed up and the coolant sensor informs the ECM of that fact, then the fuel/air mix s set to the normal leaner balance. When you stop the hot engine and restart it the ECM is still seeing a hot engine and the idling is now very dependent on the idle air control valve for maintaining a sufficient running mix. If there is an air leak into the air ducting or inlet manifold the hot air under the hood will sucked in first. The ECM cannot sense this un-metered hot air and so the fuel mix is tool lean to fire. If it is the IAC there is an additional diagnostic to confirm if it is at fault. When the engine is running and the truck is stationary do you notice that when you turn the steering wheel (engage the power steering) that the engine badly falters and drops in revs for a second or two. If this is the case it looks like IAC valve is not functioning properly. To fix: 1) remove the air ducting from the front of the throttle and clean the throttle interior and plate until like new. 2) locate the IAC, its often on the throttle body and is a small device held on with a couple of bolts with an electrical connection to it. 3) Disconnect and unbolt and again clean thoroughly Check the two ports on the throttle body exposed by the removal of the IAC and clean these. Reassemble and it should work OK