Having problems with your 2001 Dodge Intrepid ?

Code 74 runninh lean how do I fix it - 2001 Dodge Intrepid

Posted / edited by AnonymousUser on : 17-01-2022

Answers :

The Oxygen Sensor(s) are the cause of running lean, usually. However, it could also be a vacuum leak....
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\012The age of your vehicle guarantee's a vacuum leak. It may sound silly but the truth is rubber grommets, and hose's shrink and dry out over time and the harsh environment under the hood makes it worse. Check all vacuum lines and fittings attached to the intake manifold, valve covers (pcv valve), and be sure to check for a vacuum fitting on top of the intake just behind the throttle body. Does it fit tight in the hole? You can seal loose fittings with a high-temp RTV (Red) silicone sealant/adhesive. Several small leaks add up and your engine, heat/AC, and transmission will be all to glad to tell you about it.
Repair Help & Product Troubleshooting for 2001 Dodge Intrepid

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