The 2.3-liter engine was installed on the older model Isuzu trucks, and several problems can cause the engine to stall. Most of the complaints about the stalling of the 2.3L engine in the Isuzu have come from fuel or carburetor problems. Isuzu owners have reported these stalling problem occur during operation of the 2.3L truck.
The fuel filter on the 2.3-liter engine of the Isuzu truck causes the engine to stall when it becomes clogged with debris. Debris and dirt are prevented from flowing through the fuel filter so clean fuel reaches the engine cylinders. Once the debris and dirt build up in the fuel filter, the filter becomes clogged and prevents clean fuel from flowing through. The lack of fuel or gasoline is one cause of stalling. The fuel filter needs to be replaced once this problem occurs.
The throttle linkage on the 2.3L engine of the Isuzu truck causes stalling when the linkage is not adjusted properly. The throttle linkage is under the carburetor and controls the idle. The Isuzu truck can idle high if the throttle linkage is too tight and idle low if the throttle linkage is too loose. Either too tight or too loose causes the engine to stall under normal driving conditions. Adjust the throttle linkage to correct this problem.
The 2.3L engine on the Isuzu truck can stall if there is a vacuum leak in one of the engine components. The engine requires all areas to be sealed properly so air flows through engine. Once a break in one of the seals or connections occurs, the engine stalls because the vacuum seal on the engine is loosing pressure. It can be hard to determine which hose is leaking or has a broken connection, but the Isuzu owner can take the truck to a qualified technician. The technician has the proper equipment to determine where the vacuum leak is occurring and make the appropriate repairs.
