95 Ranger 2.3 L low speed acceleration miss and hesitation
#16
02-07-2016, 08:54 AM
I was in the act of solving it when something fell into the intake and got stuck in a piston. I think the problems was a vacuum leak(s). EGR is a culprit but the line for the evap canister was shot and bleeding in a lot of air. This hooks to a nipple coming off the bottom of the throttle body. You might also check your pcv line which hooks under the manifold. So there are at least two hidden hoses that can and will leak on an old truck that you can't get to without pulling the top half of the manifold. The engineer(s) who designed this engine were A-holes and did not think about maintenance. If you remove the top half of the manifold, make sure you don't drop a screw in there. It is easy to do.
Perry
Perry
#17
03-28-2021, 02:54 AM
I’m having same problem
I thought primary are the exhaust valve side of the head, secondary, intake side. I do not know when they fire, but do not think they both fire at the same time.
I think the engine can run without the intake side being energized, but don't bet your paycheck on it.
You might want to check the coolant and air temp sensors. They cannot be proven 'liars' by the computer, so it takes their reported temperature values as real. That could lead to a too-lean condition when cold that ameliorates somewhat when warmed up, or to a too-rich condition overall.
I think the engine can run without the intake side being energized, but don't bet your paycheck on it.
You might want to check the coolant and air temp sensors. They cannot be proven 'liars' by the computer, so it takes their reported temperature values as real. That could lead to a too-lean condition when cold that ameliorates somewhat when warmed up, or to a too-rich condition overall.
#18
03-28-2021, 02:56 AM
I thought primary are the exhaust valve side of the head, secondary, intake side. I do not know when they fire, but do not think they both fire at the same time.
I think the engine can run without the intake side being energized, but don't bet your paycheck on it.
You might want to check the coolant and air temp sensors. They cannot be proven 'liars' by the computer, so it takes their reported temperature values as real. That could lead to a too-lean condition when cold that ameliorates somewhat when warmed up, or to a too-rich condition overall.
I think the engine can run without the intake side being energized, but don't bet your paycheck on it.
You might want to check the coolant and air temp sensors. They cannot be proven 'liars' by the computer, so it takes their reported temperature values as real. That could lead to a too-lean condition when cold that ameliorates somewhat when warmed up, or to a too-rich condition overall.
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