Question about 1991 Toyota 4Runner

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1991 toyota 4runner hard start

So I have replaced fuel filter, spark plugs, plug wires, checked vaccum lines, fuel pressure regulator, oil change. The thing is its still having a hard time starting in the morning (its like hesiates and chokes out). Once you get it started it runs fine for the rest of the day. Still puzzled on what it could be. Do have the check engine light on saying its the water temp sensor i believe. Any ideas or thoughts would be appericated. Would save me taking it to the shop but its getting to look this way.

Posted by mblic_83 on

  • mblic_83 May 06, 2009

    already checked it was the clip. well see tommorrow if it sovles issue. sounds like it did when i started it didnt hesiate any. i was wondering how one can go about fixing that problem so it doesnt pop off again? thanks



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Water temp sensor is used to regulate the amount of fuel that is injected when cold. If its faulty it doen't know its cold and does'nt know it needs more fuel. Replace this sensor and it should fix your problem. If your lucky the clip might have just come off they often break their clips at that age.

Posted on May 06, 2009


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