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Discussion Starter · #1 ·
Hey folks,

Does anyone have a pic of the throtle body with their air cleaner off. I've had hard starting and other issues for a long time now and like a true jeeper, I drove through it.

I think it might be my map sensor.

I used to wheel in alot of mud and water. For a while when ever it rained the night before or if it was raining hard and the Squirrel cage known as a 2.5L was cold it wounldn't start. A couple years ago I changed the coil and that seem to work for a while. I change the O2 sensor last night and the hard stating continued, But anything that will help save on gas is my friend now!!!
I've read some posts that said some related things so I wanted to see what you folks thought?

Oh a price would be great!
 

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This is just one thing to check. Have you cleaned out the throttle body lately? If not, get some Barryman's carb cleaner, and spray the heck out of your throttle body, with the engine running. You can even dump a can of it, in your fuel tank, as it will clean out everything. It will also increase your octane, and is very good to do. Also your sensors can be cleaned as well.
 

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Discussion Starter · #3 ·
bluviking,
No I haven't but it really needs it....and I was looking for some good stuff too.
 

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That is the only cleaner, additive that I would recommend. It has been around for a long time, and the best part is, IT WORKS!! :D
 

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Discussion Starter · #7 ·
Maybe this will help. Essentially when the engine is cold I have to crank it for 10-15 secs stop for one second and start cranking again, It usually stars the second time with only about 3-4 turn overs. Before I change the coil I had to do this process three times. And of course forget about it when it rained...I would Kill the battery trying to start it.
 

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sounds maybe like a fuel pump. With out starting the engine turn the key to run let it sit for 1 sec then go back to off do this a few times then try to start the engine if it starts right away it's your fuel pump.:D
 

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Sahara is right, sound more like a fuel pump. If you were having problems running after you got it started, then I'd look at the IAC or MAP sensor. But to me its sounding like the fuel pump. Get ready for price shock.
 

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$$$$$$$$$$$$$$$$$$$$$$$$$:(
 

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Discussion Starter · #11 ·
I can hear the pump when I turn the ignition on. It's not loud or anything I just hear the little 1 second hum.

What do you think now?
 

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just because you hear it doesn't mean it's building up the proper psi. Try the on and off with the key a few times then start it.
 

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Discussion Starter · #13 ·
sahara, thanks for the feedback!! I have actually had this hard starting issue for a long time...Years. Its a 97 and I bought it in 99.
 

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so no one knows where the map sensor is? i cant find it, looked for days on line. Not one forum has its location. Can anyone answer the original question?
 

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On my 2.5L the MAP Sensor is located on the drivers side of the throttle body. Black plug, Its closest to the fender when you take the air box off and are looking directly at the tb.
 
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