richmond910

Hey everyone, I'm new to posting but have enjoyed all the threads. I have a 1997 G.C. 5.2 engine, after it sets over night I have to cycle the key on and off 4 to 5 times before it starts, here is what I’ve done, new fuel pump, now ignition switch, last year new wires cap rotor, cam/crank sensor. Once it starts it good all day. I hope someone can help.

thanks
Mike

Davidson

Try chaning your Fuel Filter. If not, check your fuel pressure, and if that checks out, possible weak Fuel Pump. Good luck bud.

richmond910

Thanks Bud,
The fuel filter is on the fuel pump. that is new. Also I can not find the port to check fuel pressure, everyone say iy is on the driver side and it looks like a tire valve, but I can not see one.

purplegrocerygogetter

Right about here is where u might find it

richmond910

Thanks for the photo, But I do not have it on mine. its not on either side.I wonder if someone changed it before I got the Jeep.

purplegrocerygogetter

You do not have a fuel rail?

purplegrocerygogetter

And if i remember correctly.... This does not have a fuel filter, or it is located in the fuel pump its self. So that will not be the issue here.

richmond910

Hey Purple, It does have a fuel rail, and the filter is on the pump.

purplegrocerygogetter

I will go nack and post a pic of my jeeps. This pic is off the forum. I have same jeep. I have only had tranny issues with it which turned out to be a speed sensor. But I do know its on the drivers sideoff the drivers side. Cant imagine someone removing it....

richmond910

Purple
I know it sounds crazy, but it is not there. I went out today and sprayed it with starting fuild, it fired right up so this is telling me im losing fuel pressure, so the question is now is how can you tell what injector is leaking?????? there are no leaks anywhere that I can see.

94Crawler

Richmond910,
Could be your Fuel pump relay switch. Also you could have severe vacuum lock. This sounds strange, but unplug one of the smaller vacuum hoses in the morning, and see if it starts up. Do this on the first crank. It also could be a failing distributor. If the spark isn't going to all the cylanders, you may not be geting the combustion needed to start.

Bustedback

You may have an issue with the injectors bleeding off the fuel pressure after the engine is shut off.

richmond910

Hey 94Crawler
I will check the vacume in the morning. Thanks good idea....

Bustedback
I'm thinking the same thing, I took off the drivers side rail with the injectors attached and let then set out for 2 hrs, not a drip, I could not get the other side off because of the throttle linkage was in the way and I did not have a gasket to take it off. If the vacume does not work the 94Crawler said I will do that. and swap the relay

thanks

richmond910

94Crawler
I took off a vacume line and it did not help, I also changed the relay and that did not help. So I cycled 4 times and it started......Still searching

88_cherokee

does these cherokee's have some sort of check valve