2004 Jeep Grand Cherokee 4.7 won't start. Fuel pump not getting signal, WHY???

You may have a fuel filter problem or a fuel pump issue

check fuel pump pressure tap on fuel rail sounds like fuel pump is weak

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Your Jeep ecu is in need of repair. Your jeep is having a common problem known as the "Delayed check engine light" starting problem. Next time you try starting the jeep and it the fuel pump won't prime, look at the dash.....the check engine light is not on and the fuel pump will not come on until the check engine light eventually come on, on the dash. Have it repaired and it will eliminate the delayed check engine light start problem.

If you do it yourself, you may be able to find a pump for $150 give or take. If you take it to a shop or dealer expect the bill to be $500-800 or more. Most shops/dealerships won't use cheap parts because they want to make sure it will last. The fuel pump they buy may cost upwards of $300.

this is usually a fuel pump problem. around 300-400 at a shop plus a tow

Once you have identified the worn part just remove it from the car and go with it to a parts shop and ask for an identical replacement.

the fuel pump relay is bad replace it and now pay me

2 things: fuel filter needs to be replaced, if done already, tank and pump should be ok as vehicle is only 5 yrs old, but may be dirty from bad fuel and/or foreign contamination, have the tank flushed. plz rate-bozcro

try the fuel filter and make sure you have proper oil pressure!! Remeber if you have tried craking to many bad times then the plugs are going to be fouled out!! Means that they are going to be drowned with gas and need replacing!! Also make sure your fuel pump is coming on!! You should hear a hissin or a hummin noise back from the fuel tank!

sounds like you may have a fuel delivery problem,There is a fuel regulator that keeps a steady pressure this may have the same tendencies as a fuel pump cavatating also,Have a good garage do a fuel flow test as well as a fuel pump pressure test.