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Hard Starting problem..... Check Valve


 
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londonzombie
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Joined: 22 Feb 2007

PostPosted: Thu Feb 22, 2007 8:50 am    Post subject: Hard Starting problem..... Check Valve Reply with quote

Hi guys, My My grand cherokee has the common hard starting problem.
I belive that it is the check valve in the fuel line that is letting the fuel out of the lines when the car is off.

Which then takes a long time for the fuel o get back up to the injectors.

My question is I where is the check valve ? Is it in the Fuel Pump or the Fuel Pump module ?

Or its possibly in the fuel regultor but I think thats a long shot.

Hope someone can help my jeep is booked in to have the pump fitted but just wanted to make sure I had the right part before I take it in at the weekend.

Thanks in advance !
Mark
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jeepjaminet
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Joined: 28 Feb 2007

PostPosted: Wed Feb 28, 2007 12:39 pm    Post subject: Reply with quote

The problem you are more than likely experiencing is somewhat common but often remedied with a new fuel pump rather than the mechanic taking time to troubleshoot. It's all about the commission. Anything they recommend they get a percentage and anyone who says differently is lying. The problem from my understanding is more than likely a special o-ring that goes bad. It is between the upper and lower assembly of the fuel pump. The cost of the kit i believe is approx. 23.00. It comes with instructions, so if you know how to drop your fuel tank than it is easy. As you probably know there is a TSB with the kit number on it. I would give it to you but i'm on vacation and are not near my tsb's. Happy hunting.
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jeepjaminet
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Joined: 28 Feb 2007

PostPosted: Wed Feb 28, 2007 12:40 pm    Post subject: Reply with quote

The problem you are more than likely experiencing is somewhat common but often remedied with a new fuel pump rather than the mechanic taking time to troubleshoot. It's all about the commission. Anything they recommend they get a percentage and anyone who says differently is lying. The problem from my understanding is more than likely a special o-ring that goes bad. It is between the upper and lower assembly of the fuel pump. The cost of the kit i believe is approx. 23.00. It comes with instructions, so if you know how to drop your fuel tank than it is easy. As you probably know there is a TSB with the kit number on it. I would give it to you but i'm on vacation and are not near my tsb's. Happy hunting.
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