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Old 08-10-2010, 04:25 PM   #1
browserealty
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Easy to start in morning, hard to re-start after runing? Help please

Hello,

My wife has a 02 Suburban 1500 with the 5.3. In the morning the car starts right up. If you shut it off between 1-10 minutes it starts up fine again. If you wait for about 15-20 minutes or longer you have to crank it over and give it some gas to start. No I have tried the turning the key 3-4 times to build pressure after it sits the 15+ minutes or so and it still has a hard time cranking. Any ideas. One guy sait the check valve in the pump allowing the gas to go back into the tank. But remember I have pressured it back up by turning the key and still has a hard time cranking. But in the morning it fires right up. Any ideas? Thanks in advance...
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Old 08-10-2010, 05:45 PM   #2
2000CAYukon
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Re: Easy to start in morning, hard to re-start after runing? Help please

Fuel Pressure Regulator might be leaking fuel into the intake. Check the vacuum hose to the FPR and see if there is fuel in it.

//2000CAYukon
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Old 08-10-2010, 07:01 PM   #3
777stickman
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Re: Easy to start in morning, hard to re-start after runing? Help please

Also have the ECT checked when hot.
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