If nothing else, go to Autozone and they will likely have this available for you to borrow.
https://www.autozone.com/loan-a-too...it/oemtools-fuel-pressure-test-kit/913437_0_0
Starting issue
- Thread starter dross99_si
- Start date
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If nothing else, go to Autozone and they will likely have this available for you to borrow.
https://www.autozone.com/loan-a-too...it/oemtools-fuel-pressure-test-kit/913437_0_0
Let's put it this way. I would get that fuel delivery possible problem looked at very soon because I can guarantee you that if the pump goes south, it will not be in your driveway.
Like I said previously, monitor the fuel pressure especially on the 2nd restart where the problem occurs 90% of the time, a fuel pressure tester is $20 at harbor freight or you can rent one from the auto parts store for $25-30 for which they refund you upon return of the tester.
it is normal for the starter to keep trying to start the motor (after you release the key) under certain conditions they started implementing that around 2003/2004, dealer told me 2004 but my 2003 has the option. it's some kind of cold start assist but they may call it something else.
it is normal for the starter to keep trying to start the motor (after you release the key) under certain conditions they started implementing that around 2003/2004, dealer told me 2004 but my 2003 has the option. it's some kind of cold start assist but they may call it something else.
thompsoj22
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there is a duty cycle for a no start im sure, but i dont know how long it is? 5 to 6 seconds is way to long to fire the engine, i agree with fuel delivery as previously mentioned.
swathdiver
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If you want to borrow the Tech-2 Andy, it's yours.
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dross99_si
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So another question would be how could a P0442 be related to this starting issue because they began occurring at virtually the same time.
Could very well be a coincidence.
IMO, that code is not related. You said you replaced valves but I am sorry, did you say you replaced hoses? They get holes in them as well. If I thought your evap system was clogged somewhere or a pinched line then maybe, and I mean maybe, a vent issue is causing a problem with venting the tank and could maybe contribute to fuel pump delivery problems.
P0442=The P0442 error code is an evaporative emission control code and is an indication of a small leak being detected in the evaporative emission system. ... The evaporative emissions (EVAP) system is used to prevent fuel vapor from escaping into the atmosphere. Code P0442 stands for EVAP system small leak detected.
P0442=The P0442 error code is an evaporative emission control code and is an indication of a small leak being detected in the evaporative emission system. ... The evaporative emissions (EVAP) system is used to prevent fuel vapor from escaping into the atmosphere. Code P0442 stands for EVAP system small leak detected.
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dross99_si
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Right I am aware of the P0442 being a small leak detected. I have only replaced the gas cap, purge valve and vent valve. I have not replaced anything else.
The CEL and starting issues began occurring at the same time so that's why I'm thinking they must be related in one way or another.
It's just trying to connect the dots on this mystery. Why would a small EVAP leak cause an intermittent no start when engine is warm??
my guess is it's the fuel pump getting warmed up and then deciding to not work, especially if it runs perfectly fine otherwise, evap leaks are smog control related only, highly unlikely it would cause a starting issue of any kind. you could rip out the entire fuel evap system and the truck would run fine you would just have a check engine light. 2nd guess would be a ground problem but a fuel pressure test would lead you in right direction.
Your last sentence is what I am going to respond to. Like Wes said, "the small EVAP leak WOULD NOT cause an intermittent no start when engine is warm". You already said this is a PITA but don't talk yourself in to chasing something that is not related. Not saying it does not need to be repaired but no where in my years of experience does it make sense that it would be related. Too many people here truly believe that the fuel delivery is related to the problem. That decision to chase that down makes the most sense. Basics......makes most sense to me at all times and then branch out from there if needed.
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dross99_si
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dross99_si
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Came across this article a while back and saved it. Could be helpful..
https://www.justanswer.com/chevy/23jjv-2007-suburban-when-go-crank-sometime.html
https://www.justanswer.com/chevy/23jjv-2007-suburban-when-go-crank-sometime.html
HiHoeSilver
Away!
I 2nd this. When I got the long start/second try start, I immediately ordered the pump, ring, etc and planned for a saturday under the truck. I ended up finding rust-o-mania on the head/lines of the pump. Glad I did the swap on my own schedule is an understatement.
Given, mine was opposite, being only on cold, but if I turned the key to run for a few seconds ( to prime ), second time started, just like yours. I like where Wes's head is on this, warmed up pump deciding it's to tired.
swathdiver
Full Access Member
That certainly describes it now doesn't it?
another thing you can try also is when you go too do the 2nd start, don't start it just turn the key to run and leave for a few seconds, then turn the key off and then turn it back to run and let it sit again for a few seconds and then try to start the truck if it starts right up then it's most likely the fuel pump or related. doing this will prime the fuel system before you start it.
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dross99_si
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It really does. So possibly injector(s) or pump?
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dross99_si
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We will try this next time. I'll keep you guys updated. Thanks for trying to help us out.
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dross99_si
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Is this a huge bear of a job in the garage on jack stands? I would most likely be attempting this solo.
Or better to have someone with a lift tackle it?
HiHoeSilver
Away!
I made sure to be prepared and took my time being picky. Still had to run for a clip nut for one strap that broke. Sprayed the pump and tank straps with bedliner, etc. I did it Saturday afternoon and Sunday morning no problem. I backed it up onto my ramps.
Also ran that baby so close to empty, it wouldn't start until I rolled it back onto flat ground. Lol
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