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-   2nd Generation S-series (1995-2005) Tech (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/)
-   -   Hard starting after sitting 01 zr2 (https://blazerforum.com/forum/2nd-generation-s-series-1995-2005-tech-41/hard-starting-after-sitting-01-zr2-90635/)

someone11 09-05-2015 10:39 AM


Originally Posted by er0ck273 (Post 654187)
if you only tested at the shrader valve near the distributor, you are only testing regulated pressure, set by the fuel pressure regulator, so the pump may be fine, without testing at the fuel filter, you cant determine the fuel pumps psi its sending to deem it within spec or failing to push the correct pressure

Right, but itll be quicker to take it to him and have him run the tests than it will be for me to sit here and wait for the parts to be shipped to be able to run the test at the fuel filter.

Also what are the chances it could be a fuel pressure regulator? I feel like it doesnt show those symptoms but im not sure.

er0ck273 09-05-2015 10:47 AM

apparently the fpr go bad in these things, especiall with the old style injectors, not sure if you have the upgraded model or as i call them, the dud model, i had the dud and upgraded to the newer style when my fuel injectors were clogged.

someone11 09-05-2015 12:01 PM


Originally Posted by er0ck273 (Post 654190)
apparently the fpr go bad in these things, especiall with the old style injectors, not sure if you have the upgraded model or as i call them, the dud model, i had the dud and upgraded to the newer style when my fuel injectors were clogged.

Fuel injectors are stock as far as I know.

someone11 09-10-2015 10:06 AM

New fuel pump put in yesterday, no cost to me. Let it sit all day and overnight, started up fine this morning. Guess it was a lemon fuel pump right from the box.

er0ck273 09-10-2015 06:10 PM


Originally Posted by someone11 (Post 654363)
New fuel pump put in yesterday, no cost to me. Let it sit all day and overnight, started up fine this morning. Guess it was a lemon fuel pump right from the box.

thats good to hear! as for me, im screwed i cant figure it out on my end.


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