Question about 1999 Chevrolet Silverado 1500
Chevy 3500 359 vortec hard to start once it starts it runs fine starts fine. If it sits 12 hours it is hard to start
You will need to do a fuel pump pressure leak-down test, the pump must not loose more than 5 PSI overnight, u will need a cheap fuel pressure test guage, the test port is on the fuel supply rail to the injectors on the intake manifold, it looks like a tire valve but metal with a plastic cap on it, u may be able to borrow this guage from Kragen, Autozone or a parts store like them, if not they are very cheap, less than $20 US. Run the engine with the test guage hooked up, turn off the engine and then check it in an hour or so, if it drops more than 5 PSI then u will need to replace the fuel pump in the gas tank. One note make sure the connection for the guage is tight with no leakage or the test is invalid
Posted on Jan 16, 2009
When I go to start my 97 z71 with 350, sometimes it won't start, it acts like the timing is to far advanced, it cranks but the engine acts like it comes up on to much compresion or is firing to soon just like the old engines when you had the timing to far advanced, could it be the crank senser?
Posted on Mar 13, 2011
Change your rotor button they go bad quick on vortec motor s and cause you think its feul or fire proublems
Posted on Aug 04, 2012
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Posted on Jan 02, 2017
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