'98 Blazer cranks, difficult starting

Jan 06, 2004 0 Replies

... I suspect injection issues...


- Symptoms started without warning



- Cold temps 30 degrees or less



- Blazer sitting for a couple days without being started



- Fuel pump runs for 2 seconds when ignition is on and stops correctly



- Plenty of spark



- I don't know the fuel pressure



- About 96K on the clock



If I mash the throttle to the floor I can get the engine to start and it behaves like its way rich, so I'm wondering about a leaking fuel pressure regulator or something, though all the searches I've performed seem to discuss CPI and this is an SFI (SPI?) system I believe.



Once started and running smoothly it will the restart without issues until sitting overnight. Not 100% sure it's temperature related because this was noticed only yesterday.



I'm not fond of bringing vehicles to a mechanic unless I'm at the end of my rope, so advice as to procedure is very welcome!



Thanks,



Jeff


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