need help with fuel problem please
#1
need help with fuel problem please
I have 97 blazer with 4.3 it was hard to start it would run good once it started now it wont start unless you use stating fluid it has good pressure at lines where it goes into fuel meter body any have any ideas that could help figure whats going on any help would be greatly appreciated
#2
Have you actually measured the fuel pressure with a pressure guage? Do you hava a check engine light on? Do you have any stored codes?
Could be a cold start sensor but at this point i am just guessing without more info.
Could be a cold start sensor but at this point i am just guessing without more info.
#3
yes it was measured with a pressure gauge its in spec no codes or check engine light
#4
It only takes 3 things to start an engine:
1. Air
2. Spark
3. Fuel
We assume the engine is getting air and you say that the fuel pressure is 'in spec', so what does that leave? Spark. Have you verified that you are getting fire to all the cylinders? And just to satisfy curiosity, do you remember what the actual fuel pressure readings were?
1. Air
2. Spark
3. Fuel
We assume the engine is getting air and you say that the fuel pressure is 'in spec', so what does that leave? Spark. Have you verified that you are getting fire to all the cylinders? And just to satisfy curiosity, do you remember what the actual fuel pressure readings were?
#5
its got spark it will run on starting fluid pressure was 59 psi key on not running
#6
You may have a problem with the spider. Anyone else got an idea?
#7
Classic symptom of low fuel pressure. For the CSFI system, 59psi is too low for the poppet valves to spray correctly. Key on, engine off, fuel pump running, pressure must be 60psi to 66psi and remain above 55psi for 3 to 5 minutes after the pump shuts off.
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