Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello my name is Bob.
Sorry for the problem you are having.
Have you checked fuel pressure? Have you tried pour some fuel in the throttler body see if it will start?
Does it sound like it wants to start, backfire,
Did it backfire with out pouring gas?
I have had some bad cap and rotors before?
Do you still have the old one to try?
Not all of the ignition system set codes
Need to ask you do you have the firing order right
Have you checked the fuel pressure? If so what was it.
You said you replaced the complete distributor?
Why did you replace it?
Should be 56-62 psi.
Have you lined up the timing marks to see if it off?
Mark on front cover and the mark on the bottom housing of the distributor. It has the #8 on it. NOT #6 mark
Have you cranked it over to make sure the rotor is turning?
If you are 100% the timing is correct? Only thing would cause timing to be off. Would be the timing chain.
I have not seen that in a long time.
If it only backfires when you put gas in it. You would think if it was out of time it should backfire all the time.
Need to check fuel pressure.
Low fuel pressure will cause backfire running to lean.
There is no secondary pump. Only one and it is in the gas tank.
Can you hear the pump run if so? Than the relay and power is good.
Should run for 2 sec after key is turned on or all time when cranking.
As for a blockage you said you already replaced the filter. Not much else can get blocked.
A fuel pressure reading will help on which way to go.
Some auto part store will lend out fuel gauges or rent.
Before You replaced the distributor you had no starting problems?
I have seen crank sensors cause a backfire hard start or kick back.
Keep me posted
Have you pulled out any spark plugs see if there is gas on them?
I would crank it over a few times before pulling the plugs. Doing this because the gas may have evaporated over time.
Also try disconnecting the cam sensor on the distributor. If it starts it will set a code for it.
Just checking to see how it is going.