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77 K5 Just had to do it

In an attempt to cure some driveability issues and prolonged hot starting time the Crawlabago is getting a new fuel pressure regulator and all new injectors.

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I replaced all the injectors in the 90 a few years back. I ran the numbers on rock auto and then went to eBay with delphi numbers and got a smokin deal. They came in card board boxes, 2 per box like they were sold in bulk.
 
Epic fail, seems the same. Came home on a chain after test drive.:confused:
 
Well suck. Didn't fix the problem and added another?
 
Well suck. Didn't fix the problem and added another?
Not really sure, kinda seems like original problem is worse. It started up and seemed to run ok but SES light came on and it never did before. I made it about 1/2 block on the test drive, it died and I could not get it to restart. My son has my scanner so no codes read yet. Still only has 50 psi fuel pressure.
 
Kinda curious if the 50 psi isn't so much a pressure issue, as maybe the quantity of fuel not there to support that pressure
Tank or pump issue?
 
Tank or pump issue?
I'm starting to lean that direction also. Gonna see what I can figure out tomorrow. Today still was not a total wash as it needed injectors regardless and the old pressure regulator was full of crap. Also I had never did injectors on an L29 so it was a good learning experience.
 
I'm starting to lean that direction also. Gonna see what I can figure out tomorrow. Today still was not a total wash as it needed injectors regardless and the old pressure regulator was full of crap. Also I had never did injectors on an L29 so it was a good learning experience.
Hmm
Garbage in the regulator is also not good. Be curious to see what the scanner says if you don't find something first

How long to change the injectors?
 
I'm starting to lean that direction also. Gonna see what I can figure out tomorrow. Today still was not a total wash as it needed injectors regardless and the old pressure regulator was full of crap. Also I had never did injectors on an L29 so it was a good learning experience.
One more thing I suggest you try, I have been battling with a L31 with misfire, bad idle and no start issues and I finally gave up and changed the only thing I hadn't, the ecm, and it was cured.
It even fixed the issue with the gas gauge.
Now it all works right.
 
So I pulled tank and pump yesterday. The only visible problem I found was the baffle was loose/broken from the hold downs. It lifts enough where the pump MIGHT be sucking it up against the strainer and causing a restriction. I ordered up a new tank, pump and pickup assembly from Amazon but most parts are a week out.
I just keep remembering my dads mantra when we were building street rods.
"If was easy son everybody would have one"
 
So I pulled tank and pump yesterday. The only visible problem I found was the baffle was loose/broken from the hold downs. It lifts enough where the pump MIGHT be sucking it up against the strainer and causing a restriction. I ordered up a new tank, pump and pickup assembly from Amazon but most parts are a week out.
I just keep remembering my dads mantra when we were building street rods.
"If was easy son everybody would have one"
:popcorn:
 
FWIW I just ordered a tank from rockauto and I had it in three days, shipped from so cal. Also, the new spectra tanks have a much taller baffle, about 3” tall.

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So I pulled tank and pump yesterday. The only visible problem I found was the baffle was loose/broken from the hold downs. It lifts enough where the pump MIGHT be sucking it up against the strainer and causing a restriction. I ordered up a new tank, pump and pickup assembly from Amazon but most parts are a week out.
I just keep remembering my dads mantra when we were building street rods.
"If was easy son everybody would have one"
We had to do a trail repair for this issue at BB15 on the middle of Gold Bar Rim in 95+ heat of the day. So at least you caught it at home.
 
I'll call and let her know to stay home, now that you're mobile

What was the cause?
 
Well I did...
Injectors
Fuel Pressure Regulator
Fuel Tank
Fuel Pump
Sending Unit
Dist Cap and Rotor
Access Door for Fuel Pump
In truth it actually needed all of the above but what actually fixed my no-start/die for no reason problem was coil and or ignition control module. I replaced both together as they are mounted on the same bracket.
 
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