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Idaho83815
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Cocolalla
Joined
Apr 23, 2024
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Wednesday at 2:04 AM
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Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Had it on a scanner today. No issues. The Temp Sensor was reading about the same as his laser temp gauge, etc... so that is not...
May 10, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Sabinoerc, Idles bad when cold, but it does smooth out after 1-2 minutes and idles pretty good. I am assuming after transitioning to...
May 8, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Well the fuel pump did not help the cold idle and she still has the shudder/burble/pop out the exhaust at steady cruise. I also tested...
May 6, 2024
Idaho83815
reacted to
Schurkey's post
in the thread
'93 K3500, 454 TBI, poor drivability
with
Like
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Those figures are exceptionally good.
May 3, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Well the new pump went in. I opted for the 96 assembly. Only small difference was the vent tube location. I cleaned up the pump ground...
May 3, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Hey Schurkey, I have 13.6 volts at pump with engine running and battery a bit low in volts, and .003 volts on ground using a jumper wire...
May 3, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Hello all, I removed the bed today to get at the pump and wiring. The pump assembly has a lot of surface rust and looks...
May 2, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Also will get to have it on a scanner a week from Friday
May 1, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Thanks Richard. I checked it at the pump side of filter. Good Wix filter installed last week. The kit is a loaner so I can’t leave it...
May 1, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
I think I smell what you are standing in..... good ideas, thanks. Now how to get close to the pump and find the right wires.. I will...
Apr 30, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Well I will have to verify specs but this 93 7.4 with TBI should have 11-13 PSI. I am only getting 8 psi on key and 11-12 at idle. That...
Apr 30, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
I got a great loaner fuel pressure test rig in the loaner pool at O’reillys. It has the GM TBI capability at the filter with the fitting...
Apr 30, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Thanks Sabinoerc. I have seen/read where most folks test on pump side of filter, I suppose I can try on both sides to see if any...
Apr 30, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Thanks udidwjat. And for those suggesting the fuel pressure test, I have a loaner on reserve as soon as the previous user returns it….
Apr 29, 2024
Idaho83815
replied to the thread
'93 K3500, 454 TBI, poor drivability
.
Thanks Sabinoerc. I will be working on getting a fuel pressure gauge this week. When you say the ECU ground is on the CTS… you mean the...
Apr 29, 2024
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