Just curious has someone replaced the fuel line in the past. If a smaller diameter line was installed. it would reduce the amount of pressure you are getting.
You figure a 1990s fuel system is pretty simple, you got to have fuel pressure at the right PSI which in the case of a ford v8 back then normally when it is running you should see 30-35 PSI, if you disconnect The regulator you should have a 5 to 7PSI increase the 10 psi like you actually saw isn't abnormal and it should still be good (I would definitely keep the OEM regulator around because the Chinese one will fail at some point lol... If you see less than 30 PSI with it running your engine at idle will normally have what feels like a slight misfire and it will get real bad when it drops down below 25 psi and at about 15-20psi it will usually fail to run or if it does fire up it will buck and kick and be real hard to start... well since you replaced the pressure regulator already, that leaves a fuel filter, a fuel pump or a cracked line since you do not see fuel pouring out on the ground you can assume if there is a crack in the line it is on the actual fuel pump assembly that is in the tank or it's a fuel filter, since you are a car guy I am going to assume you've changed the fuel filter once or twice over the years so it is doubtful that is the problem, I will almost put money on it you have a fuel pump issue.
The front pump is definitely bad with the low, erratic readings and missing. I changed the fuel filter about 5k miles ago. It's been running fine on the rear tank since this video, even with the gauge reading 27-28 psi. Maybe the HF gauge reads inaccurately, I don't know.
My 95 still has the original pumps but only 131,000 miles on them. Had to change my regulator also, tried to find one NOS ended up using a BYD. My vacuum hose was wet with gas.when disconnected. Running rich and stumbling!
Thank you sir just what I needed to know.👍🏿👍🏿
Thanks for the review on the MD61. NICE pony tail!!
Seems like a nice little affordable fuel pressure tester. Thanks for showing us use of it Josh. Thanks for the video.
👍
Just curious has someone replaced the fuel line in the past. If a smaller diameter line was installed. it would reduce the amount of pressure you are getting.
No, it's all original. I also replaced the fuel filter recently.
Not the pony tail lol Hi Josh
My ponytail is awesome!
You figure a 1990s fuel system is pretty simple, you got to have fuel pressure at the right PSI which in the case of a ford v8 back then normally when it is running you should see 30-35 PSI, if you disconnect The regulator you should have a 5 to 7PSI increase the 10 psi like you actually saw isn't abnormal and it should still be good (I would definitely keep the OEM regulator around because the Chinese one will fail at some point lol... If you see less than 30 PSI with it running your engine at idle will normally have what feels like a slight misfire and it will get real bad when it drops down below 25 psi and at about 15-20psi it will usually fail to run or if it does fire up it will buck and kick and be real hard to start... well since you replaced the pressure regulator already, that leaves a fuel filter, a fuel pump or a cracked line since you do not see fuel pouring out on the ground you can assume if there is a crack in the line it is on the actual fuel pump assembly that is in the tank or it's a fuel filter, since you are a car guy I am going to assume you've changed the fuel filter once or twice over the years so it is doubtful that is the problem, I will almost put money on it you have a fuel pump issue.
The front pump is definitely bad with the low, erratic readings and missing. I changed the fuel filter about 5k miles ago. It's been running fine on the rear tank since this video, even with the gauge reading 27-28 psi. Maybe the HF gauge reads inaccurately, I don't know.
Check your center pump, that’s the high pressure one.
This truck is a 1995, I doesn't have 3 pumps. The lift tank pumps/high pressure frame pumps ended in 1991.
@@QuickSpeedShop I wasn’t sure, my 86 had one. Thought I would throw it out there.
a fuel pump can work but that rubber hose on the sender could be cracked
The gauge sender? It's brand new. If it was cracked fuel would be spraying everywhere at almost 30 psi.
My 95 still has the original pumps but only 131,000 miles on them. Had to change
my regulator also, tried to find one NOS ended up using a BYD. My vacuum hose
was wet with gas.when disconnected. Running rich and stumbling!