before i install the walbro gss 342 pumps,i was wondering if any one has had any problems with them before i install them on my truck :shrug:
walbro 255 pumps
- Thread starter lightning rod
- Start date
You should be ok.
You might want to replace the "Y" fitting with a metal version.
Rich
You might want to replace the "Y" fitting with a metal version.
Rich
wydopnthrtl said:
+1 :rockon:
Replacing the plastic wye with a metal one is MANDATORY, once done you leave yourself no reason to ever have to go back in the tank.
Well not that i can really offer advice, but I've had nothing but problems since in installed the walbro pumps. My trucks been down for 2 weeks trying to sort out the issue, and I will be installing an adjustable pressure regulator and bypassing the resistor. I cant figure out why some trucks run fine with the gss342's yet others suffer from massive drivability problems. Doesn't make much sense to me. But like the others said, def get the metal Y, and be sure you get fuel injection hose. The local shop idiot gave me the wrong hose 4 times in a row when i was asking for injection hose.
I heard someone talking about the "hose clamps" that come with the kits causing problems Anyone know what I am talking about? He said something about not being able to get them tight enough to keep the hoses from coming loose without causing a blockage in the lines from being over tightened. I know for injectors, I'd need a retune, but what about pumps?
Get fuel injection hose clamps part NAPA # 705-1226 or 705-1227
Silver04L said:
This happened to me. I lost all fuel pressure...vacuum was the only thing keeping it running.
The shop that installed the pumps repaired it free of charge. They even picked up the tow
fee. After I picked it up I discovered I had the same problem that Derek has. It would stumble
at low RPM's when the engine is underload. My fuel pressure gauge would flutter between
20-30 PSI. It ran perferctly once the secondary pump kicked in. I changed the fuel filter and
I haven't had a problem since.
I changed the fuel filter with the pumps. It has maybe 50 miles on it since the pumps were changed. I suppose i could have stirred up junk, but the tank looked spotless inside to me. It's about to make me rip my hair out.
This is probably not the problem, just something else that should be considered when changing things. If you open the fuel system between the tank and the filter, you should always blow that line clean to be sure that small pieces of rubber etc. haven't lodged in that line. Think about it, new pumps, new filter, still problems, any crud in the line between should be eliminated as another cause. But that is just my muddy thinking. :uh oh:
boca ron
Banned
camjocb did a good write-up on nloc to the 255 woes pretty informative. i also had to jump resistor from fluttering fuel pressure. jumping resistor solved problem immediately.
I have had no problems with mine 12,000 miles later.
boca ron
Banned
some do some dont ive only witnessed 1 have this problem out of 15 or 20 ive swapped out unfortunately it had to be mine, after no less, it ran fine for 3 mths prior to problem rearing its ugly head, i did notice tho it happened right after i changed a tune.
Rons Bolt said:
Was this at PSI Ron?
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