Search results

Broke out the trusty TM's. Guess you have to also know if you have a mix and match booster pump. Troubleshooting manual shows the first LDS had no over pressure valve in the secondary fuel filter block. Looks like they put it in the booster pump. Then they put the over pressure in the fuel...

GunFreak page 24 line K right hand side LDS 465 trouble shooting manual. If you are talking about the booster pump pressure valve then it needs to be correct. You will see it starts to open at 60 psi then return pressure back to inlet side of booster pump. Now if you are talking about the system...

Well glad you got it figured. You did throw us off with saying new filters so some of us dig right in with other things that could be wrong and it was just filters / tank sealer. Guess the first post about what is wrong should be change all filters and see if that is the problem. Yea the stuff...

I would think that a pressure drop when the motor starts on your in line pump would be normal. Would seem like the inline pump since it has restriction from filter / lines and booster pump it will build pressure. Now engine starts and booster kicks in and restrictions become much less and in...

Believe it was member Gunfreak thread had trouble like that. His was the IP booster pump. The over pressure valve on the secondary if it opens can cause a loss of fuel pressure if it opens when running also.