have the injectors cleaned with direct injection cleaner, not any additives. they may be dirty or need replacing

Roy

Answered by ASEMaster6371 (expert)
24,836 answers provided

Yes there clean around 42 ponds pressure on each one

Response from Paulypet001
1 question asked

ok, how do you know this?? pressure can be good but if the spray pattern is off, this is the result.

Roy

Answered by ASEMaster6371 (expert)
24,836 answers provided

Yes there clean around 42 ponds pressure on each one when the mechanic tested all them not sure how he did it ? it was after the fuel pump and sending unit was replaced then he did a smoke test? And found the intake gasket had a leak

Response from Paulypet001
1 question asked

ok, you still dont get it. pressure is not an issue. unless he took the rail up and observed all the spray patterns, you cannot be sure of the actual pattern.

assuming all his other work is correctly done, you are down to this with the injectors. he can do a test which he hooks up the pressure gauge and manual fires each injector and observes how much pressure drops on each. then you can determine which ones do not have enough flow

Roy

Answered by ASEMaster6371 (expert)
24,836 answers provided