REALITY CHECK ON INJECTOR RETURN RATES - DIESEL PLACE
Jun 17, 2018 On the standard injector return test, I came up with two injectors that were out of spec at 6ml return versus a maximum of 5ml for the highest API fuel. I moved on to the … From bing.com
INJECTOR RETURN RATE INFO - CHEVY AND GMC DURAMAX DIESEL FORUM
Aug 12, 2011 You are correct, they are balance rates. The only way to check the return rates is to actually measure the fuel (in a container) that comes back the return lines in 15 seconds of … From bing.com
Mar 26, 2012 I think it's this: Spec fuel return rate is less than 4 milliliters (ml) per injector, 12 ml per side. 3 ML's per injector or 12 per side is the fail spec for injectors, and I believe the CP3 is … From bing.com
LB7 BOTTLE TEST - HOW TO DO IT? RETURN RATE? - CHEVY AND GMC …
Dec 8, 2011 One to test the fuel pressure relief valve, and another to test the return rates on the injectors per bank. I have been searching a LOT and can't find the info on which lines to tap into. From bing.com
Dec 26, 2006 The Fuel Return System routes fuel from the fuel injectors, the junction block, and the fuel injection pump. The return fuel travels to the fuel cooler and then to the fuel tank. From bing.com
Jul 25, 2014 Took to the dealership to check the flow rates. They said it would take about an hour. 45 minutes go by and they came back and said in order to do flow rates on the LB7 they … From bing.com
Sep 19, 2011 Balance rates are as follows: 1.3, .5, 2.4, .3, 2.5, 1.2, 4.5, and 1.5. Tested by GM dealership. Truck has always had filters changed and 20% of fuel has... From bing.com
LB7 RETURN RATE CHECK - CHEVY AND GMC DURAMAX DIESEL FORUM
Jun 27, 2014 A return rate test is designed to measure the fuel that is going back to the tank. It is usually done when there is a "long crank, or no start" problem with the truck. From bing.com
Feb 1, 2014 Return rates are the amount of fuel each injector returns to the tank during a 15-second cranking cycle and involves a test set with 4 graduated cylinders and some engine … From bing.com
INJECTOR RETURN RATE TEST? - CHEVY AND GMC DURAMAX DIESEL FORUM
Nov 6, 2012 I just changed all 8 injectors on my 2003 gmc and my fuel mileage has dropped 2-3 MPG and seems to be low on power. The truck is not making oil and is no longer smoking at idle. From bing.com
Jan 17, 2015 To answer your question, yes one or two injectors can be stuck and dump all of your high pressure fuel to return. Causing a no start or hard start. It's likely you have wear/high … From bing.com
INJECTOR RETURN FLOW TEST STEP BY STEP - DIESEL PLACE
Oct 22, 2013 I will try to get a copy of the Enhanced Return Flow test procedure and post it, as I know many are suffering from this affliction. My mechanic will test my injectors using the … From bing.com
GO/NO GO RETURN TEST - CHEVY AND GMC DURAMAX DIESEL FORUM
Jun 1, 2019 The “bottle test” is one way to ID which bank contains troublesome injectors, but the test (I believe) involves pulling valve covers to isolate the return line from each bank. From bing.com
PROPER WAY TO CHECK BALANCE RATES - THE TRUCK STOP
Jan 30, 2014 To get the actual balance rate of your cylinders, you must know the fuel rate/injection amount at the time the balance rates are taken (this will become VERY clear in a … From bing.com
Jul 26, 2015 With the LB7 if you have the blue/white smoke at idle it is pretty much time for a set of 8 injectors and new supply lines. If you go back with the OE style injectors you will likely … From bing.com
Oct 7, 2012 Injector return flow is high but not near as excessive to cause that drastic of a fuel pressure drop. Max return per bank usually runs about 4-5ml. From bing.com
Feb 2, 2011 Factory spec is less than 2 ounces of fuel returned for the whole system (minus the CP3) for 15 seconds of crank time. SO hook a hose up the normal return portion and crank it … From bing.com
HOW TO CHECK FUEL RETURN RATES - CHEVY AND GMC DURAMAX DIESEL FORUM
Feb 2, 2011 Run the lines into 8 measuring cylinders and measure the return rate. They should all be the same. This test is tricky too because you have to get all the air out first. This is how … From bing.com
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