Isx surging or rough idle

[Rawze]

I was going to ignore this one but I guess it is not going away...



-- First and foremost. Extensive testing of injector cleaners by many sources over the years has proven that NO LIQUID PRODUCT on its own that also does not destroy the seals etc. can reverse long term fuel deposit buildup in a fuel system by simply flushing/using it. Non-Damaging Injector cleaners CAN HOWEVER reduce/keep at bay, fuel deposit buildup if used regularly. - There is no simple liquid cure for ANY LONG TERM OR ENCRUSTED fuel deposit buildup inside injectors and fuel systems!.

-- NEXT -- If there is so much fuel deposit/contamination buildup inside the fuel system and injector(s) that it causes engine run issues like hard starts, excess smoke, etc.... THIS IS A VERY VERY BAD SIGN!!!. This is because all those deposits have made their way all the way to the injector tips where injection spray patterns have likely changed or become uneven. - This leads to an inefficient and unpredictable combustion process of which I HAVE LITERALLY SEEN WITH MY OWN EYES MORE THAN ONCE!!! where those bad spray patterns have caused everything from simple fuel mileage and other issues to washing out of the liners, cracked pistons, cracked heads, and various other problems.


BECAUSE OF THIS EXPERIENCE ---

Your grandma's old car she goes to the grocery store with and don't care much about?--- Sure, Why not some liquid cure if it works. On a commercial diesel engine designed to make you money where it could cost TENS OF THOUSANDS OF DOLLARS AND A LOT OF DOWN TIME when that hole gets burned through that piston, or worse,.. a piston goes through the block because of months of repeated detonation and excess wrist pin wear,... NOT RECOMMENDED BY ME!!! -- DO THE JOB RIGHT, SHUT THE TRUCK DOWN, REPLACE THE CLOGGED FUEL SYSTEM COMPONENTS AND COUNT YOUR LOSSES AS INSURANCE AGAINST THAT $25,000 REBUILD YOU PREVENTED!.

I see at least 10 or more trucks a year that are apart that CLOGGED INJECTOR TIPS AND FUEL DEPOSITS contributed greatly to their demise!. No liquid cure is going to reverse these effects with any kind of simple "flush!".

DON'T JUMP OVER A DOLLAR TO SAVE A DIME IN A COMMERCIAL ENGINE OR TRUCK!. -- IT SIMPLY IS NOT WORTH IT IN THE END!.

* Take a fuel sample or 2 and ahve filters analyzed for containments. FIND OUT what any contaminations there may be in your fuel system and take appropriate measures.

* TAKE THINGS APART AND INSPECT THEM! to see the extent of the damage/buildup --- THEN AND ONLY THEN can someone make a determination on a proper cure.

* PERFORM IN-ENGINE INJECTOR TESTING like performance test(s), cut-out test(s), and injector leakage tests.

* Suspect injectors need to BE REMOVED FROM THE ENGINE AND THE CYLINDER BOROSCOPED to ensure the injector is not causing fuel deposits, impingement problems, has a bad spray pattern, and/or other things that WILL EVENTUALLY LEAD TO ENGINE FAILURE!. -- IT AIN'T NO GODDAM LAWNMOWER FOR CHRISTS SAKE!!!.--- DO THE RIGHT THING AND TAKE THE RIGHT STEPS!

* Taking the time to perform a repair CORRECTLY AND THOROUGHLY YIELDS THE HIGHEST LONG TERM PROFIT!

* AFTER THE REPAIR/CORRECTION, TAKE STEPS FOR PREVENTION!. In the case of fuel system deposit problems, use an injector cleaner that is also a lubricant regularly instead of waiting until the shi#t is gunked up again. A good example,... My own truck MADE IT A MILLION MILES ON IT WITH ALL ORIGINAL FUEL SYSTEM COMPONENTS simply because i used an injector cleaner once a month AND used finer (10 micron) fuel filters to prevent those types of problems to begin with. -- AND EVEN WHEN I DID REPLACE FUEL COMPONENTS, -- THEY HAD NO DEPOSITS ON THEM,.. THEY SIMPLY GOT WORN OUT FROM MANY YEARS OF PROFITABLE PROBLEM FREE USE!.

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You guys can argue the details all you want to but I am not going to recommend ANYTHING LESS because i have seen the results of guys who take shortcuts and don;t maintain their fuel systems to high standards,.. IT IS UGLY AND CAUSES ENGINE FAILURES that are WAY MORE EXPENSIVE than the crap few days you had to GET OFF YOUR ARSSE and fix things right!.