Question about 1988 Ford F 250
ALL THAT SMOKE IS UNBURNED FUEL,SO ITS GETTING TO MUCH DEISEL TO INJECTORS AND THEY CANT BURN THE FUEL OFF FAST ENOUGH SO ITS JUST BLOWING RAW FUEL OUT THE TAIL PIPE,YOU MIGHT SEE IF THERE IS A ADJUSTMENT ON THE PUMP TO RESTRICT THE FUEL,ALSO IF YOU RUN SOME GOOD DEISEL FUEL ADDITIVES IN THE TANK AT FILL UP IT WILL REDUCE THE SMOKE BY LIKE 20%. HOPE THIS HELPS????
Posted on Jun 26, 2010
Before you do the next oil change,get a can of motor flush.
This is the inexpensive method the free up the rings and restore some of the compression.
Use Shell 15W40 oil ==
Do you know the history of your replacement engine?
When was the last timing belt change?
A loose timing chain and guide can cause injector timing problem.
==== Start monitoring the coolant level for protential head gasket leak. ====
To save time,I would do a high rpm (below REDLINE) highway ran to blow off all remaining diesel SOOT.
Let the shop to do a compression test. DO NOT DO THIS YOURSELF.
The max psi is 1850 PSI
=== Stay away from biodiesel blend fuel until you figure out what's the cause of the problem.
Use Diesel Cleen silver bottle and see is there any improvement. ===
Add the recommend dose of SEAFOAM into the crankcase to soften the valve stem seal.
Leaky valve stem seal can introduce oil drop into the cyclinders over-night. =====
Mointor any oil lose from valve cover.
Is the smoke only from tail pipe?
Please post answers and I will follow up on it.
Posted on Aug 24, 2009
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Posted on Jan 02, 2017
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