BLACK SOOT coming out tail pipe it only smells like gas
10-05-2014, 11:45 PM
#1
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Year: 1995
Model: Cherokee
Engine: 4.0
BLACK SOOT coming out tail pipe it only smells like gas
hey my tailpipe keep shooting out black soot. It has no converter install its just has a muffler. im having other problems but looking at this while im down I got another link to to my main problem here
https://www.cherokeeforum.com/f2/95-...1/#post2947882
https://www.cherokeeforum.com/f2/95-...1/#post2947882
10-06-2014, 12:26 AM
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Easy enough to check the MAP tube;
There is a brittle little tube. It comes out of a rubber plug, low on the engine side of the throttle body. It runs back to the firewall, then up to your MAP sensor sort of high up there near center on the firewall. CRUCIAL!! The MAP will tell the ECU to dump fuel with less/no vacuum. Any crack or blockage and it will be pig-rich. (black smoke, fouled black plugs).
There is a brittle little tube. It comes out of a rubber plug, low on the engine side of the throttle body. It runs back to the firewall, then up to your MAP sensor sort of high up there near center on the firewall. CRUCIAL!! The MAP will tell the ECU to dump fuel with less/no vacuum. Any crack or blockage and it will be pig-rich. (black smoke, fouled black plugs).
10-06-2014, 12:33 AM
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Year: 1995
Model: Cherokee
Engine: 4.0
I changed the MAP sensor because it gave me a 14* on the CEL (1 click pause then 4) is there something i have to do to restore my jeep so it will start
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