valve job or what?

Asked by Mar 09, 2014 at 02:44 PM about the 1999 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

no smoke but definite stink, engine runs smooth no problem starting, got 221k, 4.7, no mods, new plugs and oil....

2 Answers

116,425

I would try some fuel cleaner. Sea foam is what I use. Add it to a tank of gas as directed on the can. Also tho sometimes cat converters give off a weird smell right before they start to fail.

116,425

Sea foam will not help for a cat issue but it will clean the valves of any carbon build up.

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