Will a 1988 gmc 5.7 liter run without a catalytic converter

Asked by RockinBillyP Dec 12, 2018 at 08:39 PM about the 1988 GMC Sierra 1500 C1500 Standard Cab SB

Question type: Maintenance & Repair

Can a catalytic converter on 1988 gmc 5.7
liter 1500 sierra truck be taken off and still
run correctly?

1 Answer

F_O_R answered 5 years ago

It will run but it may run too rich or too lean.

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