Wagoneer L4-150 2.5L VIN E TBI (1990)
4.
Using an oxyacetylene torch or a hacksaw, cut the catalyst outlet pipe just in front of the muffler inlet pipe. Remove the remaining piece of
the catalyst pipe from the muffler.
5.
Remove and discard the nuts, bolts and gasket from the front of the catalyst and remove the catalyst.
6.
Using the provided gasket, nuts and bolts, attach the new catalyst to the front exhaust pipe.
7.
Connect the catalyst outlet pipe to the muffler.
8.
Install and tighten the new exhaust pipe clamp, at the muffler to catalyst connection, to 42 ft. lbs. (57 Nm).
9.
Tighten the catalyst to front exhaust pipe bolts to 25 ft. lbs (34 Nm).
10.
Tighten the rear tailpipe hanger.
B.
Install the Recall Completion Label
1.
With a ball point pen, print your dealer code (5 digits) on the supplied Recall Completion Label.
2.
Peel the label from its backing and apply it near the Vehicle Emission Control Information Label located on the underside of the hood.
C.
Complete Proof of Correction Form
1.
Complete a Vehicle Emission Recall Proof of Correction Form and supply it to the vehicle owner.
Owner Letter
EMISSIONS RECALL --
1990 JEEP CHEROKEE, COMANCHE, AND WRANGLER WITH A 2.5 LITER ENGINE
Dear Jeep Vehicle Owner:
It has been determined that the catalytic converter on your 1990 Jeep vehicle with a 2.5 liter engine may be susceptible to failure. Failure of the converter
may cause your vehicle to be in violation of California Emissions Standards. Hydrocarbon, carbon monoxide, and oxides of nitrogen levels could be
above the allowable limits, which were established to protect the public health from the dangers of air pollution. For this reason, we are asking you to
return your vehicle identified by the Vehicle Identification Number on the enclosed form --- to your dealer for a special service repair. This service will
be provided free of charge.
IT IS IMPORTANT THAT YOU HAVE THIS RECALL REPAIR PERFORMED. For this reason we request that you consider the following
information and then have your vehicle repaired.
Why should I have my vehicle repaired? _ _
Failure of the catalytic converter may cause your vehicle to exceed the California Emissions Standard for hydrocarbons (HC), carbon monoxide (CO),
and oxides of nitrogen. HO emissions consist of unburned fuel that is released into the atmosphere. HG in combination with oxides of nitrogen in the
presence of sunlight, can cause the formation of ozone. Carbon monoxide emissions are formed by the incomplete combustion of fuel. These pollutants
are the primary components of smog.
The State of California is in the process of developing a program that will soon require the completion of emission recall repairs prior to vehicle
registration renewal. Depending on the actual implementation date of this program, your vehicle may be subject to these requirements.
In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without
the free service we are providing, your vehicle may be more likely to fail this test and require that you make costly repairs.
Further, in order to ensure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as soon as
possible. Failure to do so could be determined as lack of proper maintenance of your vehicle.
What will the dealer do to my vehicle?
At no charge to you, the dealer will replace the catalytic converter.
How long will it take?
The service will take about one hour but additional time may be required depending on how service work is scheduled and processed.
How will this repair affect my vehicle's engine performance and fuel economy? The repair will not hurt your engine performance or fuel economy.
