air pump on 94 LT-1

[tabahr]

Has anyone ever rebuilt their air pump on an LT-1?? My fuse for mine keeps blowing, and I bet if I took it apart, cleaned it up and lubed it well it would be fine. I know there is a TSB on this problem saying to put in a heavier wire and a 25A fuse... But it didn't do this in the past... what changed??

[wolfdogs]

i believe the TSB only applied to 96 and 97's. if my memory serves me right...........

[Jeff_in_Atl]

Recall notice is number 99083.
1995 Camaro Vin S2100001 to S2229521
1995 Firebird Vin S2200001 S2256723
1996 Camaro Vin T2100001 T2166869
1996 Firebird Vin T2200001 T2232760
1997 Camaro Vin V2100002 V2160181
1997 Firebird Vin V2200001 V2232666
Dealer will replace air pump with new one.(Old unit causes malfunction
indicator
light to come on because of corrosion of the internal solenoid).Could this
explain why air pump fuses are blowing or some other electrical problems like
low voltage at over extreme electrical use (headlights on, brake lights on,
whipers on, A/C on, radio-CD player on, all at the same time).
General Motors has decided to conduct a Voluntary Emission Campaign involving
all 1995 1996 1997 camaros and firebirds with the 5.7L engines. The Air
Injection Reactor (A.I.R) pump emmision control system on these vehicles may
fail to operate and cause the Malfunction Indicator Lamp to illuminate. This
condition maybe due to corrosion of a solenoid internal to the A.I.R. pump.

Your Chevrolet Dealer will install a
new A.I.R. pump assembly kit that is designed to protect
the A.I.R. pump system from failing
due to internal corrosion. This service will be performed
FREE OF CHARGE.

Contact your Chevrolet dealer as soon as possible to arrange a date to assure
parts
availability. Instructions have been sent to your dealer. Please ask your dealer
if you wish to know how much time will be needed to schedule, process, and
repair your vehicle.

Should your dealer be unable to schedule a service date within reasonable time,
please contact the chevrolet customer assistance center at 1-800-222-1020.

If you have already paid for some or all of the cost to have your A.I.R. pump
repaired you should contact your dealer to seek reimbursement. Please provide
the dealer with your original paid receipts or invoices verifying the repair,
the amount charged, proof of payment, the date of payment of those charges and
proof of ownership of the vehicle at the time of the repair by October 31,2001.
Only
repairs performed prior to the release of this recall(October,2000) are eligible
for
reimbursement.

We are sorry to cause you this
inconvenience however we have taken this action in the
intrest of your continued satisfaction
with our product.

[Jeff_in_Atl]

I took mine apart before they replaced it. It wasn't corrosion or rust. The front bearing did not have a seal on it and the electric motor dust got into it which made it stop spinning. The bearing is pressed onto the shaft. The bearing probably cost less than $10 but you need an arbor press to get it off and to put a new one on.

[tabahr]

mine is a 94... does this apply for mine??

[Black97]

mine is a 94... does this apply for mine??

I guess you can see whether your FB has any recalls here:

http://www.alldata.com/TSB/yr.html

[tabahr]

99083 is not listed for 94

[Jeff_in_Atl]

No it is not but according to the parts list the 94 and the 95 pump are the same part number 12554580. If there is a recall on the 95 pump, it should also apply to the 94 since it is the exact same pump. It's worth a try.

[Injuneer]

The cure....

Pull the harness connector off the AIR pump, and leave it off.

Replace the fuse with a good one.

On 93-95 OBD-I cars, this will prevent the PCM from setting a code for a "missing" AIR pump. For 96/97 this will not work... you will get a code and SES light, because there are flow detectors.

AIR only runs for about 3 minutes at startup to help the cats heat up faster. Dyno type emissions tests do not typically test from cold start, so removing the pump will not affect emissions testing. It will however, increase emissions during cold start, to let your conscience be your guide. Some people have speculated that lack of the AIR pump will hasten the demise of the cats, but I have seen no proof of this.

If you want to restore it, try taking it apart. I have an old pump that I will send you for the cost of shipping if you are interested. It was still healthy when I removed it from my 94 about a year ago.