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My newest addition 88F150 XL 4x4 302 has a small issue the air pump was disconected when I purchased it.
When I reconected it it was noisy but still pumped a lot of air
truck is booked in for sniff in the morning does anyone think
it could fail due to conamiation from a bad bairing? . I have another
air pump but top bolt is being a bit of a BITCH to get of my
parts truck.Any input would help. THX
I'm not entirely sure, but if the check valve behind the two heads is ok, there shouldn't be any serious contaminations that could fail your emissions test.