Problem with the throttle body on 1995 Chevrolet S10

I had a natural gas conversion kit put on the truck a few years ago,now it has a loud ticking noise coming from the throttle body.i put my hands on the fuel injection sileniods and it seems to be coming from them but im not sure,when i change the switch to regular gas the knocking goes away.Is this normal?

by in Costa Mesa, CA on August 29, 2012
1 answer 4 comments
ANSWER by on August 30, 2012
seek an opinion from a natural gas mech poss suburban propane co. in placentia ca. it could be the gas is freezing up on you at exchanger
COMMENT by on August 31, 2012
They didnt have any info ,do you have any other ideas?No one has experience with these
COMMENT by on August 31, 2012
google propane and call some conversion places. sorry
COMMENT by on September 01, 2012
please leave a question open if you cant answer it,i probaly wont get an answer to a quetion thats already had a response.
COMMENT by on September 01, 2012
yes u can sorry i tried to help TTYL BYEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
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