87 SB TBI question... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ponjohn · 12-23-2004, 02:58 PM

Hello All- Happy Holidays.

I went to look at an 87 K30, 4x4 5.7 TBI, auto, utility body for my business. Guy said make an offer...here is the question.

I started right up and idles but seems to idle real rough (alost as if it had a miss), owner said a mechanic said that there are multiple sensors on this engine and it would costly to change them, being th first year of TBI do you think this would a costly repair (knowing as little as I do about the problem)? BTW- this is a crate motor that has about 80k on it.

I have an 85 dually that is carburated so without buying a manual I thought i would ask here first.

Thanks-
john

12-23-2004, 02:58 PM	#1
ponjohn Registered User Join Date: May 2002 Location: woodbridge, ct. usa Posts: 145	87 SB TBI question... Hello All- Happy Holidays. I went to look at an 87 K30, 4x4 5.7 TBI, auto, utility body for my business. Guy said make an offer...here is the question. I started right up and idles but seems to idle real rough (alost as if it had a miss), owner said a mechanic said that there are multiple sensors on this engine and it would costly to change them, being th first year of TBI do you think this would a costly repair (knowing as little as I do about the problem)? BTW- this is a crate motor that has about 80k on it. I have an 85 dually that is carburated so without buying a manual I thought i would ask here first. Thanks- john



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