TBI part blistered (is this normal)

[sponsoredbydad]

Found this and was just wondering if I have or had an issue or is it no big deal. My old 87 burb was like this too. I'm gona add that it is running good regardless.

 

[snowdriver]

I don't think mine look like that,been awhile since I have had the air cleaner lid off,may go out and look sometime today

 

[Bent77]

Never seen that. The fact you have had others makes me wonder if a cleaner that was used caused it or something in the fuel common to both?

 

[1-ton]

That is not normal. It looks like somebody sprayed a bunch of carb cleaner, or starting fluid into it. or possibly it back-fired at one time out the TBI and caught fire. This is what a good condition TBI injector connector is supposed to look like. Although this is an updated aftermarket version with the rubber injector insulator.

 

[muddermilitia]

^^^ that's just upside down. The factory one has that rubber part too. And to the OP, I've never seen one like that. I've had 3 TBI equipped trucks. I would go with the carb cleaner or starting fluid theory

 

[Greg Ducato]

None of mine looked like that, maybe need to put a little compound w in the tank to keep those warts at bay...

 

[sponsoredbydad]

OK cool! Then I won't be worrying

 

[mtnman]

Looks to me like someone had a fire in the throttle body at some point.

 

[sponsoredbydad]

Backfires maybe? Anybody think I should be replacing them?

 

[yellowK20]

Backfires maybe? Anybody think I should be replacing them?

Yep , backfire will do that

 

[wallerus]

If it aint broke.......

 

[muddermilitia]

If it aint broke.......

Upgrade it till the point it isn't streetable anymore. This is the CK5 way

 

[wallerus]