Where Do These Bolts Go?

Kinda looks like either the fuel pressure sensor bolts which are 8mm
but if they are 13mm head then maybe the egr bolts

There are a lot that look very similar to that. Fuel rail, throttle body bracket, on and on...

If you put a socket on the bolt head and told us the size we can help narrow it down.

The bolts take a 10MM socket. I hope this will help in narrowing down their home location. Thanks so much for the input.I look forward to your responses.

Maybe the EGR solenoid or evap solenoid mounting bolts? Throttle bracket? I don't remember clearly but doesn't the 99 have DPFE mounting bolts? How about the IMRC mounts? I assume you would have noticed if they came from the IACV...

Thanks so much, will do.

mmc757 said:

Maybe the EGR solenoid or evap solenoid mounting bolts? Throttle bracket? I don't remember clearly but doesn't the 99 have DPFE mounting bolts? How about the IMRC mounts? I assume you would have noticed if they came from the IACV...

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EGR solenoid bolts are way smaller than those I think, and the DPFE and EVAP solenoid are all mounted on studs with nuts, and the IMRC bolts should be longer than that. They DO look like throttle bracket bolts though - but I would think it would be obvious if those were left out, and I think they are 8mm, not 10.

It also kinda looks like the bolt that retains the coolant crossover pipe.

Man, it's hard to tell.

I'll have to walk through my disassembly process and hopefully see where those bolts came from. Thanks for the suggestion.

Perhaps the bracket for the DPFE sensor. It's the black bracket in the 2nd image, between the header and blue clutch. There's a lot of lines running around there when installed so maybe you thought pulling that out would give you room but abandoned it. You can see in the image it's missing 2 bolts and IIRC they're 10mm ish.

What about the flat metal bracket that the air box snaps onto? Isn't that two bolts of similar size?

wadespencer99 said:

What about the flat metal bracket that the air box snaps onto? Isn't that two bolts of similar size?

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YES, you're absolutely correct

alex_dodge1977 said:

The bolts take a 10MM socket. I hope this will help in narrowing down their home location.

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This might be the most unintentionally hilarious comment ever posted on this site. Half the bolts on this car are 10 mm. I once joked that the official greeting for Cougar owners should be holding up a 10 mm wrench, and @wadespencer99 actually did it rolling into CougarFest one time - he held up a 10 mm wrench through his moonroof as he pulled into the parking lot. At least I'm pretty sure it was him.

skater said:

This might be the most unintentionally hilarious comment ever posted on this site. Half the bolts on this car are 10 mm. I once joked that the official greeting for Cougar owners should be holding up a 10 mm wrench, and @wadespencer99 actually did it rolling into CougarFest one time - he held up a 10 mm wrench through his moonroof as he pulled into the parking lot. At least I'm pretty sure it was him.

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Ha! I had completely forgotten about that, but yes I did! I think it was Harrisburg maybe?

Going to sound really dumb, but did you put the plastic trim piece that says "Duratec" back on yet?

Good day folks. The bolts held down the shift linkage bracket which i had removed to give me a little more wiggle room. Thanks so much for all your suggestions.

Dammit I was so close.