Yeah, I'm glad I got the fire out within about 10 seconds of the explosion. Otherwise, I may not have been able to repair all the fire damage! (which mine had only two wires burned)

00Beast wrote:I would venture to guess all L36's of that era, since it's the same motor across all lines except the supercharged versions.

I would guess the same.

Well, I got it started this morning. After replacing the upper intake, fuel rail, fuel pressure regulator, and a couple injector washers, it started up. Ran rough for about three minutes, but I think some of the fire extinguisher powder may have gotten in there, because it ran progressively better ...

$2500 straight up.

Not sure which actually. But the fuel rail was bent out of shape after the explosion, so i had to do a lot of bending to get it back to where it appeared to fit on the injectors.

GM isn't going to fix it, but IS going to give me $2500 for the value of the car. I just put it back together with a new intake plennum and fuel pressure regulator, started it, but it ran rough. Turned it off, and my fuel rail is leaking at one of the injectors, so now I need to try a different fuel ...

WOW thanks for the recall link! That's exactly what happened!

was hoping to update tonight, but parts store gave me wrong fuel pressure regulator. Got new UIM though, and plan on having it back together tomorrow night. Will post tomorrow night with good news hopefully!

Here they are:

Yeah its for my '98. Sorry I posted this in the wrong section.. As far as the fire extinguisher, it was a dry chemical, but I only shot it for a second. Still gonna be a clean-up though!!

OH, also... I sprayed fire extinguisher also to put out flames. Do I need to do any extra cleaning for that too?

I called O'Reilly where I bought my UIM, and they said to bring in all the pieces and they'll swap out a new one for me. Good news, but just the beginning...

Ugh, yeah, there is/was a recall for faulty FPR's on 97-99 or so L36 models. Diaphragm inside FPR ruptures, fuel gets sucked into UIM, and kablammo.

Hopefully the UIM's tall plastic runners kept fragments from going down into the LIM runners. Carefully inspect the MAP sensor, and the TB and all it ...

Yeah, mine doesn't look quite as bad as Zuper's pic, but similar. I will definitely make sure to clean out any fragments and pieces of plastic from my plennum. My plennum's under lifetime warranty since I replaced it two years ago, so I'm going to give it a shot and keep my fingers crossed that ...

Wow, yeah, I'm lucky it didn't happen while I was driving! So, does that mean I should replace the fuel pressure regulator also?

When i went to start my car this morning, my upper intake exploded! I turned my key like normal to start the car. The engine turned for a second, and then BOOOM! It was like a backfire, but blew up my intake. Anyone know what would cause this? I really appreciate any suggestions, thanks!

I found two BCMs in a box in my basement. (blower control module). Also have three BCMs (body control modules).

Oh, I'd just have you pay for postage and whatever the junkyard charges me. I'd feel bad chargin you more for the part. I don't mind helping a person out. I can't remember how much they cost, but very little I'm sure.

no rust. and the gas cap feels like its sealing really well.

okay, guy at auto zone said P0442 came up. he said probably gas cap. I filled my tank, screwed gas cap about 5-6 clicks, and check engine light still on. only drove it about a mile though.