Hello all,

I just got $300 in work done at the shop fixing up the 94 Bonneville I just bought from a couple of crooks, and am doing additional work I didn't want to pay for.

Anyway, while searching for the PCV valve cover, I noticed I have a open spot for a hose to connect to on the very top rear of the engine. This can't be good can it? The shop told me I needed to replace my EGR valve and said it would be another $340, but I've found one for $80 or so on Amazon.com that I'll order. This open connection wouldn't be related to that would it?

The only known major problem I'm having right now is my oil pressure appears to be dropping considerably low after everything heats up. I just changed the oil and used a thicker grade along with some oil stabilizer, and it helped but it'* still going down to just barely above the red. I replaced the PCV valve as well and am going to replace the oil pressure switch tomorrow if I can locate it. I'll probably have to get back under the car and hopefully not redrain my oil.


I'll have to find the whole list of what the shop did, but it involved fixing a lot of SES codes. I know the camshaft was replaced along with a couple of other sensors of some kind. I'll get the invoice tomorrow and post the complete list and a picture of where the open connection is.

Anyone know where I can get a good reasonably priced repair manual for this thing?

Thanks in advance for all help.

Changing the EGR yourself is easy. That price is out of hand. Take a picture of the open vacuum line, that will help. Go on Ebay and find a factory service manual (FSM) for your car and year. No better manual around.

Found the manual for $20 at Autozone. Figured that was a reasonable enough price. The pic is attached to this post. Let me know what this is for. I suppose I could look in that manual I just bought... I'll start browsing.

Thanks for the help

Its is the fuel pressure relief valve it should just have a cap like your valve stems does on your tires. It lets your check your fuel psi with a proper fuel pressure kit and allows you to take of your fuel pressure out when you have to take off your fuel rail and lines for engine repairs. I hope this helps you out. If you have more questions just ask and someone here will lend you a hand.

1994 PONTIAC BONNEVILLE SHOP SERVICE MANUAL SET 2 VOL.:eBay Motors (item 200355871326 end time Jul-23-09 11:45:13 PDT)

awesome price for FSM'*

That'* your shradder valve

Thanks everyone. Looks like it is nothing to worry about. I already purchased a Haynes manual because I needed one right away, but I'm considering a FSM as well.

That is a great price on the FSM'*. I recently bought a set for almost $100.00 on Ebay. That is by far the lowest price that I have ever seen and when it comes to manuals newer is not necessarily better.

I gave in to temptation and ordered the linked to FSM. I'm sure it will be well worth it. The Haynes manual is good, but I just want more information and more diagrams and such. Hopefully between the two of them I can get the job(*) done.

Good Move!

You will find that there is no comparison with the FSM'*