Finally on the road!

[Jaysin]

I finally got the Monte on the road. I have to thank all that have helped me out getting this thing done. It was looking pretty grim there for a bit. I still have a few problems though. I think I have them figured out I just want a second opinion for peace of mind. Here it goes...

With the car running and in park, when I rev the engine all is well. However, when I get it out on the road it seems like it don't want to accelerate. My minivan can get to 70mph faster. I have identified a vacuum leak from where the UIM and LIM meet up. Will this affect acceleration? There is also a rattling noise from the catalytic converter area. I have checked the heat shields and they are tight. I suspect it may be clogged up but dont want to go buy a backpress gage and remove the hated O2 sensor. Is there any other way to check? I may just pull it and gut it. If it runs better then I will get a high flow cat. Thanx for any info!!

[SappySE107]

RE: Finally on the road!

a vacuum leak can throw your fueling off, and the clogged cat will just kill performance as well. GUtting the cat makes it sound like ass (tornado under the car).

[Jaysin]

Thamx for reply. I will take care of the vacuum leak this week. I will hold on the cat thing until then. Gutting it would only be a test. I guess I could just disconnect the pipe and drive it down the road once to see the difference. I just hope vacuum will fix it all the way! Thanx agian.

[Jaysin]

At the risk of sounding like a complete dumbass I will tell you all what I did to this engine to make it run so crappy... Ready??

I put the f**king MAF sensor in backwards... How sad!! After all the work I did the last part I installed caused me so much crap. And to make it worse I didn't even find it that way. I had one of the guys I work with come out to the parking lot to set his eyes on the problem. He found it in like 2 minutes.

What I had belived to be a vacuum leak from the UIM turned out to be the power steering pump. My buddy said he thinks it's an internal relief while the pump is doing no work. I still think there is a leak but I'm not sure where it's from. I am going to replace some of the rubber hoses this weekend and see if that halps any. I will also try the carb cleaner route.

The rattling I thought was coming from the catalytic converter is gone at idle. I can hear almost the same sound during acceleration though. It makes an awful rattle at @ 4000 rpm during acceleration from a stop. I think maybe the connection from the exhaust pipe to the rear manifold may be wore out.

Almost There!!!