Sign In Join 



Chevrolet/Geo Metro

1692 messages,  Last post on Oct 24, 2009 at 5:27 PM

You are in the Chevrolet Metro/Geo Metro Forum. Your Host is pf_flyer

What is this discussion about? Geo Metro, Chevrolet Metro, Hatchback


Messages Page 102 of 170
1
...
99
100
101
102
103
104
105
...
170
Prev
Next
Last
Go To Msg #
Search This Discussion

#1009 of 1692
hesitant.... by vanillalatte
Oct 31, 2006 (3:13 pm)
Reply
Could be a number of things: spark (did you change the plugs recently?), catalyzer could be plugged up...
#1010 of 1692
Re: 94 Metro [pipeman] by magicpsn
Nov 02, 2006 (10:55 am)
Reply

Replying to: pipeman (Oct 31, 2006 7:27 am)

Pipeman -
 
Thanks for the ideas and recommendations, I'll have to check the compression when I get a chance and take it from there.
 
Thanks again!!
#1011 of 1692
Re: hesitant.... [vanillalatte] by pipeman
Nov 03, 2006 (4:11 am)
Reply

Replying to: vanillalatte (Oct 31, 2006 3:13 pm)

Hello. Personally, I belive the catalyst only work on cold start ups. After engine is in normal operating temp. cat. converter is unnessesery item..
What I did - remove the Catal. Converter, cut of the front pipe and I cleaned the converter inside. Removed all "honey nest". Installed back and never have any problem. My OX. sensor work better, no more back pressure, better mpg.
Passed emission - easy. Just do not mention about that.
Pipeman
#1012 of 1692
Cat out! by vanillalatte
Nov 03, 2006 (4:18 am)
Reply
Well.....it's not legal really, we are well aware of that. BUT you get better gas mileage, thus you are more efficient, therefore you pollute less......
#1013 of 1692
Re: Catalist by pipeman
Nov 03, 2006 (4:50 am)
Reply

Replying to: vanillalatte (Nov 03, 2006 4:18 am)

THis is only suggestion - I idi for on reasen - save a money on new cata. converter and also improove mpg.
Didn't damage the World.
#1014 of 1692
Re: 94 Metro [pipeman] by geometro91
Nov 05, 2006 (11:18 am)
Reply

Replying to: pipeman (Oct 31, 2006 7:27 am)

I have a 1991 Geo Metro 2 door hatchback that I'm fixing up for a commuter. I've already done considerable work to the car. I've heard about the problems with the EGR. In addition to replacing or cleaning out the EGR do I need to pull the intake and/or exhaust manifolds and clean out the passages? If so, how do I determine where those passages are? My shop manual isn't very clear on this.
 
Thanks
 
GeoMetro91
#1015 of 1692
Re: 94 Metro [geometro91] by pipeman
Nov 05, 2006 (4:21 pm)
Reply

Replying to: geometro91 (Nov 05, 2006 11:18 am)

First - remove the EGR valve and clean the egr valve. Next clean the connection from EGR to carburator. I used the pipe cleaner - you can purchase at any tobacco shop. Use the "sharp" not a soft cleaner. You can buy the short and long pieces. It is very cheap $ 1.00, 2.00.
Second. Remove the exhaust manifold. After the exhaust manifold is out - clean very well the opening ( 1/2" dia.) accross the cyl.head. From the exhaust to the egr.
Look at the exhuast minifold and you will see small hole running between the "exhaust collectors" 1 - 2 -3.
The opening is less than 1/8" dia. Use the transmission fluis to clean the passages. Put the one site of the pipe cleaner to the transm. fliud and insert in every small hole. Must go thru. If is plugged, put more transm. fliud in the openong in leave for 15 min. and try push thru. If will not open the hole, use some sharp wire and push. By gental to nor brake the wire. Also you can use high pressure air to clean the passages.
Replace all bolts with studs. Easy to work. Use grade 9 or 10 studs. Open the ehaust manifold inlets abut 45 degree angle , the flow will be easier. Before instaling the studs, retap the thread in the cyl. head with greas.
Use copper grease to install the studs in the cyl. head.
Any questions, let me know.
Pipeman - visit my web www.bacartpipes.com
#1016 of 1692
Re: 94 Metro [pipeman] by geometro91
Nov 06, 2006 (12:24 pm)
Reply

Replying to: pipeman (Nov 05, 2006 4:21 pm)

Thanks for the info. We are talking about a 91 geo metro, right?
No sure what you mean by opening up the inlets on the exhaust manifold. Are you talking about taking a die grinder to the manifold itself? If so how far back should the 45 degree bevel go?
 
Thanks,
 
geometro91
#1017 of 1692
Re: 94 Metro [geometro91] by
Nov 07, 2006 (3:11 am)
Reply

Replying to: geometro91 (Nov 06, 2006 12:24 pm)

Yes - 45 degree angle. Firts - place the gasket and se how is alingement with the manifold.
Also you can do 45 on cyl. head.
How about those small holes in the EGR , you located that?
If yo will look inside the exh. ports you will see small "pipe" on the bottom of the runners.
Let me know.
#1018 of 1692
Re: 1994 metro [m564ag] by randydriver
Nov 13, 2006 (9:15 pm)
Reply

Replying to: m564ag (Oct 30, 2006 5:08 am)

Could be the oxygen sensor....it cause my mileage in my old Suzuki Swift to fall from 36-39 down to 24. I was told that is the sign of an sensor going out is sudden bad mileage. I had it fixed and boom my mileage went back up.

Messages Page 102 of 170
1
...
99
100
101
102
103
104
105
...
170
Prev
Next
Last
Go To Msg #
Search This Discussion
To POST a message, please Sign In.

New? Join Now!

Forum Tools

Please sign in.
Email Address:

Password:

Forgot Password?

Search Forums

Enter Keyword(s)

Advanced Search

Browse by Vehicle



View All Vehicles
Advertisement
Ask the Community
See What People Are Asking

Browse by Board

Browse by Topic


View All Topics

Today's Chats

Advertisement