Bogs down at 45mph

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Bogs down at 45mph; Running bad
Topic Started: Oct 27 2009, 05:08 PM (140 Views)
dept411	Oct 27 2009, 05:08 PM Post #1
Metro on the brain Posts: 61 Group: Members Member #1,350 Joined: Oct 25, 2009 Location Shelbyville,Tn Year/Make/Model 91 Metro Lsi	My geo is bogging down at around 45mph. Anyone have any ideas what it could be?



Johnny Mullet	Oct 27 2009, 07:25 PM Post #2
"Geo Whisperer" Posts: 5,819 Group: Admins Member #1 Joined: Sep 7, 2008 Location Ashtabula, Ohio Year/Make/Model 97 & 98 Metro	If your car is low on power, there is one important test to do. Rent or borrow a compression tester and test all cylinders. Report back with those readings and we will go from there before you start throwing parts at it.



mwebb	Oct 27 2009, 09:42 PM Post #3
Posts: 1,595 Group: Tech Certified Member #848 Joined: Jun 8, 2009 Location the peoples republic of new york Year/Make/Model 1996 geo metro 1.o 5sp tbi no ac 2dhb the only option is the cupholders	dept411 Oct 27 2009, 05:08 PM My geo is bogging down at around 45mph. Anyone have any ideas what it could be? yes , i have lots of ideas . but no silver bullets to slay your vampire . how about a little history ? some test results ? something to work with ? yes compression testing is a good place to begin



dept411	Oct 27 2009, 10:18 PM Post #4
Metro on the brain Posts: 61 Group: Members Member #1,350 Joined: Oct 25, 2009 Location Shelbyville,Tn Year/Make/Model 91 Metro Lsi	Ok I will try and find a tester and to get some readings. Then check back. Thanks Edited by dept411, Oct 27 2009, 10:18 PM.



Cobb	Oct 28 2009, 09:17 AM Post #5
Posts: 1,445 Group: Valued Members Member #454 Joined: Feb 9, 2009 Location richmond, va Year/Make/Model 99 chevy metro hatch back	So, does it power back up past 45 or 55? Mines use to do that, I sometimes had to use 4th gear to maintain 55 on slight grades. I got a temp fix by getting the 3tech 10 degree cam gear, but I need a rebuild of my engine.



dept411	Nov 7 2009, 05:11 PM Post #6
Metro on the brain Posts: 61 Group: Members Member #1,350 Joined: Oct 25, 2009 Location Shelbyville,Tn Year/Make/Model 91 Metro Lsi	Sorry guys I've been gone for awhile on my job and haven't had a chance to look at it much. The fortunate thing is my dad filled the car up with 98 octane and drove it while I was gone. So far its not been doing ok. I took a compression test today any way and came up with 120-120-135. Thanks.



Bad Bent	Nov 7 2009, 09:55 PM Post #7
Facetious Educated Donkey Posts: 4,232 Group: Moderator Member #334 Joined: Dec 26, 2008 Location Native of SoCal, existing in McCall, Idaho Year/Make/Model 1991 and 1996 Geo Metros	Not good as you may already know. Did you follow the Ryan guide: Compression test. A Seafoam treatment wouldn't hurt.



Johnny Mullet	Nov 7 2009, 09:58 PM Post #8
"Geo Whisperer" Posts: 5,819 Group: Admins Member #1 Joined: Sep 7, 2008 Location Ashtabula, Ohio Year/Make/Model 97 & 98 Metro	dept411 Nov 7 2009, 05:11 PM I took a compression test today any way and came up with 120-120-135. Thanks. Those numbers are below the factory minimum of 156 PSI. It will run for awhile with low numbers, but not very well and eventually will need a rebuild.



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