brdhntr Posted April 28, 2009 Share Posted April 28, 2009 i'm fine driving around, starts and stops, no problem. when i sit at a stop sign, it idles ruff like it set to low. when i hit the gas hard, it takes off no problem, but bogs and starts to die right away. so it gets off the line hard, just bogs within a few seconds. it's an 87 2.5 with 95k miles. :dunno: so any ideas what's going on? Link to comment Share on other sites More sharing options...
Geonovast Posted April 28, 2009 Share Posted April 28, 2009 Clogged fuel filter is what I'd look at first. Link to comment Share on other sites More sharing options...
mvusse Posted April 28, 2009 Share Posted April 28, 2009 Or restriction in the exhaust, like a plugged cat. Link to comment Share on other sites More sharing options...
ratrapp Posted April 28, 2009 Share Posted April 28, 2009 mine was doing this a couple of months ago.i was leaving work and it would usually bog then it would eventually pick up and go but that day the fuel pump decided to finally die. Link to comment Share on other sites More sharing options...
dasbulliwagen Posted April 28, 2009 Share Posted April 28, 2009 O2 Sensor! My 87 2.5 was like that too. I did all the other stuff they said to no avail. Put an O2 sensor in, and within 60 seconds of statup it started running great and havent had a problem since. Though I would still do the fuel filter also. Changing the cat should be a last resort due to their price, but is also possible. Link to comment Share on other sites More sharing options...
mvusse Posted April 28, 2009 Share Posted April 28, 2009 Plugged cat is easy to diagnose by temporarily removing it. Don't run it like that at night, though, as you will wake up everyone withing half a mile or so. Link to comment Share on other sites More sharing options...
brdhntr Posted April 28, 2009 Author Share Posted April 28, 2009 i already did the fuel filter and new plugs. the problem is still there. i guess i'll look at the o2 sensor and cat. do you need a application specific o2 sensor on these or can you use a universal? Link to comment Share on other sites More sharing options...
project88mj Posted April 28, 2009 Share Posted April 28, 2009 stop hiting it so hard. what are you :nuts: Link to comment Share on other sites More sharing options...
jtdesigns Posted April 29, 2009 Share Posted April 29, 2009 My issue was the 90* rubber hose on the fuel pump popped off and wasn't getting 100% pressure. In other words pull a fuel pressure test. :smart: Link to comment Share on other sites More sharing options...
dasbulliwagen Posted April 29, 2009 Share Posted April 29, 2009 Oem 02 sensor from the dealer is like 40-50 bucks, get a specific app 02 sensor and you won't be disappointed. Link to comment Share on other sites More sharing options...
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