92 ford bronco
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92 ford bronco
Hello everyone, I am new to the forum and cannot find an answer to my question. I have a 92 bronco that has a problem running in the cold weather. When it first starts it sounds as if it is running on 5 or 6 cylinders. As is warms up it will sound more like 7 and then finally it will smooth out. I have replaced the the egr valve recently. Does anyone have any suggestions on how to fix this? Also, I took a toothbrush and cleaned the throttle area.
Thanks for your help.
Bayouvol
Thanks for your help.
Bayouvol
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 13
From: Sand Lake, MI
Start by running the self test. Be sure an post which test an results are from IE; "KOEO" "CM".
If you get a "system pass" for both those then run the KOER test see if it returns anything, no need too yet if KOEO test returns issues, those would need corrected before moving on to KOER test.
Fuel Injection Technical Library » How To Run a Self-Test
When is the last time it got a full tune up, spark plugs, wires, cap, rotor and filters? If been a while or unknown start with that.
What does the exhaust look like when it runs bad and then after smooths out? Heavy/light black smoke? Heavy blue smoke? both?
Be a good idea to check the fuel pressure too while trouble shooting, if you don't own a gauge to test it with most auto parts will rent em.
If you get a "system pass" for both those then run the KOER test see if it returns anything, no need too yet if KOEO test returns issues, those would need corrected before moving on to KOER test.
Fuel Injection Technical Library » How To Run a Self-Test
When is the last time it got a full tune up, spark plugs, wires, cap, rotor and filters? If been a while or unknown start with that.
What does the exhaust look like when it runs bad and then after smooths out? Heavy/light black smoke? Heavy blue smoke? both?
Be a good idea to check the fuel pressure too while trouble shooting, if you don't own a gauge to test it with most auto parts will rent em.
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