A code P0400 on a Geo Tracker indicates an issue with the Exhaust Gas Recirculation (EGR) system, typically related to flow problems. To fix this, start by inspecting the EGR valve for blockages or damage, and clean or replace it if necessary. Check the EGR passages and vacuum lines for any obstructions or leaks, and ensure the EGR control solenoid is functioning properly. After addressing these components, clear the code and test drive the vehicle to see if the issue persists.
well on my 2000 Chevy tracker it is an egr flow malfunction. Girl at autozone said it could be a egr blockage.... Mike
code 22 needs (engine coolant temperature sensor replaced) don't know about the 25
You replace it you do not fix it.
The recommended compression for a Geo Tracker engine is typically around 170-190 psi for each cylinder. This will ensure proper engine performance and combustion. It's important to check compression as part of regular maintenance to catch any issues early.
You don't fix it, you replace it.
kick it. that should help
Locked meaning blown?,no quick fix.
replace the exhaust.gmjim
That depends on what it is doing or not doing.
You have to take it apart to determine what is wrong before you can fix anything.
Fix the part that is setting the code in the first place.