Before you go any further check the spark plug gaps ,,,should be 25th if excessive this will cause the problem you describe
SOURCE: 1997 Mercury Mountaineer
if the engine is a 4.6L the pcv will be on top and in middle of pass side valve cover.pull to remove.
if the engine is a 4.0L the pcv is located at the rear(firewall) of drivers side valve cover.this pcv has lock tabs holding it in,turn then pull to remove,the lock tabs are part of the valve cover so take care when removing not to harm tabs.
SOURCE: 1997 chevy 2500 4x4 stumbles
Fuel pump is most likely the cause. Probably just barely making the required pressure to start. Needs to maintain 60-66 psi while cranking to start.
SOURCE: 1997 Mercury Mountaineer What is Catalyst Efficiency Below (Bank
it means the catalyst is worn out, the efficiency is monitored by sensors, when the Cat falls below a certain reading or "threshold" the code is generating telling u that u need a new catalytic converter.
SOURCE: I need a diagram of the firing order for a 1997 montaineer
For the 1997 Mercury Mountaineer V8 5.0L Engine:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
.......(back)......
|..4..|........|..8..|
|..3..|........|..7..|
|..2..|........|..6..|
|..1..|........|..5..|
.......(front)
Ignition Coil Connections:
(back)........(back)
|.4..7.|........|.3..5.|
|.8..2.|........|.6..1.|
(front)........(front)
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!
53 views
Usually answered in minutes!
×