1995 and before are different than 1996 and later.
Also, some exhaust manifolds have two oxygen sensors .
At 80 degrees air temp expect low side in the 20-40 range and high side 200-300
On metric gauge 2.5 to 3 bar, about 40 to 45 psi. At least 15 psi, 25 psi would be better, 40 psi on a good engine.
Try spraying them with WD-40 and let iot sit on there for a while. If that does not work try a 4 way lug wrench .
the 4.0 six in a 90 jeep Cherokee is not a v6 it is an inline 6. the firing order is 153624
Try spraying some WD-40 on it. PB Blaster works great also, Mike
Depends on your skills as a mechanic, your tools, and the problem. Some of them you have to Chad in all honesty NO. well you can if you want to pay an extra 40% any private shop can work on a jeep Cherokee
.35 to .40
10w/40
193 miles taking this route:Take U.S. 19 NORTH from Cherokee to I-40 EAST to ASHEVILLE.Take I-40 EAST to I-77 SOUTH to CHARLOTTE at EXIT 152A in Statesville.Take I-77 SOUTH to CHARLOTTE.
The engine computer is the voltage regulator.
This is not advised. Use 10w30.
CASTROL 10W/40
260 miles taking this route:Follow U.S. 441 NORTH from Cherokee to I-40 in Sevierville, TENNESSEE. Follow signs. (FYI, Sevierville is north of Pigeon Forge and Gatlinburg.)Once you are at JCT I-40, follow signs to I-40 WEST to KNOXVILLE; take I-40 WEST to Nashville via I-640 WEST (EXIT 393 off I-40) to bypass Knoxville.
Should be between 20 and 40 psi at idle
The exact cost to repair a blown head gasket on a Jeep Cherokee varies. It should run between 20 and 40 dollars.
40 psi plus or minus 540 psi plus or minus 5
A full operating temperature it will be around 40 psi.