I own a 1990 Jeep Cherokee, 4WD, 4.0 Litre, 6 Cyl.. A week ago I began experiencing a problem when starting the car. It turns and cranks but does not start for 15-20 seconds. It used to start instantly. Once it does start, if I turn it off and try it again immediately, it will start right away. If it sits a while, forget it, same problem.
Shortly after this issue, the car experienced a marked loss of power. Giving it gas had no effect. It drives and gradually will build power and speed, but if I try to accelerate I have to push the pedal to the floor and it kind of "nosedives" It's like it wants to go but it can't?
$$$$$$ later this is the list of items my mechanic changed on the car: Air filter
, pressure regulator, fuel filter, idle air control valve, fuel lines cleaned out, new spark plugs, timing chain guide (he said a guide was off so they fixed that and adjusted the timing) He said the timing chain was okay.
They did NOT change cap and rotor OR fuel pump
. Drove it home and all problems remain? My mechanic said bring it back to him. Can you help?