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1994 jeep, has a very underpowered start, (turns slowly, then clicks, turns slow again, and sometimes catches) if it starts, (when pushed) it ran with no idle, foot on the gas only, ''fixed:'' idle problem temp until I can find main problem, also battery wont charge off alternator, changed starter and alternator and battery, no trouble codes any guesses
It sounds like you may have a bad connection somewhere. Start with your battery cables and then look at all of your ground wires as well. When you try to start your jeep see if the wires from the battery get hot.
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Install a new crank shaft sensor. I had the same problem with my wife's Jeep. It would run fine fore days at a time then quit. When the crank sensor goes out their is no spark or injection of fuel into the engine. This is a Hall Sensor. They can be intermittent, and affected bu heat. If your Jeep will not start, try freeing the sensor and see if it starts. Cold Freeze is used in electronics to test
Yah sure check the fuel pressure on the manifold, ur belt tension and altenator. But a very common problem with jeeps is the crankshaft positioning sensor. Check and make sure ur gettin fire. If ur not could also b the ignition control module in the distribitor.
It sounds like you do have a relay problem try switching relays around that have the same part number start with the starter relay when switching the make sure the key is off each time
I have had this happen with the Jeep 4.0 motors because the rubber hoses going to the metal intake from the valve covers had cracks or were broken. Its been a while sine I've been under the hood of a 4.0 but that is a good place to start.
When car wont start and turn over slowly there are two possible problems, its either the battery or the a bad starter, however if it turns over faster than normal then the possible problem is a broken timing belt or lack of compression.
Is starter engaging but is turning the engine slowly then not turning engine? (that's what I'm reading) If so, check both connections at the block and starter. If reading proper voltage 12v or better, check voltage across battery when in "start" if it drops below 9.5v the starter has failed. (you can turn the engine by hand...correct?)
It sounds like your alternator may be going bad, even if you have it tested it may say it is still good but the regulators in those wont show if it is bad
Check the fluid level of the transmission.The model number in your vehicle is the A500,also designated the 42RE.With this trans,the fluid level is checked with the trans in Neutral,and the parking brake set,with the vehicle on level ground.If it is low on fluid,then there is a leak that must be located,and repaired.
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