Question about 1993 Jeep Grand Cherokee

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1993 JEEP GRAND CHEROKEE LAREDO- TRUCK WONT

1993 JEEP GRAND CHEROKEE LAREDO- TRUCK WONT START CHECKED GOT FUEL IN RAIL SO I ELIMINATED FUEL PMP RELAY-------UPON FURTHER INSPECTION I DONT HAVE SPARK BUT I HAVE JUICE TO COIL AND ROTOR TURNS

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  • chris34thoma Mar 09, 2009

    i have the same problem and my father and a stupid mercanic is telling me it need a new motor

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OK...I have a 93 outside...one diagram I have shows an ignition module next to coil...but there is none on mine, (4.0 engine)
Two items to check are crank sensor and cam sensor inside distributor. Test procedure can be found in just about any manual including haynes.
You will need a decent volt/ohm meter to do testing. You can also check codes by turning ignition switch on/off three times, leaving it on the third time. Check engine will flash code #'s (ex: one flash, pause two flashes= the number twelve.then followed by a longer pause then another set of flashes etc.)

Posted on Mar 05, 2009

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3 Answers

2004 Jeep Grand Cherokee 4.0 wont go over 25 mph. There are no fault codes.


First eliminate the fuel flow, replace the fuel filter. It starts and runs, pump is OK. Then I would go back to the exhaust. Remove an O2 sensor before the catalytic converter. One is fine. It will be louder. If it runs better at picks up speed, then the cats are clogging up.

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I have a 1996 jeep grand Cherokee Laredo. it began to stall at idle and now will not start


Check audibly the fuel pump. It will run for 3 seconds when ignition is turned on, but engine not started. If it makes noise, you could check for pressue at the fuel rail. There is normally a schrader valve you can press. Tske care, fuel under pressure will come out when pump is ok.
if ok, check for eventual fault codes with scanner.
could be crank sensor.

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I have a 1993 Jeep Grand cherokee laredo with the 4.0 its starts for only a few seconds and dies changed the fuel pump and fuel filter and the sercurity light doesn't come on im stumped any help ?


Check the crankshaft position sensor, i have repaired 3 Jeeps (after the owner spent a lot of time and money replacing fuel pumps,TPS, and many other items) then got frustrated, brought it to me and within an hour it was running fine with a new CPS

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How to change fuel injectors in a 2000 jeep grand cherokee laredo 4.7L V-8


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2000 Jeep Grand cherokee Laredo wont start. Engine turn over . No noise from fuel pump with ignition on. Replaced fuel pump and filter.Turn ignition on- pump did not run.Jumped the fuel pump at the pump...


sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

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To fuel pump or not to fuel pump


if over 100,000 miles miles common.

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2 Answers

1993 JEEP GRAND CHEROKEE LAREDO IM TOTALLY BAFFLED


Back up a minute...Do you have spark from the coil wire? (juice from coil) If so, change or check rotor and cap (wires do not all go bad at same time so unless they are wet, likely at least good enough to start engine)

Mar 05, 2009 | 1993 Jeep Grand Cherokee

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