Question about 1993 Jeep Grand Cherokee

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My rpm's drop below 1 when i get up to 70 and the engine looses power 1993 jeep grand cherokee

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Check fuel pressure, change filter if delivery is low, change pump if pressure is not right after filter change. There could be more problems but that is where to look first.

Posted on Jun 26, 2009

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1993 Laredo. Does it have two fuel filters?


are you on wrong forum, Grand cherokee is it?
the XJ jeep is not a ZJ jeep. which is it, the big GRAND ZJ?
what a great question, actually cars with EFI all have 3 filters...
sorry to shock you.

1: the fuel sock , below the pump , to catch loose golf balls. LOL.
dead bugs, etc.
2: the pump output line has a filter., all do, can be in tank (newer cars) or just outside (did you look first or post first) bingo!
3: then each injector has 10 micron size screens. the above keeps these clean, saving $120 for injector service and labor R&R.

and what engine, not posted engine size on engine questions
the fuel system matches ENGINE type, on all cars made.
4.0L engine ????

ive owned both a grand laredo and not grand laredo 1988 to 2010

if not grand see this XJ car.
called just a Cherokee here. 1993
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service


the grand is called a ZJ
also on same page and both are LAREDO's

the book has a fuel chapter.
read that. for free.

Dec 08, 2015 | Jeep Cherokee Cars & Trucks

2 Answers

My grang cherokee2002 us spec, while driving trnz changes fine but when cick down or full excelrate and RPM reaches 4.5 or 5 engine is loosing power and getting noisy and RPM not going more, while gear on...


You are hitting the rev limiter top range, which cuts off your ignition.

I have a 2001 Grand Cherokee and the problem drives me crazy, but it is the way the car is designed- as soon as you hit the rev limit, it shuts down ignition and your jeep will "buck" - a real pain when you are trying to accelerate into traffic!

You have the 4.0L straight six engine, yes?

If so, please take my advice and learn to live with the minor annoyance of the rev limiter- that engine is IMHO the best Chrysler ever made (nearly "bulletproof"!) and it was so reliable you cannot even get it in a jeep now! For decades, that engine was used in welders, tractors, generators...and yes, jeeps... and it is a favorite among mechanics for its durability!

Feb 01, 2011 | 2002 Jeep Grand Cherokee

1 Answer

The rpm of my 93' jeep grand cherokee,changes from 2,000 to 3,000 rpm,when i'm driving at 70 mph, it does this 3 or 4 times in a minute some times it doesn't do it ' i've changed the tps and it still does...


have u run a fault code test on the systems computer, this sounds like maybe a Vehicle speed sensor problem, the speed sensor is on the side of the transmission, but do the code test, here is how u do that, go to the link below for instruction's that apply to all Chrysler cars and trucks

http://check-engine-light-codes.blogspot.com/2006/04/chrysler-1985-95-obd1-code-self.html

Jun 29, 2010 | 1993 Jeep Grand Cherokee

1 Answer

1993 jeep grand cherokee, choking, pulling then stalled,


Check:
- Fresh Air Intake Hose: Clogged or Damaged FreshAir Intake Hose.
- Carburetor: Worn, Faulty or Damaged Carburetor.
- Mass Air Flow Sensor: Damaged, Loose, or Faulty Mass Air Flow Sensor or Circuit.
- EGR Valve: EGR Valve Sticking Open/Leaking.
- Idle Air Control Valve: IAC Valve Sticking or Faulty.

Good luck.

Aug 02, 2009 | 1993 Jeep Grand Cherokee

1 Answer

1993 Jeep Grand Cherokee, V6. Oil Pressure Gauge Read High.


it could be the sensor you should look at the oil pressure relief valve

Jun 10, 2009 | 1994 Jeep Cherokee

1 Answer

1997 Jeep Grand Cherokee Stalls when put in gear V8


Replace the throttle postioning sensor, and mass air flow sensor

Mar 09, 2009 | 1997 Jeep Grand Cherokee

1 Answer

1993 jeep grand Cherokee...stutter in drive at low rpm


Hello;
Have you checked your fuel pressure and volume? You may not be getting the ful sufficiently to the injectors. Also, change your fuel filter if you haven't already. Is the check engine light on?
Thanks;
Rich
RPM Northwest

Jan 22, 2009 | 1993 Jeep Grand Cherokee

2 Answers

Extreme vibratin @ 1700-2300 rpm


One of your motor mounts is touching metal to metal, either the rubber is cracked or broken, or crooked and frameing out

Jan 07, 2009 | 1993 Jeep Grand Cherokee

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