Question about 1987 Jeep Wrangler

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Replacing fuel injector on jeep 2.5

How do you replace a fuel injector on a 1987 jeep 2.5?

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Disconnect your Battery.
Remove your air intake and filter housing all the way to the throttle body. Then use a shop rag and release te pressure in the fuel system by the valve on the fuel rail. use the rag to absorb the fuel as it sprays out the fuel rail.
then you unsrew the 2 bolts holing the rail in place.
Then you pry the rail away from the manifold with a flat head.
being careful not to loose any of your injector seals.
when done clean both your injector seats and the rail seats.
use some assembly lube or shop grease to lubricate all of your injector seals upper and lower seals.
remount all parts as you dismounted.
reconnect your battery cylce the ignition key 4-5 times before starting the egine, and check for leaks. if there is no leak then go ahed and start your engine.

Posted on Jun 20, 2008

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My gas gauage only goes rm full to half but as the gas starts to half tank the jep tarts to jrk an th explotion sounds comeout of the muffler


muffler explosion
is caused by 2 things
air entering the exhaust (leaks )
and gross engine fuel controls out of control, a very rich conditon
there is no person on earth can guess why.
a tech, would do about 10 tests, and find the cause, then the part.
87 is a water shed year.
is your car CARB or EFI. some were CARB. so what engine size
and which fuel system. ?????

is this your car engine, (wild guess) USA cars only not export Jeeps.

The throttle body fuel injection is used on 1987-90 Wranglers equipped with the 2.5L engine and is a "pulse time'' system that uses a single solenoid-type injector to meter fuel into the throttle body above the throttle plate. Fuel is metered to the engine by an Electronic Control Unit (ECU),

Jun 25, 2014 | 1987 Jeep Wrangler

1 Answer

Fuel injectors quit working


fuse power to rail injector must be good check fuses first.
is CEL glowing key ?
ok,no engine stated. this the 4 liter? I6? nah you said HEADS
not 2.5L I4
not 4.0 L I6
so must be V6, really
or the 2.1L diesel....>>>>
and 3 or 4 diffr. EFI systems, im not much help
why folks post engine free ,amazes me....

it takes 2 things.
fuel pressure over 30psi (generic)
and the noid lamp passing on injector.

and the knowledge that all jeeps,(cars) cut fuel (gas)
if the PCM see and errors with (crank for 5 seconds)
1: spark?
2: CMP?
3: CKP?
4: if IMMO , that too, no imm on 87, think , go lazy to look up.

If the NOID lamps fail x6 (no injection pulses)
then the ASD relay is dropping out)
87 is the really really old RENIX/Benicx injection system. on 4L
i had a 88. same car.
see alldata.com for permissive to inject.

on my old I6 4L Renix sys
the injectors are all grounded , that is correct
and the ECU drives this hot switched ! unlike most cars.
back then the ASD was called the LATCH relay.
if it dont pull in and stay , it will not run.

Ill stop there. until you say what engine and country car resides.
export jeeps are wired different (laws)

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Fuel injectors


For jeep grand Cherokee fuel injectors replacing, i suggest you to go the help oink provided below:-----

Its a complete step by step procedure to do so:-----


Fuel Injector Replacing Jeep Grand Cherokee

http://www.howtorepairguide.com/2012/11/fuel-injector-replacing-jeep-grand.html
-------------


How to Replace a Fuel Injector
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html-----------

How to Test and Replace Fuel Injectors on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html
------------

How to change fuel injector on 2005 gmc envoy?
http://schematicsdiagram.blogspot.in/2012/03/how-to-change-fuel-injector-on-2005-gmc.html
------------These will help.Thanks.

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