Having problems with your 2000 Jeep Grand Cherokee ?

No power to fuel injectors on jeep

\015 No power to pcm fuse for fuel injectors\015 Posted / edited by AnonymousUser on : 15-01-2018

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Repair Help & Product Troubleshooting for 2000 Jeep Grand Cherokee

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I have a 1996 jeep grand Cherokee with the 4.0 inline 6 and I have 48lbs of fuel pressure at the fuel rail and we used a pulse tester on the injectors and they showed that I have no power to them what could cause this I also sprayed starter fluid in it and it fired and ran so I have spark just no power to the injectors

You need to check with a test light now, and see if you have voltage at any of the two wire's going to the injector, if you do have voltage, reverse test light at battery and check other wire, that will be ground pulsation, if you have voltage and no ... Jeep Grand Cherokee


Pretty sure the injectors run of the ecu but woudnt swear to it cant u loosen a fuel line and see if pump is working ... 1993 Jeep Wrangler

94 Wrangler I6. During warm and hot weather my jeep will act as if it is not getting enough fuel after running at highway speed for awhile. It will miss, back fire and has no power. I can let it set for about an hour and the issue stops for a little while but then returns. I have changed the fuel pump, and filter computer, all fuel injectors, water pump and alot of other parts. The jeep smokes some but there is no water in the oil. Thanks Mark

When it warms up and acts up disconnect the ECT,(coolant temp sensor) it mounted toward the rear of your alternator, see if there is any difference,also inspect the hose at the map sensor make sure its not torn on any ends or kinked, ... 1994 Jeep Wrangler

Ihave 1992 jeep wrangler.I put new fuelinjector in because number 4 was bad. But it still does not have right power for a 4 clyinder. Next I had the head redone but when you unhook the wire from number4 fuel injector nothing happens stillI have low power and a small back fire.I hooked up to scope to time it and it still does the smae thing.the fuel injecton wires have been checked ,they have pluse going through them.Could THIS BE a pdc problem.If so who rebuilds these

If you're getting a backfire, you have either a timing problem or a valve problem. ... 1992 Jeep Wrangler

My 1998 Jeep Cherokee seems to loss power everytime I start it. After just 2-3 seconds, the engine shuts off. I got the vehicle from an impounding area and it has not been used for more than three (3) years. All electricals are working including the engine computer unit and all fuel injectors. It has a manual tranny and has a 4-cyclinder, 2.5L, petrol fueled engine. I have already replaced the fuel pump and all the spark plugs but still did not fix the problem. Is there some kind of switch that

Since is sat so long, whatever fuel was in the tank has probably gone "sour". Old gasoline gets an unpleasant "varnish" smell to it. The only certain way to remove any bad fuel is to drain the tank, and by all means change the fuel filter again. ... 1998 Jeep Grand Cherokee

2000 Jeep Grand Cherokee Laredo 6 Cyl, Cranks but wont start. Fuel pump builds pressure to fuel rail, tank is 3/4 but fuel guage not moving. No Spark, checked all fuses, the Trans solenoid, O2Sensor, and Injectors sensor no power at fuse box under hood. they seem to be working in reverse polarity, when connect probe to positive post and probe those three they connect and light probe??

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No power to fuel injectors on jeep

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I have a problem with my 1994 jeep wrangler se. It has an inline six, 4.0 high output motor. I did a partial tune up... Plugs, wires, cap, and rotor. It idles perfect but when I climb hills or step on it.... My jeep hesitates and loses power. I checked the firing order and it is correct. I also used some fuel additives to help clean my injectors. note. I used those bosch+4 spark plugs... if that has any bearing on things...

Mate.If you have done what you said,I think it might be just a small engine timing problem.The plugs that are recommended are champion RC12LYC,gap 0.035 in, just make sure yours are compatible.and the gaps are correct.The only other thing it might be ... 1994 Jeep Wrangler

I have a 2006 Jeep Gas Engine Liberty with 29,000 miles on it. The engine will turn over but will not start. The fuses all look fine and I replaced the crankshaft position sensor. Still no electrical power at the fuel pump at the fuel tank and no pressure at injector manifold.

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What do the engine codes 12, 51, and 17 mean on a 1995 Jeep Cherokee 4 cylinder , 2 whd, 5 speed. It has a rough idle, really low fuel mileage, and not much power. Just recently started this problem.... I have changed plugs, wires, cap and rotor already. Along with a oil change and fuel filter. Ran injector cleaner and cleaner thru the intake for carbon build up. Still not fixed the problem....?

Code 12; Means the PCM sensed the battery was disconnected and after 50 key cycles, this code will disappear. Code 17; Means the engine is cold too long after start up. Engine coolant temp remains below normal operating range during vehicle travel. T ... 1995 Jeep Cherokee

Loss of electrics to engine 96 jeep grand Cherokee have fuel to rail no power to coil, injectors

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I have a 1990 lexus ls 400 it has no power to fuel pump or to injectors i checked the fuel pump relay it was good but getting no power to relay either seems like no power to any of the fuel components i checked the efi relays also fuses too i can run a hot wire to the fuel pump and it runs, i have test lighted everything i can think of to see if it can get power or has power. when i put power to the injectors with the test light they are showing they are fine, is this a computer problem or is it

Yes have the computer repaired and this should fix the problem. these cars are known for have the computers go bad. ... 1990 Lexus LS 400

1991 toyota mr2 2.2L n/a manual no power to fuel injectors, ignition fuse, or fuel pump MR2 will turn over but not start. No power to fuel injectors, ignition fuse, the mystery relay behind the glove box, or fuel pump. There is power to the EFI relay and fuse. All three fuse boxes check out(spare compartment, under dash, and engine compartment) except power to the ignition fuse. New distributor, external fuel pump, ignition control module, cap & rotor, head, spark plugs & wires. The car had been

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I have a john deere model 2345 tractor 3 cylinder diesel for my orchard and it has a lack of power , starts and idles fine with not much exaust gass's , when reved up for use , u get power for bout 15 to 30 seconds then it starts making a putt putt putt noise and no power , the exaust starts goin black im thinking its a fuel related problem , lack of fuel to the injectors but do not have a diagram for the fuel lines , it has had 1 injector replaced , the fuel filter as well , can anyone advise

If you are getting black smoke you are getting to much fuel.of you are getting to little fire check both. ... Ford F-100

I am not getting power to the fuel injectors or the ignition coils on my 2002 jeep liberty limited.

Possibly a blown fuse.. ... Jeep Liberty

Automotive electrical Our 2001 jeep cherokee has no spark or power to the fuel injectors

Without actually looking at the jeep, this is a shot in the dark.\015\012Replace the crank sensor (if it's bad, you will get no spark or fuel\015\012pulse). It is located on the tranny bell housing on the left side. ... 2001 Jeep Cherokee

I have key is on but no power to fuel gauge and injector fuse engine cranks but no start on Jeep liberty 02

Sounds like the security system has shut down power the fuel system. That must be reset by a Jeep dealer. ... 2002 Jeep Liberty

When i start the engine on my 04 jeep 4.7 liter engine it sputters but clears up and idles good and it runs good no loss of power and no check engine light. it happens when it sits for a priod of time i can shut the key off after starting it and it wont do it until it sets again i changed the spark plugs it has a new fuel filter. i was thinking it might be the injectors?

The first thing i would check is the fuel system hook a fuel pressure gauge up to the fuel rail and check the fuel pressure, after you have verified the fuel pressure is good let the gauge sit and monitor how much "bleed down" occurs if the bleed dow ... 2004 Jeep Grand Cherokee

1990 Mustang 5.0L, good pressure at the fuel rails good fire at the plugs, checked pugs, not flooded, no signs of fuel on plugs (no fuel pulsing at injectors), I've checked and replaced numerous parts(electronics),and had parts checked for good working conditions, I've done continuity checks, and also checked power to the injectors with (key on)it's got power. I will say that I don't have power to the inertia switch with key on, I've jump the inertia switch wire connector by inserting a jumper w

Do u have injector pulse, make sure with the key on u have 12 volts to the injectors, if not u may have a defective ignition switch, they were recalled for this problem, the actual electrical switch is at the base of the steering column and actuated ... Ford Mustang

CAT 420D IT - lack of power- changed two fuel filters, one by injector pump and other between left front tire and fuel tank. Air filters cleaned, tractor serviced, Then used air to blow thru lines back into fuel tank not satisfied with POWER, tractor will not self load front bucket without busting up material with backhoe first.. Suggestions???? Is there need to turn up fuel injector pump?

\012You may have this\012posted in the wrong product category. Please select another category\012appropriate to the problem and re-post the problem so the correct\012expert will see and respond to the question.. \012\012This is for ... Cars & Trucks

1990 Deville, new fuel pump, new ICM, 40 psi on fuel rail, got spark, start the car and it runs fine for short time then dies. I have found out that something kills power to the injectors. Shut the hood, cuts off. Lock the doors, cuts off. I checked for good body grounds. Removed after market alarm system and checked for fuel disabler PCM, and could not find the right numbers on it to call it a fuel disabler. Still it cuts off with no power to the injectors. Please help before I am pushed to th

Replace the fuel Pump relay in the Power distribution box under the hood. Also, start checking the wiring harness back to the fuel pump for shorts. Most likely this is the relay cutting out every time it is pumped or jiggled but it is possible, how ... 1990 Cadillac Deville

93 jeep cherokee-while cruising down interstate jeep sudenly started jerking, stalling, and lose of power. I pulled over to station. checked oil level, pressure, temp, alt output--all ok. jeep will start and idle but bogs down when accelorator applied. I visually checked fuel pump relay(no burn marks on terminal or clicking noises), replaced fuel filter. also noticed O2 senser is broken at wire connection but cant imagine would cause such power lose. jeep starts and idles but same problem as ab

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What powers the fuel injectors on this van? Is the fuel forced through the injector by the compression of the fuel pump, or the suction of the vacuum compressor? Or is the injector given an electric signal to allow the fuel to pass through? I ask this question because I am having trouble getting gasoline to pass through the injectors. I don't know if the injectors are bad (I JUST HAD THEM CLEANED FOR $250) or if something else is causing this problem. I feel as if I will be able to solve the pro


1990 yj jeep 2.5 L No fuel out of injector. Have fuel up to the TBI, Is it the injector, ECU, or cam sensor? Jeep sat for 2 years. Changed fuel pump & filter.

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Changed main fuel pump and filter about 2 months ago. Car now looses power at times when you step on gas and makes stuttering noise (94 Volvo 940 Turbo) MoreChanged main fuel pump and filter about 2 months ago. Car now looses power at times when you step on gas and makes stuttering noise (94 Volvo 940 Turbo) Comments:Jan 27, 2010 - Changed plugs, added injector cleaner a week ago Jan 27, 2010 - changed plugs and added fuel injector cleaner. have intank pump out of the car right now See less

This sounds like an intank low pressure pickup pump problem, the intank pump failing causes the symptoms you have, that being a lean condition, the larger rail pump has no real suction, it needs about 10 pounds of pressure on it to pump correctly, th ... Volvo 940
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