We just replaced the engine a few weeks ago and are struggling to get it running. It will start up fine than makes a knocking noise. and dies like 10 seconds later. Fuel pump turns on and we have pressure to the fuel rail, I m hoping the knocking may subside when the engines all lubed up but I need to keep it running in order to do that. There is a slight gas smell. We have checked the fuses under the hood all good.PPPLLEEASE Help! :)
Sounds like the relay that runs the fuel pump. The computer may be reading no oil pressure and shuts the engine down Check the oil pressure when it starts with a manual gauge. You may need to prime the oil pump.
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SOURCE: 2000 Jeep Grand cherokee Laredo
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
SOURCE: 1993 jeep grand cherokee limited starts for 2-3
Sounds like your injectors are not getting any signal from the ecu. Have you checked to see if you have a check engine light that illuminates when you first turn the ignition to on? If no check engine light is lit on your dash, your ecu needs to be repaired or replaced.
SOURCE: 2002 WG Jeep Grand Cherokee
The error P1130 and P1131 is for the fuel trim and lean fuel mixture respectively. This tells me that this may be an issue with the air fuel mixture or its reached its limits in compensating for the incorrect mixture. You could try to clean out the intake first using carb cleaner spray or tuner spray to clean out the intake and the MAF sensor which measures the air that comes in. Check also if there are leaks or gaps on the air duct found between the air filter and the intake manifold and the intake plenum. Leaks would cause the system to get an incorrect reading. If it were a faulty sensor you should get the error code for the sensor and you may have issues starting the engine up.
Check also the vacuum hoses which may be loose or cracked that needs replacing or refitting. This is also a common cause. I also do not rule out the possibility of the fuel sensors going or starting to go bad. The PCV may also need cleaning or replacing.
With all mentioned items go check first the leaks of the intake system and the vacuum lines as these are found to be common. Some leaks or cracks are minimal but is crucial to the sensors.
SOURCE: Where is the idle located on a 1994 Jeep Grand Cherokee limited
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
CAR NO START PROBLEMS:-----
It
can be the issue with weak battery or faulty battery or if battery is ok,then
its faulty starter causing the issue.
From
start to end troubleshooting these problem i suggest you to click the link
below and follow its procedure:-----
What to Do When Car Turns Over But
Won't Start?
http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html
-----------
http://technoanswers.blogspot.in/2012/02/car-starting-issues.html
------------
http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html
--------
http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html
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http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html
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http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html
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http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html
----------
--------------
--------
http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html
----------
---------
It
can be the issue with weak battery or faulty battery or if battery is ok,then
its faulty starter causing the issue.
From
start to end troubleshooting these problem i suggest you to click the link
below and follow its procedure:-----
What to Do When Car Turns Over But
Won't Start?
http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html
-----------
Car starting issues?
http://technoanswers.blogspot.in/2012/02/car-starting-issues.html
------------
Car Starting Problems
http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html
--------
1991 Toyota Trecel: Engine Starts fine but
dies when gets Warm?
http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html
----------
1994 Toyota Pickup: Starts fine but dies in
few seconds?
http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html
---------
1999 Chrysler Cirrus: 8 IGN Fuel Starter Fuse
Blows?
http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html
-----------
2001 Toyota Camry: No start After replacing Battery?
http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html
----------
1989 Toyota Pickup Truck: Turns over but not
start?
http://whatisbyme.blogspot.in/2012/05/1989-toyota-pickup-truck-turns-over-but.html
--------------
Car dead and will not Start?
http://whatisbyme.blogspot.in/2012/05/car-dead-and-will-not-start.html
--------
1995 Lexus LS400: Running Hot?
http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html
----------
2001 Toyota Prius will not start?
http://whatisbyme.blogspot.in/2012/05/2001-toyota-prius-will-not-start.html
---------
1996 Jeep Grand Cherokee: Engine will not start?
http://repairhelpcenter.blogspot.in/2012/06/1996-jeep-grand-cherokee-engine-will.html
-------------
Mitsubishi will not start
http://www.howtorepairguide.com
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These will help.
Thanks.
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