Rough Idle to Stall
#1
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Year: 1991
Model: Cherokee
Rough Idle to Stall
Hey all, so I bought a 91 Cherokee that didn't run month or so ago, and just this week was able to get it finally started and running. However, now I can get it started, but after 5 or so seconds of running, the RPM's drop and it stalls. I can press on the gas in neutral or in gear and it will run for a bit longer, but eventually even if I don't let off the gas pedal the RPM's still drop and it stalls. I have less than a week before I need it running properly so I can get it registered. Any help getting this fixed would be great, thanks!
#2
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Year: 1999
Model: Cherokee
Engine: 4.0L I6
Check the basics. Fuel, spark, air. You are getting spark because it runs though it may need a tuneup still. Your also getting air because it runs though may still need an air filter. That leaves fuel. First step would be to check the fuel pressure with a mechanical gauge.
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Year: 1991
Model: Cherokee
I just replaced the fuel pump so it won't be that, maybe the fuel lines? And for spark, how can I test the wires and plugs? Or is there no test really and I should just go out and buy new ones? And could air really be causing it to stall?
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Year: 1999
Model: Cherokee
Engine: 4.0L I6
Just because you replaced the fuel pump doesn't mean it is working properly. Get a gauge and check the fuel pressure.
It is running you have spark. You may need a cap and rotor along with plugs and wires.
You would be suprised what a clogged air filter can do but I doubt its the problem here
It is running you have spark. You may need a cap and rotor along with plugs and wires.
You would be suprised what a clogged air filter can do but I doubt its the problem here
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