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  #1  
Old 02-03-2011, 09:21 PM
bartmantom bartmantom is offline
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Default 1990 Ranger nightmare won't run

was given this rig from my Dad, will not run. It has spark, good fuel PSI. if I rapidly work the throttle from no peddle to full throttle, then repeat very fast, it will start to spit and sputter and try and run but that is it. I even hooked up a different computer to it to no avail. I've replaced the Throttle position sensor and the fuel pressure regulator, cap and rotor too.

any help would be great.
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  #2  
Old 02-03-2011, 09:55 PM
Clinton Clinton is offline
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Default Re: 1990 Ranger nightmare won't run

fuel pump?
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  #3  
Old 02-03-2011, 10:54 PM
bartmantom bartmantom is offline
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Default Re: 1990 Ranger nightmare won't run

fuel pump runs fine, good fuel pressure
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Old 02-04-2011, 07:15 AM
Psychopete Psychopete is offline
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Default Re: 1990 Ranger nightmare won't run

What has all been done to the truck? (Distributor sounds like it could be 180 out if it has been removed) Verify your firing order also.

Are you actually getting fuel into the cylinders?

What is your actual fuel pressure PSI reading @ KOEO?

Have you tried to start with starting fluid?
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  #5  
Old 02-04-2011, 04:30 PM
bartmantom bartmantom is offline
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Default Re: 1990 Ranger nightmare won't run

firing order is good - I'll check it again, distributor has not been removed. fuel PSI is 38-40. have not tried starter fluid - I'll give it a try today.
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  #6  
Old 02-04-2011, 09:36 PM
More_Cowbell More_Cowbell is offline
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Default Re: 1990 Ranger nightmare won't run

are you getting power to the injectors?
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1990 Ranger Extended Cab
2.9L V6 5 Speed Transmission
Planning to put a 347 and a T-5 in it eventually

Quote:
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It looks like someone attacked the front of the truck with a bedazzler.
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  #7  
Old 02-10-2011, 08:37 PM
bartmantom bartmantom is offline
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Default Re: 1990 Ranger nightmare won't run

starter fluid did nothin much - spit and sputer.. what the heck is wrong wth this POS. have not checked voltage at injectors yet, maybe tomarrow.

----------

did a quick comression check on a couple cylinders got 150 PSI on each one I checked.
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Old 02-10-2011, 08:46 PM
Jimmeh Jimmeh is offline
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Default Re: 1990 Ranger nightmare won't run

Quote:
Originally Posted by bartmantom View Post
starter fluid did nothin much - spit and sputer.. what the heck is wrong wth this POS. have not checked voltage at injectors yet, maybe tomarrow.

----------

did a quick comression check on a couple cylinders got 150 PSI on each one I checked.
If you only checked 2 then you still got 4 more to go.
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  #9  
Old 02-11-2011, 08:21 PM
bartmantom bartmantom is offline
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Default Re: 1990 Ranger nightmare won't run

yeah I'l get the other four soon
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  #10  
Old 02-25-2011, 10:44 PM
bartmantom bartmantom is offline
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Default Re: 1990 Ranger nightmare won't run

well, while checking the compression on the rest of the cylinders I replaced all the spark plugs, compression was good on all six cylinders. I was able to get the truck to kinda run as long as I kept rapidly moving the throttle. it ran long enough for some codes to get stored into the computer. I pulled the codes and it said the MAP sensor was out of range - or some such thing. any way, I replaced the MAP sensor and my truck is now running great. thank God!!! thanks to everyone for your suggestion.
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