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  #1  
Old 09-02-2009, 04:53 PM
chris3182 chris3182 is offline
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Default 03 ranger issues

i just bought an 03 ranger yesterday. and the whole test drive and way home which is about 20-25 miles there was no issues. i park it last night and get home from work today and start it up to give it a once over and its having a real rough idle that goes away at about 1500rpm but any below that it is rough. it dosent feel like a misfire either. when i start it it is a solid check engine light. then after about 3-4 minutes it starts to blink. if anyone has any experience with this issue help would be greatly appreciated.
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  #2  
Old 09-02-2009, 06:24 PM
Jay FX4 Jay FX4 is offline
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Auto/manual?
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  #3  
Old 09-02-2009, 06:49 PM
DieHard4rd DieHard4rd is offline
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Vacume leak??

Take it to your local AutoZone & they will plug in a code reader & tell what's wrong for free.
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  #4  
Old 09-02-2009, 06:53 PM
STL STL is offline
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Get the code checked and we can go from there
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  #5  
Old 09-02-2009, 08:41 PM
02'4.04x4 02'4.04x4 is offline
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Default You might want to check a couple of the h

Quote:
Originally Posted by chris3182 View Post
i just bought an 03 ranger yesterday. and the whole test drive and way home which is about 20-25 miles there was no issues. i park it last night and get home from work today and start it up to give it a once over and its having a real rough idle that goes away at about 1500rpm but any below that it is rough. it dosent feel like a misfire either. when i start it it is a solid check engine light. then after about 3-4 minutes it starts to blink. if anyone has any experience with this issue help would be greatly appreciated.
You might want to check a couple of the harness connectors like the TPS, MAF, etc. just the obvious ones. It is possible that their tech who worked on it did a half donkey job putting it back together after a tune-up and one of the connectors vibrated loose, your discription directly fits the bill for the MAF connector, but it is usually felt across the board, the TPS usually affects everything below a certain point, it is really just a trigger switch to tell the computer when it needs to take over for idling. Unless your truck ate bad mexican food and has bad gas. If all connectors check get ahold of Heet, water remover, ir 6 oz of Iso alcohol and dump it in the tank then drive zig zags for a few seconds and it'll clear itself up usually in about 10 minutes driving, not idle, driving. G/L

Note: this statement has not been evaluated by the food and drug administration and is not intended to treat or cure any disease, you should not use this statement if you are pregnant or could become pregnant as it is about quick checks you can do to Tshoot your vehicle quickly and avoid those $100/hr fee's your dealer charges for every 15 minutes a tech actually looks at your vehicle. Common side effects of consuming automotive fluids orally are headaches, blurred vision, vomiting, anal seepage, and in some rare but appropriate cases death.
P.S. if you are cute, female and looking to become pregnant PM me. . . = )

Last edited by 02'4.04x4; 09-02-2009 at 08:50 PM. Reason: Disclaimer
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  #6  
Old 09-03-2009, 02:00 AM
chris3182 chris3182 is offline
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It is manual. I'll check all my sensors tonight. And if that turns up nothing I'll bring it down to autozone. I appreciate all the suggestions.
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  #7  
Old 09-07-2009, 06:49 PM
CapeRanger CapeRanger is offline
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Ford issued a technical bulletin on all '93, 3.0L Rangers. I found it at alldatadiy.com

"Article No. 95-12-6
06/19/95
IDLE - ROUGH - 3.0L VEHICLES - WARM ENGINE AT ALL AMBIENT TEMPERATURES - 1992 4X2 VEHICLES WITH MANUAL TRANSMISSION - ALL 1993 VEHICLES
Light Truck: 1992-93 Ranger
All listed vehicles may need engine insulator replacement. Powertrain Control Module (PCM) changes are for listed calibrations only.
CALIBRATION:
3-56F-R00, 3-56H-R00"


The article goes on to list the service procedures, but they're too long for this post.
I haven't needed it so I don't know anything about it. Hope it helps.
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Last edited by CapeRanger; 09-07-2009 at 06:51 PM.
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Old 09-07-2009, 06:52 PM
Jay FX4 Jay FX4 is offline
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My first thought was vacuum leak, too. Although that by itself won't necessarily cause the CEL. Any updates?
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Originally Posted by Ranger Dave (B25) View Post
Our foreign policy is laughable at best. As is the recipient of this years Cracker-Jacks prize for 'peace.'
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NOS for teh horse powaz!!!
ɹǝʌo ǝɯ dılɟ
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  #9  
Old 09-08-2009, 03:10 PM
chris3182 chris3182 is offline
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Update is that new plugs and wires made the flash go away now it's just a solid cel. I can't clear code to verify problem is gone. I went to autozone and they couldent clear and had my buddy down at VIP autoparts try to clear and he says it won't let him in. There's a block on it he can't even look at the codes. Any suggestions or do I have to go to ford? Thanks for every ones help. Chris
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  #10  
Old 09-08-2009, 03:35 PM
DieHard4rd DieHard4rd is offline
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Have you tried unhooking the battery so the computer can reset?
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  #11  
Old 09-08-2009, 07:51 PM
02'4.04x4 02'4.04x4 is offline
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Turn the key to off with alot of things on in the vehicle and remove the key pull both cables from the battery and then replace they key and turn to on position leave it so for 15 minutes. then remove key and leave it over night this will ensure all capacitors are drained and the computer will reset and should clear most all lights. Unless it has triggered a special code that will infact have to be cleared by a tech.

But before you take it in make sure you put water remover in gas and give her a go around 4k rpm's for a few minutes of driving. A-typically you should notice it flucuate in accelleration it'll seeming start to pull and then out of nowhere it'll just choke up and drone. These are direct symptoms a water in the fuel it is denser thn fuel and in lower idles it can block the injectors from getting fuel. The only odd thing is that it came out of nowhere overnight unless someone does'nt like you. I hope this is the issue, uh the water part not the like thing. HTH
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  #12  
Old 09-12-2009, 04:52 PM
chris3182 chris3182 is offline
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so here it is. the misfire came back. ecm says cylinder four. compression check is 90psi all the rest are roughly 180. did leakdown it is 11% so. how bad is the cylinder heads on that motor the v6 3.0 non flex fuel. if anyone knows what i need besides new head and headgasket and valve cover gasket. im not too familiar with that motor so any info is greatly appreciated. and all the other suggestions so far were much help and are appreciated. thanks chris
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  #13  
Old 09-12-2009, 04:54 PM
chris3182 chris3182 is offline
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one more thing i was gonna try some seafoam to see if one valve was just stuck. or coked up where do you add it on that....i know nothing about things without carburators.
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  #14  
Old 11-02-2009, 07:22 AM
chris3182 chris3182 is offline
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hey just re seated the valves on clynder 4 and its running good so far. thanks for everyones suggestions it was greatly appreciated.
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  #15  
Old 12-29-2009, 02:50 PM
bigred2003 bigred2003 is offline
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i have an 03 ranger that i have put alot of money in i have also the same problem i have replaced sensors catalyic converters plugs wires and everything etc everyone has said on here i adjusted my throttle and that has been the best thing so far but my check engine light is still on so idk if that helps you any
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