Question about Ford Ranger

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It runs rough sometimes it dies, I have tuned it up , plugs dist cap, wires rotor the computer , It has very poor gas milage .it has a 2300 with automatic trans,

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U should do a compression test to rule out internal engine wear or damage, very important. also u need to isolate dead cylinder or cylinders to verify proper eng compression ,an if is good suspect a faulty injector or clogged inlet screen on that dead cyl. one way to isolate a dead cyl is to pull of spark plug wires while engine is runnin(with an approved spark plug boot pliers which r insulated). a good cyl will drop total rpm down 200 to 300 rpm, a dead cylinder will not change ur idle rpm wen the wire is disconnected.thats how u isolate a dead cyl. good luck

Posted on Apr 09, 2011

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Have the intake gasket checked. spray carb/choke cleaner around intake gasket and if rpms change then you have a bad gasket which causes rough idle bad fuel econ

Posted on Apr 09, 2011

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Related Questions:

1 Answer

2000 gmc jimmy 4x4 p0300. Replaced cap, rotor, wires, plugs, map sensor, checked icm. Nothing has helped


Just a thought,pull the dist.cap and make sure the rotor has
no side to side play ,thinking maybe a bad upper bushing in
the dist.Also,if the EGR valve has carbon and soot built up
on the piston it will make it idle really poor ,but run ok.
Might pull the EGR and clean it with intake cleaner.
Hope this helps.

Apr 12, 2013 | 2000 GMC Jimmy

1 Answer

1995 toyota camry runs very well accept when at idle its rough 4 cyl.


You need to have a full tune up done on the vehicle. Plugs, wires, air filter, dist. cap, dist. rotor, and oil service. This greatly increases the operation of the motor if they are old and worn. I hope that this points you in the right direction. Please rate if i was able to help you.

Mar 30, 2011 | 1995 Toyota Camry

3 Answers

Son-in-law did a tune up. Plugs, plug wires, rotor, distrbuter cap, pvc valve and all the filters. He change the oil also. The fuel pump was the original problem. He changed the pump and fuel filter. The...


Check for an air leak in the fuel system. It sounds like the son-in -law did good work but missed an air leak somewhere. The system is not providing enough fuel to the engine. The other possibility is that you are pulling a vacuum on the fuel tank. They have to be vented either through the cap or through the canister. First take the fuel cap off and see if the truck will run. If it does put the fuel cap back on and pull the hose off the canister and try to run the truck. If it runs it was the canister.

Mar 18, 2010 | 1995 Dodge Caravan

1 Answer

Had work done on my car (36K miles on the car): oil change, new plugs, new plug wires, new dist cap, new dist rotor, fuel filter, pvc valve, and brake work. Now it runs like ****. rough running and exhaust...


Sounds like a fuel mix problem possibly the oxygen sensor. If it ran like this immediately after the new plugs, I would check to make sure all the plug wires are on the right plugs and secure. Good luck!

Mar 10, 2010 | 1990 Nissan Maxima

1 Answer

Starts and runs rough with black smoke as flooded


when you replaced the plugs/wires. Did you do the cap and rotor too
Also have your timing checked

Jul 10, 2009 | 1988 Chevrolet Blazer

2 Answers

Motor runs very rough and has no power when going down the road?


Also check you Mass Air Flow Sensor. If they go bad or get dirty they run terrible. You can purchase MAF cleaner at most auto part stores. Give this a try, its cheap.

Jul 20, 2008 | 1999 Chevrolet Blazer

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