Question about 1994 Ford Ranger Supercab

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Why 94 ranger 4.0 rpms 2200 take breather off rev up 2 times drops to 1700 1800 at 55 60 for a while then goes back to 2200 no engine light ?

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  • Ford Master
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The idle air control motor may be defective/sticky. The computer gives it a command but doesn't realize the motor is not following the command and therefore no check engine light. You can remove the IAC and try to clean it with carb spray

Posted on Apr 06, 2015

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Posted on Jan 02, 2017

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My question: what can cause the car to do this?


I assume the car you are talking about is your 1968 Dodge Dart GTS with a 4-speed manual transmission. The engine has a special camshaft, Chrysler P/N 312044, which has a 60 degree overlap in the valve timing, since the engine is built to rev in excess of 6,000 RPM. The problem with your car is obviously a leaky accelerator pump. Why don't you get a car that (1) does not have to run on premium gas (because of its 10.5:1 compression ratio), and (2) uses fuel injectors instead of a wild 4 barrel carburetor made for 1/4 mile drag racing? I happen to know that that is the car you are referring to, because you did NOT say that it WASN'T!

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My 1987 nissan pickup z24 wont rev up passed2800 rpms


Maybe a safety device to keep from blowing your motor like the ford rangers and other vehicles have on them. It's a rev limiter.

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Mitsubishi triton mn


it may require a ECM upgrade in the software
in the mean time restrict the rpms between gear changes
for example accelerate in first ti around 3000 rpms and slow down the selection and keep the rest of the changes around the 2500-3000 rpm range
naturally , the harder yo rev it the longer it will take for the rpms to drop
just as a point of interest how did you get a brand new car that is 4 years old ?

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Car dies out after 2200 rpms


sorry to upset you but its either a sensor but i suspect more like the computer

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1989 F150 351 oil pressure guage starting dropping to 0 suddenly and engine light comes one. When I rev the engine it goes back to normal but a soon as the rpms drop the needle goes all the way to the left...


Hi:
Usually your oil light doesnt come on unless you have less than 10 lbs of oil pressure. You either have a bad oil pressure sending unit, or your engines oil pump is bad. The only way to verify your engines oil pressure is to buy a direct reading pressure guage and install it on your truck, or have a mechanic check your engine oil pressure. Eitherway, you need to do something soon, because the long term effects of running with low oil pressure will ruin your truck engine.

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91 miata mx-5 cuts out at 2200 rpms- cant smog- check eng. lite isn't on


The very first thing to do is replace the ignition wires. These were a very common problem on Miatas. Since you're taking them off, it would be a good idea to change the plugs as well. These things are really just maintenance, but one other thing to check is the condition of the intake hose. It is critical that the hose that runs between the throttle body and the airflow meter has no cracks or flaws. Sometimes they are hard to see because the hose has creases in it. It's a good idea to take the hose off and inspect it carefully. If it is broken in anyway, the airflow meter won't know how much air is entering the engine and fuel will be cut off.

Apr 05, 2009 | 1991 Mazda MX-5

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94 honda del sol's engine revs up and down


I know exactly what you are talking about, it will go high to about 2 to 4k rpms, then back down to 1k in intervals of about 3 seconds. It is either the idle air position sensor, or the throttle body position sensor, hondas are famous for it. The parts are cheap, about $20-$30, and fairly easy to install when you find it. I suggest a Haynes Manual for installation to make it a lot easier if you don't know where it is. Good luck, hope all goes well.

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91 miata mx-5 cuts out at 2200 rpms- cant smog- check eng. lite isn't on


Sounds like petrol starvation - the pump may be in need of replacement.

Oct 14, 2008 | 1991 Mazda MX-5

2 Answers

2004 Ford Ranger Low Idle


I figured out what was going on. supposedly on ford rangers the Idle Air Control Valve (IAC Valve) goes bad. i got a trouble code looked it up and sure enough it is the IAC Valve. Under 100 bucks for the part

Jul 04, 2008 | 2004 Ford Ranger

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