Question about 2000 Isuzu Rodeo

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The check engines light came on and i can't find anything wrong & the motor rpm is high them it high

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O2 sensor may be dirty from not running premium gas. Check your exhaust for smoke when revving the engine. This will indicate a fuel air mixture that is too rich, usually caused by a sooty O2 sensor.

Posted on Oct 02, 2010

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Posted on Jan 02, 2017

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3 Answers

My 2002 Chrysler town and country blower fan works when ignition is in accessory mode but when car is running there seems to be a great draw on the engine. Do you know what might be wrong?


In accessory mode you won't notice the high current draw because the alternator is out of the circuit and the engine is not running. With the engine running, you will see the excessive draw on the volt/amp gauge. If bad enough it will pull the idle RPM down a bit.

Your blower motor is bad or the wiring has deteriated to the point of causing a high current draw. A good auto tech (or knowledgeable friend with a DVOM and amp gauge) can diagnose the problem in 10 minutes.

Jun 29, 2015 | 2002 Chrysler Town & Country

1 Answer

Idle adjustment screw for 95 merc Sable 3.0


I will try to explain new electronic injection. There is an adjustment but you have another problem if the idle speed is too high.

When the RPM goes higher, it means you have an air leak, intake runner problem or higher fuel pressure than the stock setting. Or ISC (idle speed control solenoid) Think of it like opening the throttle slightly and letting more air into the motor or gas into the engine.

You can use a pump spray bottle of water with the engine running and mist the seams and vacuum lines and switches. A change in RPM indicates a leak.

Intake runner. These are like shutters inside the intake manifold. Modern intakes can have 2 levels of airflow separated by the intake runners. Sticking runners can let more air into the engine at the wrong time and affect idle.

ISC solenoid Is a valve that regulates airflow for the idle. Soot can cause it to stick in the wrong position. Removing and cleaning the port with WD40 can help.

High fuel pressure. If the fuel regulator sends more gas to the engine, the RPM will increase.

There is a set screw at the base of the airhorn to stop the throttle cable. It is called a throttle stop. There is a hex hole for an allen wrench and it has been coated with threadlock in some instances. Really it is not meant to be turned once the factory sets it. But you can do it. If anything fixes the defects I mentioned, the idle may be too low. I do not have the Specs or know if you have any optional engine. Generally the engines idle between 525-and 600 rpm.

Please rate my info.

Apr 06, 2014 | 1995 Mercury Sable

1 Answer

Engine revs high in park & neutral


you could have a vacum leak some where in the system that can cause high rpm,also if you have a bad tps(throttle position sensor) it can cause this type of problem.you don`t say if you have check to see what is turning on the check engine light and what code is in the computer.this should have been done and may have help to find the problem in the begining.

Nov 04, 2013 | 2003 Dodge Neon

1 Answer

Idle problem integra


check the MAP sensor (manifold absolute pressure). The ECM (car computer) uses that to keep idle at minimum 750 RPM. It's normal for it to run high when cold. These small 4 banger motors typically run hot, and they won't run right IF they're NOT running hot, ergo the idle is usually high when it is cold so as to cause it to warm up quicker. If the RPM's drop below 750, suspect the MAP sensor, &/or ECM.

Apr 18, 2013 | 1995 Acura Integra Coupe

1 Answer

2000 daewoo leganza is running 30000 rpm in high gear on the highway is that right


You mean 3000 not 30000, before you change anything, check the engine with a good scanner.

Mar 12, 2013 | Cars & Trucks

1 Answer

2004 ford freestar 3.9 engine is rough vibration at about 1000 rpm, above and below 1000 rpm it runs smooth


Has the vehicle not been at a repair shop for
a couple of days, so it can be driven & the issues
figured out

All your doing is telling us the place you went can't
diagnose a vehicle

That sadly, is what we try to respond to hundreds
of times a week

When a vehicle runs rough & vibrates, you can not
come on here & say a shop can't find anything wrong,
when you can

The vehicle has to be properly diagnosed

We can't guess & you won't understand any
solutions or be in a position to tell a shop how
to do their job

Mar 04, 2013 | 2004 Ford Freestar

2 Answers

I just purchased it today. The RPM's goes up to 4


You'll want to doublecheck & make sure the Overdrive is turned on. That's a high rpm for 55, even high I believe for Interstate cruising at 65-70.

Possibly get back to the dealer immediately if it's not the Overdrive switch.

There are issues with some models that concern the RPM staying around 4,000 even at idle & under the right circumstances, a transmission won't shift as it should based upon engine & driving signals that the Trans computer uses to determine when to shift.

Check your fluid first & remember, Overdrive doesn't work until the fluid reaches a certain temperature.

good luck

Feb 18, 2010 | 2000 Volkswagen Beetle

1 Answer

High oil pressure


This is a normal occurrence. The oil pressure is directly correlated to engine RPM. your check engine light is related to something else.

Jan 20, 2009 | 1997 Ford F150 Regular Cab

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