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1994 Isuzu 3.2 no. 5. And 2. Having a misfire. And it has no power bad gas mileage what the hall is going on with this car

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  • Isuzu Master
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At 22 years old it could any number of things .get the car scanned for codes and fix the things it finds . also check the catalytic convertor if the plug up the vehicle will not run well

Posted on Dec 22, 2016

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Posted on Jan 02, 2017

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SOURCE: idle low then hi, and gas smell, and bad gas mileage

This should show up easily on the ECU diagnostics computer at a mercedes dealership. Basically your fuel mixture is way too rich causing your car to be heavy on gas, have a raw gasoline smell, and not run right. Something like this can be caused by a defective oxygen sensor (but that usually produces a check engine light) or it might even be a defective ECU. There is really not way of knowing for sure until you do a proper diagnostics where they hook up your exhaust at the same time and do an emmission test. In most cases it's some sensor that needs replacing.

Posted on Aug 28, 2008

  • 51 Answers

SOURCE: 2005 chevy colorado runs rough and gets bad gas mileage.

Sounds like it needs spark plugs and wires, and a fuel system treatment.

Posted on Oct 08, 2008

  • 36 Answers

SOURCE: Random Misfire on 2 & 3

I had a problem with a chevy with random misffires on all cylinders. It was the computer. Fords have very few problems with there computers. Does the check engine come on? Maybe have it scanned. 

Posted on Dec 12, 2008

  • 150 Answers

SOURCE: 2003 chevy venture,cylinder3 misfire

Well you don't say what engine it has. I just had to put a helicoil in the head of a 3.4L 'cuz it had pulled the threads out of rocker arm bolt hole for cyl. #3. Car ran great afterward.

Posted on Feb 19, 2009

honeymokey
  • 3113 Answers

SOURCE: 2004 Isuzu Rodeo 3.5ltr 4X4 hesitation/misfire acceleration

The upper intake gaskets may be leaking. They are made of plastic and metal and will leak air. Do not remove the cover on very top of manifold when changing.

Posted on Jul 24, 2009

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1994 3.2 Isuzu it has a misfire it run like the timeing is fast bad mileage voltage to map is at 4.1 v. Not 5. What do I do


cam belt old? they slip, and run real bad. if at all.
map , key off or running.? running that is wrong voltage.
is vacuum bouncing?

Dec 22, 2016 | Isuzu Cars & Trucks

1 Answer

2004 Isuzu Ascender keeps misfiring,losing acceleration and sputtering when stopped at a red light or stop sign. Changed camshaft position censor.Found oil all over the threads on two plugs


The first thing i would do is replace plugs after checking if wires areok. I thought my fuel pump was going out but all it was, was bad plugs and wires. i replaced them and my gas mileage went up 50%.

Jul 09, 2016 | 2004 Isuzu Ascender

1 Answer

Do you need live vacuum or not for 1994 isuzu p.u. 2.3 engine


You can get away with not having them, being a 94. But you won't get the best gas mileage it could have. Just make sure all the vacuum ports are blocked.

Nov 16, 2014 | 1994 Isuzu Pickup

1 Answer

Burning gas


oxygen sensor faulty, engine out of time, crank or camshaft sensor.

Bad Gas Mileage Causes:
  • Having bad oxygen sensors and air filters can reduce your gas mileage by up to 20%. The oxygen sensors help keep the proper mixture of air and fuel, and having this off balance can be inefficient. The air filters can get clogged and simply need to be unclogged to fix the problem. Air filters need to be cleaned so that the engine can work at its peak performance.
  • Your spark plugs are responsible for sparking combustion in your engine. If they misfire, or are working poorly, this can effect your gas mileage in a negative way.
  • Having bad fuel injectors can cause bad mileage. This is because the fuel injectors are responsible for putting fuel into the engine. If there is a leak of some sort, then less fuel will make it to the engine, and then in turn make it run less efficiently.
  • Having your air conditioner on causes a lot of gas to be wasted in powering the system. If you can, turn off the air conditioner, and ride with your windows open. At higher speed, close the windows though to reduce drag.
  • A common cause of bad mileage is your own driving habits. If you are an aggressive driver, likely you accelerate to quickly. This causes more fuel to be used, and will use up more gas than you need. Same goes for revving your engine. It may sound cool, but it uses up gas for going nowhere.
  • Many people waste gas by idling. Idling is when you have your engine on, but you are parked and not moving. Common places where this occurs is when you are trying to warm up your car in the winter, or while you are waiting to pick someone up. Your car really doesn't need more than 30 seconds to warm up the engine. When it comes to waiting for someone, turn your car off or put it into neutral. Since you aren't moving, you might as well save gas and the environment.
  • The type of motor oil that you are using can also affect your gas mileage up to 12%. You want to use motor oils that are high in reducing friction. Either use asynthetic oil or the oil that the car's manual recommends.
  • The more revolutions per minute you make your engine do, the more gas you will use. The easy way to combat this is to just drive slower. Driving the speed limit of 55 miles per hour is much more fuel efficient than driving at 60, 65, 70, etc miles per hour.

Dec 17, 2013 | 1999 Buick Century

1 Answer

My 2000 rodeo isuzu always has the check eng lite on everyone has said there's nothing rong with it. I am having problems with it's tran it's shifys riff and is slowing down. Il have a full tank of gas...


There can be two problems that can cause you with your gas mileage problem. 1. your O2 sensor is bad - that would make your can slow to response and gives poor gas mileage. 2. your air-mas sensor - its a sensor that is connect to your air filter. if that's bad. it would give you the same slow response and bad gas mileage. The best thing you can do is. Take it to your nearest auto store and have them plug in a diagnose tool(code scanner) and they would tell you exactly what is wrong with your car. And this will not cost you anything.

Dec 18, 2010 | 2000 Isuzu Rodeo

1 Answer

Having a problem with my 1994 eagle talon. no


shake at idle means u have a cylinder misfire or low commpression, here are causes of misfires most commonly seen.

The most common misfire causes on the cars I've worked on have been:
  1. Spark plugs
  2. Spark plug wires
  3. Ignition coil
  4. Fuel injector
  5. Wiring to fuel injector
  6. Timing Belt
  7. Vacuum leak or stuck open EGR
  8. Contaminated fuel or bad fuel pump
  9. Weak compression
  10. Blown head gasket

May 30, 2010 | 1994 Eagle Talon

1 Answer

Starting hesitation problem with 1994 chevrolet


This problem can be associated with many things. First thing to check is plugs, rotor and timing. Check the spark plugs to see if they are dirty or fouled up. Then pull the distributor cap and check the rotor for burnt or fouled ends also check the electrode tips in the cap. If you have noticed your gas mileage going down these would most likely be the problems. If not check your fuel pump relay and fuel filter. If those are good and you are not having gas mileage issues the next most common culprit could be a ignition relay or coil that is starting to go bad. Most of the time a general tune up and timing check will fix a cold start issue.

Feb 03, 2010 | 1994 Chevrolet C/K 2500

1 Answer

I have a 1992 Izuzu Trooper...just hit the 180K mark on mileage...and the O2 light came on...what does that mean?


most likely that your O2 sensor has gone bad. this affects fuel mileage and power you need to hookup a scan tool and have it checked out.

Dec 30, 2009 | 1994 Isuzu Trooper

1 Answer

2004 Isuzu Rodeo 3.5ltr 4X4 hesitation/misfire acceleration


The upper intake gaskets may be leaking. They are made of plastic and metal and will leak air. Do not remove the cover on very top of manifold when changing.

Jul 24, 2009 | Isuzu Rodeo Cars & Trucks

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