1998 Kia Sportage Cranks But Won't Start - Kia Forum
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#1 (permalink) Old 04-29-2009, 09:20 PM
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Default 1998 Kia Sportage Cranks But Won't Start

I've read the thread below about the 2000 sportage that won't start. I have a 1998 kia sportage that has a rotted frame so we just use it to run around the farm in it. The last time we had it out, it ran fine and we parked it. Then the next time we went to start it, it would crank but wouldn't start. We opened the hood and noticed the sensor right in the center of the engine bay on the intake tube (maybe the map sensor?) had the connection snapped off. I guess something hit against it when the hood was closed. I got a new one at the junkyard, installed it, spliced the wires (since the connector was broken as well) and it still would not start. I tried pouring a little gas down the intake and it sputtered.

Is this a fuel problem or could this be from that sensor? It definitely has gas in it, I just put a few gallons in it.
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#2 (permalink) Old 04-29-2009, 09:34 PM
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Welcome to the forum.

There's no way of knowing what sensor it is you're referring to, but I'd start by checking if you have spark on the plugs, fuel, and that the timing belt/valve timing is correct.

The engine can still run regardless of some sensors being disconnected.

Try the KiaTech web site (see my sig for link) to help identify which sensor you are referring to, and this may help us with guessing the problem.

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#3 (permalink) Old 04-30-2009, 05:27 AM
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It definitely has spark since it tried to start when I put gas in the intake, I don't think there is a problem with the timing so it is definitely a fuel problem. I will post a pic of the sensor I am talking about.
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#4 (permalink) Old 04-30-2009, 05:33 AM
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Here is the sensor I am talking about. It is circled in yellow

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#5 (permalink) Old 04-30-2009, 07:32 AM
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Look at the fuel gauge with the key in the on position. If it's registering empty and the low fuel light isn't on, you have a tank level sensor problem. If that sensor is bad, the fuel pump won't come on.

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#6 (permalink) Old 04-30-2009, 08:24 AM
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Quote:
Originally Posted by maxpower_454 View Post
Here is the sensor I am talking about. It is circled in yellow
As far as I can tell, that is the Idle Air Control (IAC) valve - it should run without it but just not idle.
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If you spray starter fluid into the intake and it runs, then start tracking down a fuel delivery problem, such as a bad fuel pump, fuel pump relay, or fuel filter.

If the fuel pump is not coming on, you can bypass the controls with a jumper on the diagnostics plug (DLC) A~B with a paper clip or similar.
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#7 (permalink) Old 04-30-2009, 12:36 PM
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Quote:
Originally Posted by ron1004 View Post
As far as I can tell, that is the Idle Air Control (IAC) valve - it should run without it but just not idle.
Global Service Way

If you spray starter fluid into the intake and it runs, then start tracking down a fuel delivery problem, such as a bad fuel pump, fuel pump relay, or fuel filter.

If the fuel pump is not coming on, you can bypass the controls with a jumper on the diagnostics plug (DLC) A~B with a paper clip or similar.
There is fuel in the tank and it is showin gon the gauge.

How can I tell if the fuel pump is coming on?

So what you are saying is that if the fuel pump is not coming on, I can jumper those 2 plugs and that will allow the fuel pump to come on regardless of the low level switch and other electronics that might be preventing it from coming on?

Where is the fuel pump relay?

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#8 (permalink) Old 04-30-2009, 05:16 PM
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As far as I know, the tank level indication does not prevent the fuel pump from running.

Using the jumper on the DLC plug will make the pump run regardless of any other conditions that could cause the ECU to inhibit running. You should be able to hear the pump running.

The fuel pump relay is in the Fuse/Relay box in the engine compartment.

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#9 (permalink) Old 06-29-2009, 02:50 PM
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Ok, I found out that some relays were missing. I got some from the junkyard and still it will not start. I did the jumper trick and I think I got the fuel pump to run (heard something buzzing near the fuel tank and am almost positive it was the fuel pump) except I don't think it was A-B that got it to work (I didn't have the diagram above with me at the time). Anyway, I heard the fuel pump running and then thought it would start but it didn't, anything else I should try? I didn't try dumping fuel down it again to see if that would make it sputter again. I guess I could try that but why would the fuel pump not run? Could there be something else that is preventing it from starting that can't be fixed by jumping 2 terminals (like injectors)? How do I check the fuel pressure? How do I check to see if the injectors are getting pulses?

i drove the car to where it is sitting now so I don't understand why a few months later the fuel pump will not run normally and it will not start.

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#10 (permalink) Old 06-29-2009, 09:53 PM
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the buzz by the fuel tank is the fuel pump. If you put gas in the intake I don't see how it could possibly start since to get to the throttle body you would need to remove the MAF sensor, the Air temp sensor and the IAC valve. The fact that you got it to sputter does show that it is getting spark. You're assesment of a fuel dellivery problem sounds about right to me. You could have crap in the filter or clogged injectors. Replace the fuel filter, blow out the lines, and clean your injectors.

That IAC valve is just an Idle air compensator. It regulates your idle air intake when there is a load on the engine components at idle. (AC , heater, headlights, power steering pump...) You should still be able to idle without it, it will just be rough without it. It shouldn't affect the engine when your accelerator is depressed, Or at cold idle when the choke plates are open.
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