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Old 03-25-2010, 01:31 AM   #1
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Exclamation Houston We Have A Problem...

Hey everyone,

I have been having a couple issues with my 98 gt and have been trying to figure out what the stinking issue is and figured you all will be able to help best. So late last summer when i would start up my car, it would start and die unless i gave it gas and held the gas down. then it randomly went away. now i have just pulled it out of storage for the spring time and Lois (my car) will not even hold an idle and just dies. I have been reading around and have heard about cleaning the iac, maf. So, i went out and bought some carb cleaner and maf cleaner and took off and sprayed both parts. Neither of which helped. Could it be a vacuum leak? or did i not clean them right?

I really wanna fix this soon because the sooner its fixed, the sooner i can go out driving!!!!
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Old 03-25-2010, 10:07 AM   #2
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Re: Houston We Have A Problem...

You can check for a vacuum leak but also the IAC may need to be replaced. Carb cleaner is not good for the MAF as it may leave residue, use some on contact no residue electronic parts cleaner (the carb cleaner may be ok just double check this).

the IAC isnt expensive so you could try replacing it, does it go away when warm?
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Old 03-25-2010, 10:44 AM   #3
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Re: Houston We Have A Problem...

I actually picked up some maf cleaner separate than the carb cleaner. and unfortunately when warm the same thing happens. I have had a feeling that i would need to be replacing the iac and was just hoping to save a couple bucks.
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Old 03-25-2010, 11:28 AM   #4
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Re: Houston We Have A Problem...

The IAC is a common failure on a 2V. It needs to be the first thing you replace.

Let us now if it fixes the problem.
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Old 03-25-2010, 11:44 AM   #5
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Re: Houston We Have A Problem...

Why is that a common problem? Do they just get plugged up too easily?

I plan on going to autozone today after work if there is time or tomorrow and will come back with the verdict.
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Old 03-25-2010, 11:48 AM   #6
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Re: Houston We Have A Problem...

Not sure if this would be it, but its worth a shot. When I had my 2000 Dodge Dakota truck it would do the same thing when i first bought it. I called the previous owner to see if he had experienced the same problem before and he told me it was because the battery wasn't fully charged. I thought the guy was crazy and i tried all kinds of different things then i finally broke down and tried a known good battery and it worked! maybe from sitting up so long it lost some charge??? not sure if its a Dodge thing or what, but it may be well worth a shot before you would go spend money on parts or anything like that.
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Old 03-25-2010, 12:20 PM   #7
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Re: Houston We Have A Problem...

Hmm. maybe. i do have a complete sound system hooked up in the car. 1000watt rms sub amp. 250x4 watt rms speaker amp. 2 12" type R alpine subs. 6.5" and 5x7" alpine speakers and a pioneer head unit.
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Old 03-25-2010, 07:49 PM   #8
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Re: Houston We Have A Problem...

It doesn't have any aftermarket underdrive pullies does it? Did you buy it used, maybe a previous owner installed them. An underdrive pulley along with the sound system could be causing starting problems, and if it sat for a few months there might not be enough of a charge at all and that's why it didn't start recently...just throwing out possibilities
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Old 03-25-2010, 08:18 PM   #9
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Re: Houston We Have A Problem...

mmm. i dont think so. i got it trailored over from california and the guy was older. How would i be able to check to see i have aftermarket underdrive pulleys? and if there is no charge would i need a new battery? or use one of those battery chargers? oh hottcobra and spectorV i bought my new iac today because even with some odd chance it isnt the issue, it was pretty grimy even after a lot of cleaning and a new anything can never hurt
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Old 03-25-2010, 09:08 PM   #10
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Re: Houston We Have A Problem...

Take a look at the first line of products in this link. If your crankshaft pulley (lower pulley) looks like one of these either in black or aluminum, then you most likely have aftermarket pullies.

http://www.americanmuscle.com/9498-m...ve-pulley.html

You could try and charge your battery with a battery charger. Then use a load tester to see if it's able to hold a charge. If anything, you'll be lucky and the battery will either hold a charge or you'll have to buy a new one.
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Old 04-06-2010, 02:16 PM   #11
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Re: Houston We Have A Problem...

So Della446, what's the verdict, did the IAC sensor correct the issue? What you described is exactly what happened to me back in '04, with my 2001 Cobra. Ford replaced the IAC, and corrected the idle problem.
In a story for another post, they also reflashed my ECM, and in the process, took "the fangs outta the cobra, and gave me back a grass snake".

Hope the IAC replacement fixes your issues!
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Old 04-06-2010, 02:48 PM   #12
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Re: Houston We Have A Problem...

Very common issue is right mine doesn't die but idles low and drops even lower when the a/c is on just haven't gotten around to replacing it yet.
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Old 04-08-2010, 03:45 PM   #13
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Re: Houston We Have A Problem...

Hey guys!! sorry about the delayed response...i have been in Florida but i did go out and buy a new iac and the problem is completely gone! thank you soo much for the help!
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