I am having a problme with my car, sometimes it doesn't start on the first try. It seems to only do it when it's warm. I'm thinking it's the IAC valve. My question, can I clean it and see it that will help any? Also, it looks like a ***** to remove that thing, how hard is it to remove?
Occasional hard starting
- Thread starter EMB2580
- Start date
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NotSoSlowSHO
Gas is $$ WALK!
What EXACTLY does it do? Crank slowly? Crank fast? Take a long time to fire?
Easy to troubleshoot the IAC valve during hard starts.
Depress the throttle pedal slightly duriung cranking if you have a hardstart symptom. If the motor fires right away, the IAC is suspect. If not, look elsewhere.
Easy to troubleshoot the IAC valve during hard starts.
Depress the throttle pedal slightly duriung cranking if you have a hardstart symptom. If the motor fires right away, the IAC is suspect. If not, look elsewhere.
Rockledge
Pluggin' away
1993MTXSHO
Its a Taurus...
my car does that in the winter if i start it up and dont give it enough time to warm up. It wil lstall on me and then not start bcak up unless i let it sit for a minute. I never foudn the problem mayeb its something the cars do. could just be lack of maintence in your case, do you know the maintence history, maybe it needs a 60k?
NotSoSlowSHO
Gas is $$ WALK!
As mentioned already, check the EEC codes
Well, that is 1/3 of the equation. Air.
All you have left is Fuel and Spark.
The next step I would take would be to check the fuel pressure at the rails.
Also, how old are the plugs and wires?
EMB2580 said:
Well, that is 1/3 of the equation. Air.
All you have left is Fuel and Spark.
The next step I would take would be to check the fuel pressure at the rails.
Also, how old are the plugs and wires?
I have no idea of any of the previous maintence, but I don't have oil in my plug wells, the engine runs like butter when I'm driving, no hesitation, or sputtering, so the plugs should still be good plus it has Motorcraft wires.
I suppose it needs a front? 60k, thats water pump and timing belt and stuff right?
I suppose it needs a front? 60k, thats water pump and timing belt and stuff right?
NotSoSlowSHO said:
A Robberstad
SHOser EH!
Had a similar problem that eventually got worse (89MTX). I had to replace the dis ignition module which improved the stalling while running, the camshaft position sensor which made it better still. It wasn't untill I replaced the crank sensor that the problem seemed to subside (hard starts and the water pump is fine). It still has hard starts occasionally but only when I can hear a whine coming from behind the back seat which would likely be the fuel pump. At the moment it happens rarely enough that it's not a real issue.
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