Idle control problem still

[Smalldogg/03mm]

Still having this problem. At a start and when I get off the gas my idle is steady dropping tell my battery light comes on every time... At a cold start it will not stay running.. Now I bought a brand new IAC from ford dealer and still nothing.. Any help appreciated.. Not trying to spend to much don't want to take away from my $$ for my build I'm getting ready to do.. Hope its a quick fix...

[loud2004marquis]

MAF cleaning time?

[Smalldogg/03mm]

I clean that about a month earlier with the k/n.. Guess I will try everything at once.. Hope this work..

[loud2004marquis]

Is there a way to test the alternator?

[TooManyFords]

My guess is a vacuum leak.

[burt ragio]

How many miles are on the car ? How old is the gas in the tank ? Put some good fuel injector cleaner in the tank I like Lucus. I feel the same as mentioned most likely it is a vacum leak. Check the snorkle fittings & vacum lines. As mentioned clean MAf. If you haven't changed the fuel filter it is a good time for upgrade to larger filter. Put a volt meter on on each coil pack & alternator check output reading. Also check plugs.

[RacerX]

Did you check for any dtcs through the odb2 for the helluvit?

[Smalldogg/03mm]

How many miles are on the car ? How old is the gas in the tank ? Put some good fuel injector cleaner in the tank I like Lucus. I feel the same as mentioned most likely it is a vacum leak. Check the snorkle fittings & vacum lines. As mentioned clean MAf. If you haven't changed the fuel filter it is a good time for upgrade to larger filter. Put a volt meter on on each coil pack & alternator check output reading. Also check plugs.

I think this is the best way to go going to find a shop in the morning.. Hope not to much, if it is, he's getting put up until he get a heart(motor)installed.. Thx to the best site around

[SpartaPerformance]

Please tell me you've check battery volts static and unde rload and charging volts

[Green96]

This is probably a stupid question, but have you cleaned or replaced the Idle Air Control Motor. Mine started acting up at around 52K miles. I replaced it, but the new one was idling too high, so I cleaned the original and put it back in. Everything is OK now.

[Blackened300a]

Still having this problem. At a start and when I get off the gas my idle is steady dropping tell my battery light comes on every time... At a cold start it will not stay running.. Now I bought a brand new IAC from ford dealer and still nothing.. Any help appreciated.. Not trying to spend to much don't want to take away from my $$ for my build I'm getting ready to do.. Hope its a quick fix...


This is probably a stupid question, but have you cleaned or replaced the Idle Air Control Motor.

He went that route already.

[Invader]

My guess is a vacuum leak.

I agree, If it is it'll be up under or around the intake, Or it could be a bad T.P.S.

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