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My rpms zoom up when going only 30 to 40 mmph is it the control modular unit causing that or what else can it be ?

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1 Answer

When car is in park or stopped the rpms fluctuate below 1 and car stalls out.


Idle speed is normally controlled by the idle air control motor. These units get dirty and fail, but can often be cleaned and restored to normal function. You will need to remove the unit to clean it, but be careful not to damage the plunger and seat. Use carb + choke cleaner and maybe a small screwdriver (carefully), then blow unit out with compressed air. Replace gaskets as needed. Also low idle can be caused by vacuum leaks, bad O2 sensor, clogged exhaust (cat converter), dirty MAF, bad coolant temp sensor.

Jun 15, 2015 | 2003 Buick Park Avenue

2 Answers

How to change ignition control modular


there are three types you need to know what one it is, one type is on the dispack and the other 2 fit to the distributor one type has 3 connectors and other type has 1 connector, dispack best just to change the whole unit as the pins can brake if you remove the modular of it.

Jan 03, 2015 | 1994 Chevrolet C1500

1 Answer

My pickup runs at an extremely high rpms. it is a 93 F250 powerstroke turbo diesel any thought on what i should try?


check the timing of the pump as pump timing if incorrect will cause engine failure . High rpms may be from the accelerator control not being assembled properly on installation or if ECM controlled the connection to the pump is not correct. Looking at ford diesel rpm specs , some fords run to 6500 rpms while others are at 4500 . As you have not stipulated the engine size or capacity ,it is hard to advise other than to go on line to googlr - type in ford max rpms for your engine and see what it is suppose to be

Dec 27, 2014 | 1993 Ford F250

1 Answer

Airbag light on 2001 sonata, also small modular under pasanger seat broken cover, and under driver seat there is a wonnector that does'nt go anywhere. thank's


First the airbag system can be dangerous to work on and it is usually best to consult a professional since to accidental inflation of an airbag can cause injury, do not cut any wires and disconnect the battery when working on the system.
When the airbag light is on it disables the airbag system inmost vehicles meaning if there is a collision the airbags will not deploy. Some autoparts stores can check codes which is where to start with the warning light on and modular connected check the airbag trouble codes with this information it will be easier to diagnose the system and the cause of your problem. I hope this helps

Feb 11, 2014 | Cars & Trucks

1 Answer

Transmission not shifting into 4th gear


Dirty Shift Solenoids

Have to Google your trans unit or model
& see what the inside looks like, as far as
shift control items go

It may not be going into converter lock-up
either,that is some high rpm that will overheat it
also & ruin it for good

Mar 07, 2013 | Cars & Trucks

1 Answer

Rpms fluctuate while driving


Try cleaning the mass air flow sensor...and also the idle air control vavle...This is your next least costly attempt to fix...had similiar problem...Hope this helps.

Mar 19, 2012 | 2003 Chevrolet Silverado 1500

1 Answer

Power control modular


its underneath the coil packs, just remove the coil packs and unplug the wire loom,thats it

Jan 24, 2012 | 1995 Buick Riviera

1 Answer

Car will start and idle well, idles fine in the different gears. Then when you go to accelerate, about 1100 RPMs it starts surging up and down, but if you go up towards 13-1500 RPMs, it rides smooth. What...


Thanks for choosing FixYa and welcome to the site. I would say it is either the idle control sensor or the map sensor. Usually, with the map sensor, you experience the car stalling out. If this is not happening, I would say change the idle control sensor. If you have a check engine light on, take it to Autozone and have it scanned to make sure.

Apr 19, 2011 | 1996 Dodge Intrepid

1 Answer

Rough idle ingnition


does the tach jump from 500-1000 rpms ? check engine light on? if so check the 02 sensor, ignition modular, or crank sensor

Apr 30, 2010 | 2003 Chevrolet Cavalier

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