when I turn on my ac my rpms drop all the way down and the car starts to shake. what can it be?

10

Asked by Aug 07, 2013 at 09:33 PM about the 1999 Honda Civic Coupe EX

Question type: Maintenance & Repair

2 Answers

6,835

At what speed (Idle, back road or highway) ? Sounds like the A/C compressor is pulling a bit of a load on the engine when it is told to "engage" electronically, which causes the RPM's to drop. When was the last tune up done on the auto ?

255

there is a rpm solenoid that raises the RPMs when the AC comp. comes on. this is another thing to check GLWR

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Why would the AC cause the car to run and drive poorly? 10 answers

    The car has 161k miles. Runs fine with the ac turned off. When the ac is on, the car has low idle rpm and has trouble accellerating. 1993 Honda Civix Dx coupe

    1993 Honda Civic Coupe

    -

    Maintenance & Repair

  • Anyone have a/c problems with Honda Civic? 262 answers

    We have two 2010 Honda Civics and have this problem with both of them! After the car sits for a while in the hot sun, the a/c won't work when you start the car. It does start working again after you d...

    2010 Honda Civic Coupe LX

    -

    Maintenance & Repair

  • Shaking break peddal when breaking hard? 24 answers

    I have noticed that my 2006 Civic's break pedal will shake when I break hard. It feels as if part of the break pedal is dragging against the ground. This only happens occasionally when I break hard, b...

    2006 Honda Civic Coupe

    -

    Maintenance & Repair

  • Car shakes and sputters at certain RPM. 3 answers

    If I am going up a hill when I accelerate to maintain speed the car shakes and sputters when it hits around 3800 RPMs and I have to back off the gas pedal. Honda dealer had me replace the solenoid an...

    2004 Honda Civic Coupe EX

    -

    Maintenance & Repair

  • Truck Shakes and Engine is Loud 1 answer

    I have a 2007 Honda Pilot and all of a sudden as I turned into a parking space my truck started shaking and the engine was running loudly. I turned the car off for about an hour and left. The chec...

    2007 Honda Pilot 4 Dr EX-L

    -

    Maintenance & Repair

Search Honda Civic Coupe Questions

Honda Civic Coupe Experts

#1 deb5deb5deb5deb5deb5
deb5deb5deb5deb5deb5
Reputation 1,580
#2 elmerenzo
elmerenzo
Reputation 1,490
#3 kd5qhr
kd5qhr
Reputation 990
View All

Related Models For Sale

Used Honda Civic
491 Great Deals out of 87,487 listings starting at $1,499
Used Honda Accord Coupe
143 Great Deals out of 10,146 listings starting at $1,900
Used Honda Accord
714 Great Deals out of 86,717 listings starting at $699
Used Toyota Corolla
670 Great Deals out of 71,668 listings starting at $1,950
Used Ford Mustang
380 Great Deals out of 46,804 listings starting at $1,500
Used Toyota Camry
804 Great Deals out of 89,195 listings starting at $950
Used BMW 3 Series
952 Great Deals out of 33,268 listings starting at $1,000
Used Chevrolet Camaro
161 Great Deals out of 32,677 listings starting at $1,995
Used Nissan Altima
853 Great Deals out of 78,302 listings starting at $1,677

Used Cars For Sale

2015 Honda Civic Coupe EX For Sale
6 Great Deals out of 184 listings starting at $11,354
2014 Honda Civic Coupe EX For Sale
9 Great Deals out of 246 listings starting at $11,999
2013 Honda Civic Coupe EX For Sale
5 Great Deals out of 126 listings starting at $9,998