My 2004 Deville CTs Northstar has problem with engine dying when I stop to turn and the engine slows to idle speed! The extra load of the power steering pump overloads the idling engine! Any theories?

Asked by Nov 15, 2016 at 08:20 PM about the 2004 Cadillac DeVille Base

Question type: Maintenance & Repair

My 2004 Deville CTs Northstar has problem with engine
dying when I stop to turn and the engine slows to idle
speed! The extra load of the power steering pump
overloads the idling engine! Any theories?

2 Answers

61,275

There's an idle speed up switch on the power steering line. When turning the steering wheel hard as in a parking or low speed turning maneuver the increased pressure on the power steering hose activates the switch to send a signal to the computer to speed up the idle about 50 RPMs to compensate for the added load and prevent stalling. HTH. -Jim

1 out of 1 people think this is helpful.

I discovered today it also does it when idling and I apply the brake! Idle speed is 750 rpm!

Your Answer

Add photo

Related Questions

Search Cadillac DeVille Questions

Cadillac DeVille Experts

#1 kikero
kikero
Reputation 2,030
#2 Js08016
Js08016
Reputation 1,640
#3 Cynthiasmith
Cynthiasmith
Reputation 1,480
View All

Related Models For Sale

Used Cadillac CTS
312 Great Deals out of 12,672 listings starting at $1,495
Used Lincoln Town Car
29 Great Deals out of 2,074 listings starting at $1,995
Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Cadillac Escalade
308 Great Deals out of 10,695 listings starting at $1,900
Used Chrysler 300
403 Great Deals out of 22,147 listings starting at $1,000
Used Cadillac STS
43 Great Deals out of 1,196 listings starting at $2,995
Used Mercedes-Benz S-Class
183 Great Deals out of 6,386 listings starting at $2,999
Used BMW 7 Series
164 Great Deals out of 5,944 listings starting at $3,400
Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000