High RPM problems with my Cadillac

wberkey
0

Asked by wberkey Mar 19, 2013 at 08:27 PM about the 2003 Cadillac DeVille

Question type: Maintenance & Repair

My cadillac deville is having engine problems. It was having trouble starting (I would have to hold
down the gas pedal and keep the engine idling so it would stay on and not stall out). I took it to a
mechanic and it decided to work fine for him, but he said he cleaned out the throttle body and reset
a few computer codes. After I got it back, I noticed the car seems to jump when I slow down and the
car shifts into 1st gear, but it happens at random. Over the last few days though, the engine has been
idling at higher and higher RPMs, usually above 1000 when I'm stopped. Today, I was driving back
from work, and on the highway it was staying close to 3000. What is wrong? What can I do to fix it?
Can I take it back to the mechanic and have it fixed? Because it wasn't running this bad before he
worked on it.

3 Answers

Steve Sorensen
115

What codes were they? High idle is often caused by an intake leak.

1 out of 1 people think this is helpful.
cadi1999
290

ive changed the tps sensor and the mass airflow sensor on my deville i had the problem of high idle after i changed them after 50 some miles it stopped i was told it has to cycle for the computer to accept the sensor being that he probly unhooked the mass air flow sensor and tps to remove throttle body to clean most likley thats ur problem unless he sprayed cleaner on the mass af sensor if not using the right kind could ruin it causing same problem

3 out of 3 people think this is helpful.
mikegs
0

caddi 02 check the plenum its part rubber part metal device between intake manifold and throttle body

Your Answer

Add photo

Related Questions

DeVille
Looking for a Used DeVille in your area?
CarGurus has 2,132 nationwide DeVille listings starting at $1,650.
ZIP:

Search Cadillac DeVille Questions

Cadillac DeVille Experts

#1 kikero
kikero
Reputation 1,300
#2 Js08016
Js08016
Reputation 620
#3 chassy
chassy
Reputation 570
View All

Related Models For Sale

Used Cadillac CTS"
274 Great Deals out of 11,718 listings starting at $1,995
Used Cadillac Seville"
7 Great Deals out of 483 listings starting at $1,000
Used Cadillac Eldorado"
355 listings starting at $2,995
Used Lincoln Town Car"
44 Great Deals out of 2,213 listings starting at $1,495
Used Chevrolet Impala"
1,215 Great Deals out of 56,785 listings starting at $1,295
Used Cadillac Escalade"
202 Great Deals out of 5,566 listings starting at $2,999
Used Mercedes-Benz S-Class"
197 Great Deals out of 7,836 listings starting at $2,100
Used BMW 7 Series"
144 Great Deals out of 5,060 listings starting at $2,900
Used Buick LeSabre"
99 Great Deals out of 2,495 listings starting at $990

Used Cars For Sale

2005 Cadillac DeVille For Sale
14 Great Deals out of 314 listings starting at $1,990
2004 Cadillac DeVille For Sale
8 Great Deals out of 340 listings starting at $2,800
2003 Cadillac DeVille For Sale
10 Great Deals out of 271 listings starting at $1,988
2002 Cadillac DeVille For Sale
5 Great Deals out of 254 listings starting at $2,000
2001 Cadillac DeVille For Sale
187 listings starting at $3,000