Question about 1995 Cadillac DeVille

Open Question

Etest faiil on 95 deville for hc idle - 1995 Cadillac DeVille

Posted by Anonymous on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have 1994 chevy 1500 it failed smog at idle . the hc ppm was100 max and i was putting out 848 what should i do. the high idle test at passed fine max is1.0 and i was.95


May not be much you can do yourself without a scanner and an exhaust gas analyzer.
High HC is too much fuel. So it could be a leaking injector, O2 sensor, air flow problem, or something else.
It could also be not up to normal operating temp due to an open thermostat.
Without the proper equipment you really have no way of knowing whats coming out the tailpipe.

Apr 08, 2016 | Cars & Trucks

1 Answer

2000 Cadillac Deville DTS 4.6L HO Northstar


Well, I don't think so. The pressure sensor will throw its own code (0450, 0451, 0452, 0453, or 0454). And likewise, the fuel level sender or sensor could also throw its own codes (P0460-P0464).

I'm not sure the level sensor and the pressure sensor are linked together. They are separate on a 2005 buick century, the pressure sensor being at the top of the tank located on the fuel pump module, but Cadillac: anything is possible.

Since you replaced the purge solenoid, there may be a problem in the circuit. The purge should have battery voltage to it with the key on. The ECM will ground the circuit internally when the purge is wanted. One symptom of a purge valve that isn't working or stuck closed can be a whooshing sound when the fuel tank cap is opened, indicating excessive pressure in the tank.
A shop's scan tool could be used to command the purge valve on to check it.

Sep 09, 2014 | 2000 Cadillac DeVille DTS

1 Answer

My air fluctuates. When I'm idling its warmer than when I'm driving. While I'm driving the air drops to 43 to 45 degrees. While idling it climbs to 65to70 degrees. What might cause this problem on a 95...


Normal, its called air flow. When idling you rely on the radiator fan only, when driving the air is rammed through the radiator. as long as it doesn't clime into the red at about 90' when idleing you are OK.

May 21, 2014 | Cars & Trucks

2 Answers

Golf 1.4 2003 very high emissions


Replace your oxygen sensors.
murf427

Aug 29, 2012 | 2003 Volkswagen Golf

1 Answer

My 95 deville makes a rattling sound from the engine compartment after the engine is warm


Is this during idle or while driving ? My older GM cars were prone to collapsed hydraulic valve lifters....usually from wear or lack of oil pressure to the lifters while idling.
If you hear this only while driving or accellerating.... it's likely a spark knock sound (Engine internal damage likely if you leave this situation unchecked) It may be a 'timing' problem. Get help soon !

Sep 06, 2010 | 1995 Cadillac DeVille

1 Answer

Problem bad hesitation when cold


You should change all 4 O2 sensors, it will run better :)

Also check your compression. Not enough compression on any one cylinder will cause oil blow-by and cause it to fail emissions. Also, the EGR valve can cause the same symptoms.

Sep 13, 2009 | 1997 Chevrolet K1500

2 Answers

1996 jimmy failed an emission test


Did you change the air filter. The fuel filter will have no impact on emmision's but the air filter is a very common problem.If you usually drive it at low rev.'s then before you send it for emmisions test you will need to put it in a low gear and floor it for about a mile the reason is when it is being tested the engine is reved up to around 3500 rpm and any build up of unburned fuel or oil in the exhaust system will put up the emmisions reading.

Aug 19, 2009 | 1996 GMC Jimmy

1 Answer

Idle problems with cadillac


dee if the linkage is binding first, clean the throttle body and lubricate all moving parts if this doesn't solve it an accellerator cable may need replacing

Jun 29, 2009 | 1992 Cadillac DeVille

1 Answer

Idle control system


A quick trip to the dealer would confirm but it sounds like your I.A.C. (idle air control motor) may be broken. I don't remember it being too expensive when I replaced it on my 95 caddy de ville. Also check out these symptoms-
Is your car idling properly?
Does it get rough under load or other conditions?
Any idle or off idle irregularities at all?
If so these symptoms may be linked to the I.A.C.
-Dynami

Mar 31, 2009 | 1997 Cadillac DeVille

Not finding what you are looking for?
1995 Cadillac DeVille Logo

Related Topics:

22 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

Marvin
Marvin

Level 3 Expert

85223 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...