Latest Forum Post
S-Africa,Uganda,World to join illuminati to be Rich call +27673888284
S-Africa,Uganda,World to join illuminati...
Try to join illuminati to become a Billionaire call +27673888284
Try to join illuminati to become a Billi...
Verified Pregnant Spell to help you have Kids call +27733445570
Verified Pregnant Spell to help you have...
How to bring back your lost Love who left you call +27733445570.
How to bring back your lost Love who lef...
In Usa,Uk,etc best Court spell to Win Court Cases call +27673406922
In Usa,Uk,etc best Court spell to ...
Philadelphia,Usa (No.1) Love Spell to bring Lost Love Back call +27733445570.
Philadelphia,Usa (No.1) Love Spell to br...
Strong Revenge and Death Spells to fight Enemies call +27673406922
Strong Revenge and Death Spells to fight...
U.S.A best Money Spell to solve financial problems call +27673406922
U.S.A best Money Spell to solve financia...
Germany made best qulity SSD Chemical Solution call +27673888284.
Germany made best qulity SSD Chemical So...
S-Africa,Uganda,World to join illuminati to be Rich call +27673888284
S-Africa,Uganda,World to join illuminati...
|
|
woodbutcher
Novice
Mar 6, 2014, 2:37 PM
Post #1 of 12
(1770 views)
|
99 le sabre stalls
|
Sign In
|
|
I have a 99 buick le sabre was running fine till yesterday drove about 15 miles shut it off and when I restarted it stalled when I put it in reverse.It would restart then stall did that several times. I let it sit about 10 minutes it started and ran about 3miles stalled again same routine.got it started drove 10 miles home. Check engine light on retrieved codes P0171 and P0420. It will start and run but I'm afraid to drive it. It's my wifes work car she drives about 15 miles each way to work . Any help will be greatly appreciated.
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Mar 6, 2014, 2:46 PM
Post #2 of 12
(1765 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment. If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money. Every engine requires spark, fuel and compression to run. That's what we have to look for. These are the basics that need to be tested and will give us the info required to isolate a cause. 1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on. 2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on. 3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off. Once you have determined which of these functions has dropped out, you will know which system is having the problem. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
woodbutcher
Novice
Mar 6, 2014, 4:07 PM
Post #3 of 12
(1736 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Sorry ! The car starts now in the driveway I read other places the P0420 code indicated a bad cat. Has this been your experience as well?
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Mar 6, 2014, 4:24 PM
Post #4 of 12
(1732 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Yes, it is usually a bad Cat but it usually has no effect on engine performance though. I would be more concerned about the P0171 which is a lean code. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Mar 6, 2014, 4:25 PM)
|
|
| |
|
woodbutcher
Novice
Mar 6, 2014, 4:46 PM
Post #5 of 12
(1720 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
So a bad cat would not cause stalling or poor performance? The P071 code would likely be the result of a failure somewhere in the cuel delivery system ? The problem seems to be intermitent . The car ran fine till yesterday. One opinion I gpt said it was likely the fuel pump. Where in your opinion should I start to track this down
|
|
| |
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Mar 6, 2014, 4:53 PM
Post #6 of 12
(1718 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Ya - so test fuel pressure as mentioned first reply by HT, T
|
|
| |
|
Discretesignals
Ultimate Carjunky
/ Moderator
Mar 6, 2014, 4:58 PM
Post #7 of 12
(1709 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
You have to get it to act up again and test fuel pressure, spark, injector pulse when it doesn't want to start. Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Mar 6, 2014, 5:03 PM
Post #8 of 12
(1705 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Don't assume it is a fuel supply problem. Lean codes can be caused by dozens of different things. Remember, it can mean not enough fuel or it can also mean too much air and there are lots of ways for that to happen. It can even be a false indication due to a faulty sensor. Diagnostics and tests have to be performed. All that cat code is telling you is that it is chemically not doing it's job. That doesn't mean you have a restriction but it doesn't mean you don't either although restrictions only occur in real advanced deterioration of the cat. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
woodbutcher
Novice
Apr 2, 2014, 7:26 PM
Post #9 of 12
(1618 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Well the car quit running it will start but dies immediately!I had a mechanic over tested fuel pressure and volume both good checked for spark also good after several other checks he advised me to change MAF sensor. Which by the way was only a year and three weeks old. I changed the MAF and the car runs fine. After 2 days on the road check engine lighy is on P0420 code. Still runs fine. Will an O2 sensor cause this code ?
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Apr 2, 2014, 7:44 PM
Post #10 of 12
(1613 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
No, it's nearly impossible for an 0/2 to do that. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
woodbutcher
Novice
Apr 2, 2014, 7:51 PM
Post #11 of 12
(1606 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
I had to change the plennum and upper intake gasket a little over a year ago could the coolant in the combustion chamber then be the cause of the cat failure now ?
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Apr 3, 2014, 2:21 AM
Post #12 of 12
(1597 views)
|
Re: 99 le sabre stalls
|
Sign In
|
|
Yes, it could. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|