Question about 2000 Buick LeSabre

1 Answer

Buick 2000 lasabre got fuel and spark but car won't start , plugs wet when i take them out. engine cranks fine,changed map sensor didn't help.

JEFF MORE INFO THIS BUICK WAS RUNNING FINE,THEN IT WOULDN'T START MECH TOLD OWNER BAD INJECTOR,IT SET FOR A MONTH STARTED UP AND WAS DROVE OVER 300 MILES THEN THE SAME THING WON'T START ANY MORE HINTS ?

Posted by on

  • Jeff Armer Dec 09, 2016

    I would test injector's power and grounding circuit especial . The PCM - engine computer gives a ground for the injectors threw a transistor inside the PCM .There are videos on youtube show how to do this . One bad injector wouldn't cause a no start ! GM had bad injectors some time in the past , know rember when . http://norcal-cobras.com/GTM/gm-tech-lin...

  • Jeff Armer Dec 09, 2016

    When it won't start i would also check to see if there is spark. Pull both plug wires off of a coil an crank the engine , do you see spark jump from one coil tower to the other !Also , does it have a Mass air flow sensor ?

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Buick Master
  • 12,207 Answers

How much compression does the engine have ? Jumped time ? These GM engine's had cam gear made of aluminum with teflon coating and they wear and the timing slips

Posted on Dec 08, 2016

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2000 mercury cougar will not start


If it is getting spark I will assume the timing belt is working.
You say the fuel pump is good, so what is the fuel pressure at the rail ?
Are the spark plugs wet or dry ? Can you get it to try to start by using starting fluid ?
You may have to get someone to check the computer for trouble codes which requires a scanner or code reader.

Apr 06, 2013 | 2000 Mercury Cougar

1 Answer

I have a Toyota camry 2000 L.E it cranks but wont start i replace the Spark plugs and wires fuel pump fuel filter the Starter works i check for sparks the fuel line is good timing belt is good what can it...


is the engine check light on
do you have enough pressure at the fuel rail is the pump running when u swing the engine
is the MAP sensor and crank angle sensor faulty

Mar 24, 2013 | Cars & Trucks

1 Answer

98 Pontiac Grand Prix GT 3.8 won't after engine warms up


crank pos. sensor or maf sensor ck. the fuel press reg. also

Jun 06, 2012 | 1998 Pontiac Grand Prix

1 Answer

Hello. my 2000 4runner v6 has been running rough. when i start it, it runs fine untill it warms up. then it begins to miss. have replaced spark plugs, and battery but didn`t make a difference. diagnostic...


Change your oxygen sensors - they're responsible for feedback that the computer uses to determine the air/fuel mixture. They usually are good for about 60k miles and then start to go downhill. When they get to a point that the computer won't trust them, it ignores them and runs on preprogrammed fuel maps that run excessively rich (too much fuel) to safeguard the engine. You've probably seen a decrease in fuel mileage as well. And the O2 sensors have to be up around 900 degrees before they'll work - the car ignores them until then. That's why you run fine after a cold start but run rough once the car is warmed up.

The O2 sensors you want to change are in the exhaust system between the engine and catalytic converters (the "pre-cat" sensors). There are O2 sensors after the cats as well, but those are used comparatively to determine how well the cats are functioning. The primaries are the ones used for fuel mixture. If it's been this way for a few weeks or so, I'd put new spark plugs in as well - rich fuel conditions can foul them and contribute to the rough running.

Dec 09, 2009 | 2000 Toyota 4Runner

1 Answer

1996 jeep grand Cherokee 4.0L no power at coil got fuel pressure and engine turns over but i have no spark. changed coil / crank sensor / computer / MAP sensor


TRY THE PLUGS ,CAP&ROTOR CHANGE THE FUEL FILTER,STILL NO START,THEN CHECK THE FUEL FILTER NOW, IT SHOULD BE WET,IF NOT THEN YOUR FUEL PUMP IS NOT WORKING

Oct 28, 2009 | 1996 Jeep Grand Cherokee

2 Answers

Changed spark plugs in 97 buick lasabre and now it cranks and runs, but white smoke coming out. Is that blown head gaskets? Does it have anything to do with the fuel pump my mechanic put on 3 weeks ago???


You need to check the oil with the dipstick (wipe in down a few times) to see if it looks like a chockalate milk shake. If coolent has made its way into the oil you have blown head gasket. The fuel pump which is usually in the gas tank in most gm vehicles would not cause white smoke, if it failed you car would not start because your engine would not get any gas to the injectors

Jun 26, 2009 | 1997 Buick LeSabre

1 Answer

Car keep shutting off when i take my foot off the gas


could be throttle position sensor or mass air flow sensor vac leaks or other problems please rate -jeff

Sep 01, 2008 | 1993 Buick LeSabre

Not finding what you are looking for?
2000 Buick LeSabre Logo

Related Topics:

37 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

76682 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides

Loading...