Question about 1992 Nissan Sentra 4 Door

Open Question

AUTO CHOKE PROBLEM

Hiya, have an 89 sentra with GA14 engine, when running cold it runs fine but once warmed up it will **** around under load or at low revs. also turning corners has the same effect, beleive it has something to do with the auto choke, when looking in the carb at normal operating temp the choke has about 45 degrees of un-restistance play. could this be flapping around while driving? also is it possible to remove auto choke assembly and replace with a manual one with cable?

Posted by on

3 Suggested Answers

  • 11 Answers

SOURCE: have 1987 nissan sentra wagon 1.6 carb.engine the

Check your Ignition timing before anything
check your plugs see what color they are
red or orange means carb is to lean , black
or oil means to rich then you can go from there
and set mixture screws on carb , let me no how you make out .

Posted on Mar 09, 2009

  • 67 Answers

SOURCE: once engine is warm and running the engine starts to choke (either fuel or air) unable to gain speed

INJETOR,S LEAKING OR FUEL PRESSURE REGULATOR.

Posted on Apr 17, 2009

smjdragonfly
  • 79 Answers

SOURCE: Return to idle

Sounds like your throttle is sticking, try looking under the hood for a cable that come out of the firewall. WD40

Posted on Jun 18, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I tried the coil that didn't solve it


Look at this forum for tractors.
I hope it helps you!

http://www.tractorforum.com/f192/ih-674-78bhp-running-under-load-issues-17715/

Another thing that can cause this is the carb. It may be getting too much fuel once it's warmed up. An engine needs more fuel when it's cold than it does when it's warm. Cold engines run inefficiently so they need more raw fuel to fire-up, and stay running. This is all a choke does. A choke plate closes-off the air going into the carb which makes the fuel mixture really rich so it can run. Less air = more fuel. You'll also notice that cars with chokes also idle real high until they warm-up. This fast idle and the over rich mixture (due to lack of air), allows the engine to fire up and stay running. As the engine warms-up and starts burning fuel more efficiently, the choke plate begins to open, which slowly lets more air in and leans-out the air/fuel mixture. Once the engine is warmed-up, the choke plate will be wide open allowing the carb to run as it is supposed to with the correct metering of fuel and air.

Jun 11, 2015 | Cars & Trucks

1 Answer

2004 Mitsubishi Colt engine dies when cold


its a faulty auto choke not sure on model so dont know if its electrical on machanical the used to be a small spring that was conected to the carbs with water running around a housing unit when the water got hot the spring contracted causing the choke to go on or off but i would bet its the auto choke

Feb 13, 2014 | Mitsubishi Colt Cars & Trucks

1 Answer

1991 F350 w/460 cu starts but runs rough until warm.


sounds like auto matic choke problem try a manual choke

Jan 02, 2014 | Cars & Trucks

1 Answer

Automatic choke location car stutters when cold but once warm it runs fine


I assume you have a carby on the engine.Is the auto choke is at the top of the carby and is attached to the top butterfly directly under the air cleaner. Normally a round black cap held in place by 3 screws in a metal ring. Loosen the screws and turn the black cap slightly to close off the butterfly slightly when cold. You will need to press on the accelerator to activate a ratchet cam to allow the choke to work

Jan 19, 2013 | Cars & Trucks

1 Answer

2000 Nissan Sentra 1.8L. High mileage (330,000 plus miles). May take 5min or longer to start cold- acts like it's not firing one or more cylinders. Once it starts there's a big cloud like it was flooded....


Sounds like either it has a bad valve, or worn rings. With the mileage, I would suspect it's just plain getting worn out, when the engine warms up it internal tolerances are better then cold.

Mar 18, 2011 | 2001 Nissan Sentra

1 Answer

Runs rough and misses badly when cold. once warm it runs fine.


This sounds like a problem with your choke. Check that the choke shafts are free and that the choke is able to close when the engine is cold. A spray with penetrating oil will often be enough to free the choke. Otherwise check that the system that operates the choke is functioning.

Jan 31, 2011 | 1992 Toyota Pickup

2 Answers

Have 1987 nissan sentra wagon 1.6 carb.engine the problem is an idle problem when I start in the morning or when its had time to cool down I depress the accelorator pedel to set the choke and high idle cam...


Check your Ignition timing before anything
check your plugs see what color they are
red or orange means carb is to lean , black
or oil means to rich then you can go from there
and set mixture screws on carb , let me no how you make out .

Mar 09, 2009 | 1987 Nissan Sentra Wagon

2 Answers

Engine surges when cold - Once it warms up it runs fine


If carburated, I would suspect a sticking choke, making the fuel mix way too rich.

Jul 02, 2008 | 1997 Jeep Cherokee Country

Not finding what you are looking for?
1992 Nissan Sentra 4 Door Logo

Related Topics:

139 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

705 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

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

Answer questions

Manuals & User Guides

Loading...