Engine shuts off when driving?

Tiny
JOH
  • MEMBER
  • 1992 TOYOTA COROLLA
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
Car starts, but when I press on the gas pedal for more speed car engine shuts off. Why?
Saturday, February 15th, 2020 AT 1:46 PM

39 Replies

Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey JOH,

The first things to check in this instance would be the spark plug condition and gaps.

Have the spark plugs been replaced recently?

I have attached instructions below on how to remove the spark plugs and it also shows specs for the gaps.

If not recently replaced I would advise starting by changing out the old spark plugs.

The next items to check will be the air filter and fuel filter.

I have attached the procedure for replacing the fuel filter, if this has not been recently replaced please also replace this and retest.

The engine air filter I do not have replacement instructions for but it should be easy to identify in a plastic air filter box at the end of the air intake ducting. Check and replace this if dirty.

I would also replace the ignition wires, distributor cap and rotor if not recently replaced also.

Once all of the service items are up to date see what you get with the running fault.

Regards, Joe
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Sunday, February 16th, 2020 AT 8:33 AM
Tiny
JOH
  • MEMBER
  • 11 POSTS
The car has a carburetor not injectors, I did all those things already, but no change.
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Sunday, February 16th, 2020 AT 9:26 AM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey JOH,

Yes i see it is a carburetor vehicle from the information i have here.

Was there any work carried out before this fault occurred?
Does it rev up okay in park?
Is the problem only under load when accelerating?

Can you please check for vacuum leaks?

Guide below to check for leaks.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Since you have a carburetor on this vehicle you will want to check around the base of the carburetor, the intake gasket and everything that is fed a vacuum supply from the intake.

Please check condition of all vacuum hoses and replace if deteriorated.

I would say after that the next step would be to further test for a restriction in the fuel system.

Please check for vacuum leaks and let us know what you find.

Regards, Joe
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Sunday, February 16th, 2020 AT 9:58 PM
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
  • 1991 TOYOTA COROLLA
  • 111,001 MILES
"Hello Ma'am/Sir, I have a 1991 Toyota corolla dx automatic sedan. It Cranks But it won't crank over? I check the fuel line it Got gas also at the fuel pump. It suddenly stop engine turned off on the main road."
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
Also, I change the car battery & change the circuit opening relay it clicks while I turn the ignition key & check all the fuses are still intact All around. I also Clean the distributor cap & plugs.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
https://www.2carpros.com/articles/car-cranks-but-wont-start

Click above link for more information on how to go about.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
Ok I will check on it 1st in the morning. & Then I will provide a feedback to you. Honestly, you ladies & gentleman(s) are the Pure & Simple Auto Mechanic's That Really Help Out People Alot. Keep it the Great Job. Type/Talk to You In A Few Hours From Now. Thanks Much!
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
To: KHLow2008,
I check on the link you gave/type to me & it was legit to check it & experience it out. Also, when I totally took out the timing cover & check the top crank wheel above it didn't move nor rotate when I crank it to see movement? What do I do now? Do I open also to check the lower level of the belt below to see it the timing belt is warp out? & May I kindly know how to do the (TDC) for My Vehicle? Thank you.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
When the top do not move while the crankshaft is being turned, the timing belt is bad. Push at the belt to check for deflection and if it has a lot of slack, the belt has stripped a few tooth.

You would need to remove the crank pulley and lower cover to replace the belt.

Diagram shows the timing marks.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
To: KHLow2008,
Ok will do, also I haven't move it fully will take it apart below to checkout the lowerside of the belt. Do I open also to check the lower level of the belt below to see it the timing belt is warp out? Thank You.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes, you would have to do that.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
To: KHLow2008,
If I don't have a Adjustable Wrench On Me?
Is it Possible to Turn the Gear Wheel on Top that Holds the Timing Belt With A Socket Wrench? To (TDC) it? With The Diagram You Send to Me?

Thank You!
07/19/2013
10pm gmt
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Yes, you can use the bolt holding the cam sprocket to turn the camshaft. Turn the vrank away from TDC by about 20 degrees first and after getting the camshaft timing correct, turn the crank back to TDC.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
MICHAELLSJ
  • MEMBER
  • 27 POSTS
To: KHLow2008

Ok sorry about that. My minor mistake was I took out the belt already & didn't check the top cam if it was aligned? I only align the bottom part crankshaft cam with the marker without the belt attached. All the other parts have been detach, Did I make a Error?

07/20/2013
9:30am gmt
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Question closed.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
JASONZAIDA
  • MEMBER
  • 4 POSTS
  • 1991 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
I have a 1991 Corolla 1.6 automatic, I am having a problem when I accelerate to fast the engine cuts in and out. It never stalls. At full throttle it will run for a second then cut off for a second. I have replaced the fuel pump, tps, distributor and I replaced the speed sensor. There are no codes.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Test the airflow meter-let me know
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-1
Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
JASONZAIDA
  • MEMBER
  • 4 POSTS
Doesn't have one, it has a air charge temp sens.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Airflow Meter On air intake, on left side of engine compartment
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)
Tiny
JASONZAIDA
  • MEMBER
  • 4 POSTS
I have taken the airbox and tube off and there is no air flow meter, is it between the box and the intake.
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Thursday, January 21st, 2021 AT 2:52 PM (Merged)

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