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The engine stopped running why?

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
When it could not be started, you need to find out what is missing.

Go to link below for more information.

https://www.2carpros.com/articles/car-cranks-but-wont-start
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Monday, February 22nd, 2021 AT 10:21 AM (Merged)
Tiny
PATRICK ENGLE
  • MEMBER
  • 1 POST
  • 1993 TOYOTA CAMRY
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
Hello, recently purchased this car it is the LE model with a 2.2. Car refused to start intermittently one day after purchase, fuel pump replaced after engine started then shut off with ether. Car ran well for one week with no starting issues then intermittent issues started. During the week after pump was replaced. Humour injector injector cleaner was used in which an occasional miss was observed after using. The pump was jumped using the diagnosis junction under hood during no start and worked as did the main relay click during no start. Plenty of fuel pressure from pump as noted from filter during no start. The injection pulse was noted during engine running whereas no pulse observed during no start. The number one cylinder appears to burn lean (no carbon buildup on plug compared to other three). After engine run ohm reading was normal on number one injector 13.8 but was 12 during no start. Vehicle was driven two hundred miles with minimal missing on the highway after using Techron and Humour fuel cleaners. Car was driven additional one hundred miles following day with no issues. Next morning vehicle cranked with no start unusual since it would start without issue after sitting overnight. Fuel pump checked, fine, relay fine, ohm on number one injector low. The injector was disconnected, battery disconnected to reset ECU but would not start crank only. Up until today no indication from check engine light of a code. When manual diagnosis was done check engine light and overdrive light flashed continuously with no pause. Vehicle normally starts after sitting and cooling currently no start with code light either flashing or continuously on during attempted start. Do not know if the injector or injectors are completely clogged or the ECU was completely shorted, during drives to clean injectors no code noted or performance issue noted other than the first day.
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Monday, February 22nd, 2021 AT 10:25 AM (Merged)
Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
I am betting that there is no injector pulse when it is not starting. If so, you probably need a camshaft position sensor or there is a problem in the wiring to it. To test, there is a set of lights for the job. Some people call them "know it lights, " but I do not know what they are actually called. I do believe that the auto parts stores have them in their loan-a-tool programs.

So get one of those sets, take a light and simply plug it in to an injector. No light means no injector pulse.
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Monday, February 22nd, 2021 AT 10:25 AM (Merged)
Tiny
YERINNE
  • MEMBER
  • 1 POST
  • 1993 TOYOTA CAMRY
  • 4 CYL
  • AUTOMATIC
Hi: Toyota camry 1993 starts but doesnt turn on. Seven mechanics looked and didnt know other said is the ignition. Im scared to buy an expensive part and the car still the same. Please help me. Thanks
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Monday, February 22nd, 2021 AT 10:26 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You need to localise the problem to rectify it.

Our diagnose link has a lot of information on what to lok out for.

https://www.2carpros.com/articles/car-cranks-but-wont-start

The above should be helpful.

Let me know what you find.
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Monday, February 22nd, 2021 AT 10:26 AM (Merged)
Tiny
YALI_00
  • MEMBER
  • 3 POSTS
  • 1993 TOYOTA CAMRY
  • 200,000 MILES
My car doesn't start. It was fine the last night I drove the highway. I drove it almost everyday and there was no problem until that morning. When I turn the key it cranks but the engine won't start. I've already checked the gas, battery and oil. The oil pressure sign was on but it could means nothing, I don't kmow. What is wrong with my car? I need it quick for school starts soon
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Can you hear the fuel pump turn on with the ignition? Can you check for spark and injection pulse? Let me know what you are able to check, a scan will also be a great help at this stage to check for any unresolved fault codes.

Mark (mhpautos)
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
YALI_00
  • MEMBER
  • 3 POSTS
Thank u for the reply, no I cannot hear the fuel pump turn on with the ignition at all, there was only one kind of sound and when I let go of the key, it was total silence. I guess I can ask my friend to check for spark and injection pulse. I know my car needs to be checked by a mechanic, its parked outside can I just call a mechanic to come and check? Or do I really have to call a tow truck? What could possibly be wrong with it?
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
YALI_00
  • MEMBER
  • 3 POSTS
Oh and, that morning it seemed to be fine and I turned the car on for a couple minutes before I drove off for about 30 feet, then the car just automatically slowly stopped. I tried to turn it on again and I remember I heard the fuel pump for the first couple of times, but the car would just slowly stop. And now when I turn the key I do not hear the fuel pump anymore
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
The fuel pump needs replacement
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
JOY BLACK
  • MEMBER
  • 1 POST
  • 1992 TOYOTA CAMRY
  • 2.2L
  • 4 CYL
  • AUTOMATIC
  • 250,000 MILES
I was driving and came to an incline and halfway up it lost power and never regained it. Then it started sounding like a hissing sound almost like a hose was off but can't find one missing and when I made it to a friends driveway close by soon as I turned in it quit running on me. The car will crank back but when you give it gas it spits and sputters and cuts off.
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi and thanks for using 2CarPros.

Many things can cause this. However, based on your description, the first thing I would check is fuel pump pressure. If it is weak, this can be the result.

Here is a link that shows in general how this is done:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here are the directions specific to your vehicle. The attached pictures correlate with these directions and the manufacturer's specs are included.

FUEL PRESSURE TEST
Pressure Gauge Connection

Picture 1

- Check that the battery voltages is above 12 volts.
- Disconnect the cable from the negative (-) terminal of the battery.

CAUTION: With Airbag, work must be started after approx. 30 seconds or longer from the time the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected from the battery.

- Put a suitable container or shop towel under the fuel filter.
- Remove the union bolt and two gaskets, and disconnect the fuel in let hose from the fuel filter outlet.

- Install the fuel inlet hose and pressure gauge to the fuel filter outlet with three new gaskets and the union bolt.

Torque: 29 N.m (300 kgf.cm, 22 ft.lbs)

- Wipe off any splattered gasoline.
- Reconnect the battery negative (-) cable.

Installing Jumper Wire

Picture 2

- Using a jumper wire, connect terminals +B and FP of the check connector.
- Turn the ignition switch ON.

Reading Pressure Gauge

Picture 3

- Measure the fuel pressure.

Fuel pressure:
265-304 kPa (2.7-3.1 kgf/cm2, 38-44 psi)

- If pressure is high, replace the fuel pressure regulator.
- If pressure is low, check the following parts:

Fuel hoses and connections
Fuel pump
Fuel filter
Fuel pressure regulator

- Start the engine.

Checking Fuel Pressure - No Vacuum To Regulator

Picture 4

- Disconnect the vacuum sensing hose from the air intake chamber and plug the air intake chamber outlet.
- Measure the fuel pressure at idling.

Fuel pressure:
265-304 kPa (2.7-3.1 kgf/cm2, 38-44 psi)

Checking Fuel Pressure - Vacuum To Regulator

Picture 5

- Reconnect the vacuum sensing hose to the air intake chamber.
- Measure the fuel pressure at idling.

Fuel pressure:
206-255 kPa (2.1-2.6 kgf/cm2, 31-37 psi)

- If pressure is not as specified, check the vacuum sensing hose and fuel pressure regulator.
- Stop the engine.
- Check that the fuel pressure remains 147 kPa (1.5 kgf/cm2, 21 psi) or more for 5 minutes after the engine is turned off.
- If pressure is not as specified, check the fuel pump, pressure regulator and/or injector.
- After checking fuel pressure, disconnect the battery negative (-) cable and carefully remove pressure gauge to prevent gasoline from splashing.
- Connect the fuel inlet hose with two new gaskets and the union bolt.

Torque: 29 N.m (300 kgf.cm, 22 ft.lbs)

_____________________________________________

Check this first and let me know the results.

Take care,
Joe
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Monday, February 22nd, 2021 AT 10:28 AM (Merged)

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