Question about 1987 Toyota Celica

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87 toyota celica

I just got my muffler and my catalytic converter replaced not to long ago then all of a sudden my car isn't starting right. When i try to start it i have to hold the key in the on position for a couple of seconds then it will start, it idles at bout 500 and when i push the gas to go it dies. please help if you can.

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Hi

I think your first port of call here is to have the fuel pressure checked out, because it sounds to me as though you may have a faulty fuel pump or fuel pressure regulator.

You could have someone gently clamp the fuel return line to slightly restrict the fuel return and see if that makes any difference, but obviously this would just be a diagnostic measure and not a repair.

Regards

Geordie

Posted on Jun 09, 2008

  • Steve Adams Jun 09, 2008

    After-thought!!



    There is also a possibility that the car may only be running on 2 cylinders and it may be worth also having someone check for sparks.



    Geordie

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1987 Toyota Camry. Idle doesn't drop. Stays very high. No clue why. Also goes through a lot of gas and found out muffler and catalytic converter aren't hooked up. Ideas of where to start?


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Possibly your catalytic converter is clogging up. Short of using a thermometer to check exhaust temp's pre- and post-converter (the temp. after the converter should be about 100 degrees hotter that the temp. before the converter), the next best way is to run car with converter un-hooked and see if that is the problem.
Good luck.

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I have a 2002 Totoya Celica. For some reason when i turn it on, it takes about 2 or 3 tries to start. I know its not the gas pump. I scanned it and it showed that it had 2 problems, 1# the catalic...


Here is some info to clarify things for you. Emissions as you're refering to them are exhaust vapors that are released by your vehicle's combustible engine. A catalytic converter to make it simple speeds up the process to break down and neutralize harmful pollutants released by your vehicle. Now catalytic converters, mufflers, resonators, and your exhaust pipes can become restricted causing your O2 (oxygen) and catalyst monitoring sensors to send data to your vehicle's ecu (computer) to try to correct the problem it is registering. This can cause a number of performance issues. A sensor only does its intended function nothing more it can not tell that the problem is something more than it registers. Now that you've been informed and have a better understanding you mentioned that you scanned your vehicle and had 2 problems then replaced your catalytic converter and are still having problems. Your original problem or root cause may still be present, check your vehicle for trouble codes again and reply to me with that info and I can tell you what to check or replace to fix those faults.

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I have an 1998 Chevy Blazer and need to change the catalytic converter, are the flange bolts welded and can i cut them


Catalytic Converter Removal & Installation 2.2L Engine To Remove:
Catalytic converter 2.2L engine gm-03-22-734.gif

  1. Raise and safely support the vehicle.
  2. Disconnect the heated oxygen sensor (HO2S) electrical connector.
  3. Remove the exhaust manifold pipe flange mounting nuts from the catalytic converter.
  4. Remove the catalytic converter flange mounting nuts from the muffler.
  5. Remove the catalytic converter from the muffler.
  6. Remove the catalytic converter from the rear hanger bracket insulator.
  7. Remove the catalytic converter.
  8. Remove the (HO2S) from the catalytic converter.
To Install:
  1. Install the (HO2S) to the catalytic converter.
  2. Install a new gasket and the catalytic converter to the muffler.
  3. Install catalytic converter to the catalytic converter hanger.
  4. Install the catalytic converter flange mounting nuts to the muffler flange.
    • Tighten to 26 ft lbs (35 Nm).
  5. Install the catalytic converter flange mounting nuts to the exhaust manifold pipe flange.
    • Tighten to 26 ft lbs (35 Nm).
  6. Connect the heated oxygen sensor (HO2S) electrical connector.
  7. Lower the vehicle.
------ Catalytic Converter Removal & Installation 4.3L Engine To Remove:
  1. Raise and safely support the vehicle.
  2. Raise and support the transmission.
  3. Remove the transmission support
  4. Disconnect the left and right pre-converter heated oxygen sensor (HO2S) electrical connector.
  5. Disconnect the post-converter (HO2S) connector. Muffler flange and gasket gm-03-43-731.gif

  6. Remove the catalytic converter flange mounting nuts from the muffler.
  7. Remove the catalytic converter from the muffler.
  8. Remove the exhaust manifold flange mounting nuts from the catalytic converter. Catalytic converter 4.3L engine gm-03-43-735.gif

  9. Remove the catalytic converter from the support bracket insulator.
  10. Remove the catalytic converter and gaskets.
  11. Remove the heated oxygen sensor.
To Install:
  1. Install the heated oxygen sensors as needed.
  2. Install a new gasket and the Install the catalytic converter to the support bracket insulator.
  3. Install the catalytic converter to the exhaust manifold flange. Install the mounting nuts.
    • Tighten to 39 ft lbs (53 Nm).
  4. Using a new flange gasket, install the catalytic converter to the muffler. Install the mounting nuts.
    • Tighten to 30 ft lbs (40 Nm).
  5. Connect the left and right pre-converter heated oxygen sensor (HO2S) electrical connectors.
  6. Connect the post-converter (HO2S) electrical connector.
  7. Install the transmission support.
  8. Lower the transmission.
  9. Lower the vehicle.
prev.gif next.gif ---
It looks like you can cut them and replace them with new bolts and nuts.prev.gif next.gif

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1 Answer

Replace muffler, not the catalytic converter which started to rattle. Stop running, will crank but will not start. can it be the catalytic converter.


if the converter is rattlin then it needs to be replaced because the element inside is broken. if the jeep still does not run try removing the catalytic converter to see if the restriction is too much. should start if the converter is restricted. if it doesnt maybe its whatever caused the converter to go bad in the first place

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