Question about 1995 Chevrolet Camaro

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1995 chevy camaro 3.4 v6 starts sometimes ok and others doesnt start at all,replaced map,icv,egr,coil pack,tps,spark plugs,charged battery,throttle body cleaned,pcv valve checked ok,no water in oil,no oil in water,what else could it be? please help =-[

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  • a_taggart69 Apr 30, 2010

    fuel pressure check out at 40 psi, injectors intermiten firing is the issue, what would cause this...

  • a_taggart69 Apr 30, 2010

    both ignition control and coil packs were replaced, getting fuel to injectors, read online about the vas (vehical security system sometimes malfunctioning) i guess there is a resistor in the key which allows the car to start. when vehical runs it's getting spark/fuel any other ideas

  • brandongi748
    brandongi748 Mar 27, 2013

    i got the same problem it starts then idles and if i give it gas it dies and sometimes it wont start at all

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  • Expert
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I had one like that and found that the fuel pump was weak and when the battery was fully charged the car would start but even charging the cell phone overhight would make it almost and sometimes absolutely would not start. They have to have 35 40 pounds of pressure to fire the injectors and when the battery was the least low the pump could not pump the full amount. Have someone check pump pressure while cranking the engine.

Posted on Apr 30, 2010

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  • Master
  • 2,317 Answers

I would have the ignition control module tested, it's mounted under the coil packs, most parts stores, such as Auto Zone can test it for you. When it won't start, does it have spark? fuel? If no spark to the plugs, I'd go with the ignition control module. If no fuel, I'd check the fuel pump and fuel pump relay.

Posted on Apr 30, 2010

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  • Chevrolet Master
  • 19,396 Answers

Hi.

To start you should check if any error code is stored in the car computer (ECM).
Even if this car has a 16 Pin OBDII connectors, the codes should still be OBDI. Late 1995 Chevys are using OBDII.
Most code reader in commerce read OBDII codes only (introduced in 1995). Since a compatible code reader may be expensive and difficult to find, better having the code reading at a local dealer. The operation is done for a small fee.

If there are no codes, then follow the hints below. I will try to list the most common reasons for car not starting at random.

1 - AIT Sensor: The IAT sensor is used to determine air temperature. When the IAT sensor is faulty the car will have troubles starting with cold, and sometimes hot engine. The Intake Air Temperature sensor is located in the air hose going from the air filter to the throttle body assembly. Here a diagram:

1995 chevy camaro 3.4 v6 starts sometimes ok and - 792533a.gif

2 - Fuel tank cap: The fuel tank cap must allow air out of the tank. If the fuel tank cap does not allow ventilation you experience starting problem.
Testing is done starting the car with fuel tank open.

3-Vacuum leaks: The vacuum system contributes to exhaust gas recirculation. A vacuum leak may give troubles particularly when idling, when starting , or when the engine is cold. This are the situations where recirculated gas make a bigger difference.
Vacuum leaks are detected using an hand tool gauge in the middle of vacuum lines, and heating the vacuum hoses with a blow torch at the same time.

4-Blockage in fuel lines and fuel pump problems: this will also affect driving, but better testing it. a small blockage may only give troubles when the engine is cold. The fuel pressure is tested using the same gauge that measures pressure on the vacuum system.

Here the tool to read vacuum and fuel pressure:Vacuum/Pressure Gauge and Fuel Pump Tester Mityvac 5511.

Regards.






Posted on Apr 29, 2010

  • Ginko
    Ginko Apr 30, 2010

    When the problem is the Vas , the fuel pump get no power. If the fuel has pressure, the problem is not the vas.

    Did you check the IAT sensor as suggested? when it is faulty the mixture is incorrect, and the cylinders will get too much fuel in the mixture and will not spark.
    Did you read OBDII codes? You should at least get misfire codes due to failed start.


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Hi. I have a 99 camaro 3.8l and I'm having some


Sounds like a fuel problem,You did the coils,plug wires and sparkplugs, that should of taken care of the misfire,You may have a EGR that stay open and doesnt close properly and it doesnt set a code why the ECM compensate for the false air.Now this causes rough idle,and smooth cruise with no misfire until you get to stop or idle speed.The map sensor this can also fail when warm especially if the vacuum it is suppose to get is not met. And a failing MAP causes a lack of power. A TPS failing causes a stumble and lack of power but no misfire.cansmo_184.gif

Sep 10, 2011 | 1999 Chevrolet Camaro

1 Answer

I replaced the fuel pump, the EGR, MAP,IAC,sensors and now the engine revs too high at start around 3200 rpm, the revs go down when put in drive to 1500rpm 1991 Chevy Camaro V6 3.1 Everyone here said to...


My experience has been with later model vehicles, but a bad throttle position sensor most definetly causes this type of situation. Two torx screws, opposite side if the throttle body, should have a three wire plug.

Aug 17, 2011 | 1991 Chevrolet Camaro

1 Answer

Won't strat just turns over


There are some possibilities which you will have to check in this case:--

1) First of all check the power and voltage to the battery. With meter it will show exact 12 volt if the battery is charged. If the voltage is less get the battery charged at local auto repair shop. If the battery is internally drained and not getting charged then its time to replace the battery.

2) When you crank the car do you see spark coming at the spark plug? If no then its time to check the spark plugs and coil pack. If the spark plugs are not worn out and looks new then its time to check coil pack. The spark plug gets power to spark from coil pack.

3) The other thing to check in this case is the starter solenoid of the car. If the battery is charged and you start the car then it gives power to the starter to start the car. But if starter is faulty or not connected properly then car will not start.

4) The other thing to check in this case is fuel in the car. If there is fuel in the car then check the blockages in the fuel pump if the fuel pump looks proper then check the fuel filter above the fuel pump.

5) If all the above possibilities mentioned above checked out OK/perfect then it's a electrical issue and the wiring's in the car needs to be checked. The car gets power from the battery to get started. so the wires from battery needs to be checked one by one.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Sep 22, 2010 | 1991 Chevrolet Camaro

2 Answers

Sometimes my car do not work


The car will not start,the car will not work.

There are some possibilities which you will have to check in this case:--

1) First of all check the power and voltage to the battery. With meter it will show exact 12 volt if the battery is charged. If the voltage is less get the battery charged at local auto repair shop. If the battery is internally drained and not getting charged then its time to replace the battery.

2) When you crank the car do you see spark coming at the spark plug? If no then its time to check the spark plugs and coil pack. If the spark plugs are not worn out and looks new then its time to check coil pack. The spark plug gets power to spark from coil pack.

3) The other thing to check in this case is the starter solenoid of the car. If the battery is charged and you start the car then it gives power to the starter to start the car. But if starter is faulty or not connected properly then car will not start.

4) The other thing to check in this case is fuel in the car. If there is fuel in the car then check the blockages in the fuel pump if the fuel pump looks proper then check the fuel filter above the fuel pump.

5) If all the above possibilities mentioned above checked out OK/perfect then it's a electrical issue and the wiring's in the car needs to be checked. The car gets power from the battery to get started. so the wires from battery needs to be checked one by one.

Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Sep 22, 2010 | 2007 Kia Rondo LX V6

1 Answer

My '93 F250 5.8 l Automatic was turning over slowly when cranking to start. Replaced battery no change; Then after sitting for 2 mo. turning key to start produced only a click and dead gauges (battery...


The battery to starter connection has power.the battery is ok.but there are many other possibilities related to battery and its other connections,the spark plugs,the fuel pump,the fuel itself,the sensors(o2 sensor,maf sensor)the valve(IAC valve,egr valve). Most probably the spark plug,the coil pack and crank shaft sensor.This 3 are not getting power to get the car start.

There are some possibilities which you will have to check in this case:--

1) First of all check the power and voltage to the battery. With meter it will show exact 12 volt if the battery is charged. If the voltage is less get the battery charged at local auto repair shop. If the battery is internally drained and not getting charged then its time to replace the battery.

2) When you crank the car do you see spark coming at the spark plug? If no then its time to check the spark plugs and coil pack. If the spark plugs are not worn out and looks new then its time to check coil pack. The spark plug gets power to spark from coil pack.

3) The other thing to check in this case is the starter solenoid of the car. If the battery is charged and you start the car then it gives power to the starter to start the car. But if starter is faulty or not connected properly then car will not start.

4) The other thing to check in this case is fuel in the car. If there is fuel in the car then check the blockages in the fuel pump if the fuel pump looks proper then check the fuel filter above the fuel pump.

5) If all the above possibilities mentioned above checked out OK/perfect then it's a electrical issue and the wiring's in the car needs to be checked. The car gets power from the battery to get started. so the wires from battery needs to be checked one by one.



Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Sep 20, 2010 | 1993 Ford F250

1 Answer

Hard starting,spark plugs,wires ok. Runs ok. 3.8 v6 1995 Camaro 179,000 miles.


Check the primary and secondary resistance of your coil. Coils can fault out when too hot and also take some time to heat up.

Jun 27, 2009 | 1995 Chevrolet Camaro

1 Answer

95 camaro no spark on cylinder 6


Loud popping in the intake means that the unburnt gas exploding in intake.... Check cranks sensor and gear. Gear may dirty or even damage or BAD crank sensor the sensor provides reference for spark signal. So this may be your problem. Contact if you need more help. Thanks for using FIX YA

Jan 23, 2009 | 1995 Chevrolet Camaro

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