Q: my 1991 camaro v6 is getting spark and fuel but wont start

asked by on

my 1991 camaro v6 is getting spark and fuel but wont start. My uncle and I tried replacing the fuel injectors, checking the ECU, checking the fuse box, and checking the firing order of the pistons, and giving it new gas and oil. It will make a slow weak reving noise then it chokes itself out after about 10 seconds of making the noise . We tried spraying starter fluid directly into the intake and it improved the noise. It made a slightly stronger and slightly faster reving noise. But all that still didn't fix it. We are lost on what to do now.

My car has 123260 miles.
My car has an automatic transmission.

If the EGR valve is stuck open or there is a large vacuum leak(s), that could cause the problem you are having. A severe restriction in the exhaust system could cause this issue. You’ll also want to check to be sure a worn timing chain hasn’t jumped. If you check all "external engine" possibilities and you can’t get it to run, you’ll have to check the chain and timing marks to be sure everything lines up. A cylinder compression test can "indirectly" indicate if valve timing is way off. As far as fuel, you’ll want to check actual fuel pressure on the rail as you could have lower than required pressure due to a faulty regulator, pump, and/or clogged fuel filter. Also, your engine may have a cold start injector, cold start injector time switch, and/or a coolant temperature sensor, all designed to get the engine running initially by adjusting the air fuel ratio for cold operation. If any of these components are faulty, that could explain it. In any event, if you want a quick solution, a certified Mechanic could perform a no-start diagnostic and get the root cause identified quickly, letting you know of the required repair and cost.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. my 1991 camaro v6 is getting spark and fuel but wont start

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car is starting to crank these days But won't turn over.

The crankshaft position sensor on these engines is located behind the crankshaft pulley. The crankshaft pulley on these engines is different than a regular crankshaft pulley and requires a special tool from general motors to remove it. This pulley must...

Q: Q: Car won't start

Hello. If the engine will not crank, then the battery needs to be load-tested to see if it is failing. If the battery is fine, then the starter needs to be checked. If that is also fine, then it may...

Q: My AC is messing up after heavy hauling.

It would be difficult to say for sure that the compressor is the issue without having it inspected by a qualified professional first. I would recommend asking to mechanic you are taking the vehicle to to give the AC system...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...