Skip the auto shop - Our mechanics make house calls

Q: Car turns over but wont start. 1999 Pontiac Grand Am

asked by on

I have fuel just to be sure i sprayed starting fluid in the throttle body no luck. i tested the spark wit a light tester showed all where getting spark. i ran a compression test all cylinders getting 175 +/- 3 lbs per cylinder. the security light is not blinking. Crank and Camshaft senors both replaced. what else could be the problem?

My car has 191000 miles.
My car has an automatic transmission.

A: Hey there. You'll need to have the fuel...

Hey there. You'll need to have the fuel pressure tested also. If okay, then you need to see if your injectors are opening to supply fuel. If you have compression, fuel, and spark, then the engine should run. I recommend having a mechanic check the computer and check fuel injection for clogged injectors. You can try removing the injectors and check for clogged passages and screens. If you would like to have this checked, a certified technician from YourMechanic can come to your location to diagnose the starting issue to have this corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car idling roughly and jerking, check engine light came on

Quite a few items can cause a misfire condition in your vehicle. Usually worn spark plugs are the most common cause, so they are usually replaced first before diagnosis can proceed any further. Since yours have been replaced as well...

Q: Traction Off sensor on

The enhanced traction control (ETC) and anti-lock brakes (ABS) are part of the same system. The control module receives inputs from the wheel speed sensors. It then uses that information to control hydraulic pressure to the brakes and control wheel...

Q: camshaft chain

A screw extractor set may work. It depends partially on how clean the break is, how accurate you are with drilling out the bolt, and how tight the remainder of the bolt is. I suggest using a factory approved bolt,...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.