Skip the auto shop - Our mechanics make house calls

Q: Put in spark plugs and car won't start

asked by on

I just put new coil packs on and put new spark plugs and wires in. The car ran rough and would stall. I was told the eclipse takes high performance plugs so I went and bought Bosch platinum. Put those in and I can't get the car to start. Sounded like it was sucking in air. I need my car for work, can you help me

My car has 127568 miles.
My car has an automatic transmission.

Hi there. This sounds like a concern I’ve seen several times. You stated that it sounded like it was sucking in air; a sign that a vacuum hose or hoses have been left or knocked loose. I suggest you go back over your work and check for loose vacuum hoses; especially the brake booster hose. If the sucking sound is loud enough to be heard easily, it may be the brake booster hose. Once you’ve reconnected the hose, try to start the engine. If the sucking sound is still heard, there are other hoses that could be loose. That much unmetered air entering the engine will definitely cause your no start issue. YourMechanic has several technicians available to assist you with a no start concern.

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!
  1. Home
  2. Questions
  3. Put in spark plugs and car won't 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: Car starts for 2 seconds then dies. However, sometimes it start runs and drive good.

Hi there. Check the fuel pump to the vehicle. A lot of Camry's have this issue and all of them had their fuel pump replaced. There is a short that appears in the fuel pump wiring in the fuel tank...

Q: Why would a truck crank but not start until a plug wire is removed?

The engine may have a shorted spark plug that is shorting the coil out. I would recommend replacing the spark plugs first then replace the coil pack if it continues to not start. If you need help with this, a...

Q: Cel on failing smog i get p0400 then after cleaning egr i get p0421, new air filter, cleaned intake rplaced hoses what else can i

Claimed by Jeff Engstrom

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...