Skip the auto shop - Our mechanics make house calls

Q: Truck cranks, but doesn't start, even though battery new.

asked by on

My truck will crank but not start. I recently replaced the battery.

Hello, for a car to start it needs 4 things, air, fuel, spark and the engine computer. First thing to check is the inertia switch and make sure the button is pushed down. See your owner manual for location. Check to see if the engine control unit is working, turn the key to the run position and see if the check engine light is on. If the light is on, go and turn the key to the start position and while cranking the light should go out. If the Check Engine Light stays on the computer does not see any rpm signal. If this is the case, electrical test will need to be done to determine the cause. If the light goes out, checking for spark and fuel would be next and should be done with caution and both can be dangerous and should be checked with proper equipment like a spark test and fuel pressure gauge. You may need to enlist the aid of a mechanic to diagnose your starting issue.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car makes noise like howling wind while Idling.

The power steering pump may whine if the fluid level has become too low from a leak or you may hear a squealing noise if the belt has become too slack. While the belt is off would be a good...

Q: Fluid hose comes off transmission to the slave cylinder.

The clutch master cylinder is not relieving the pressure when applied. I recommend bleeding the clutch master cylinder and retest. If the condition continues, then replace the clutch master cylinder. If you need further assistance with your hose blowing off...

Q: Car won't start, but it still has stereo on

Hello. If the stereo is on then the vehicle should have some power but the battery should still be load tested. It is common for the battery to have just enough power to provide some power but not enough to...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...