Skip the auto shop - Our mechanics make house calls

Q: Doesn't restart after water pump replacement.

asked by on

I replaced the water pump on my 08 5.7 Tundra and after getting it all together and adding some of the coolant it fired up with just a slight hesitation and small squeal from the belt. I ran it for about 5- 10 minutes to get it to temp and then I decided to shut it off. It never got up to temperature - it just barely got to the cold mark on the gauge. When I tried to restart it - it would not start. Not the battery but it just wouldn't turn over

My car has 179000 miles.
My car has an automatic transmission.

A: I’m afraid that you may have a problem with...

I’m afraid that you may have a problem with your timing belt. The big toothed belt that drives the water pump also drives the camshafts. If this belt fails during operation, you can have some pretty serious engine damage. For that reason, Toyota recommends the belt be replaced every 90 thousand miles. Changing the water pump on your truck is not an unbolt-bolt on job. The timing belt must be correctly set up and the tension adjusted properly in order to stay on and stay in time. If you didn’t get this just right, the belt may have jumped a few teeth when you shut the engine off or when you tried to restart it.. When the camshafts are not in time with the crankshaft, there is a possibility of the pistons coming into contact with an open valve which either bends the valve or locks up the engine. Before you do anything else, you should try putting a wrench on the front of the crankshaft and checking to see if the engine can be turned. If it can’t, you may have some bad news. To be sure you have all the facts, contact Your Mechanic to have a technician come to your home and check out your truck to see if that is the kind of damage you have or if is some other problem.

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

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: Sounded weird when I started it, steering busted

Hello, thanks for writing in about this problem! The belt not moving generally indicates that the crank bolt is broken, causing the crank pulley to become loose and the belt to become disengaged. Technical Service Bulletin (TSB) KT20060425001 for...

Q: Over heating, white smoke coming out the exhaust, and no heat just cold air blowing

Hi there. In most cases, a bad or malfunctioning heater is accompanied by an overheating problem. However, if you're temperature gauge is HOT and you've got white smoke blowing from the exhaust, this can be an indication of coolant inside...

Q: Car shakes and makes noise when driving.

Without being able to hear the exact trunk and engine noises it will be difficult to give you an exact diagnosis. In the trunk, make sure there are no free objects floating around the trunk compartment, common items are the...

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...
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...
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.