Q: Timing and cam phaser

asked by on

Took my 2008 expedition in had trouble, long story short had both can phasers replaced timing chain,adjusters,guides and timing gear sprocket replaced valve cover replaced due to a crack and regular maintenance FLUSH rear diff, power steering FLUSH, and fuel injection cleaned. Picked it up after 4 days ran great within 2 hours it had what seem to be a rough idol when at a complete stop, drives great just idols rough. Before repair you could barely feel it idoling at all, 3300 in repairs and now this....

My car has 124000 miles.

Hi there. Assuming, the cam phaser/timing chain component repair was properly performed. The rough idle within two hours of picking up the vehicle may be, something has come loose (ie; a vacuum line). The repair facility should be willing to take a look, I would think, at no charge. Assuming, the check engine light has not come on, leads me to believe, the PCM (powertrain control module)/computer has not recognized the fault. There are several possibilities for a rough idle. If, you receive no satisfaction at your repair facility. I recommend having your vehicle’s rough idle be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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. Timing and cam phaser

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: Turn signals activate brake lights

You probably have the wrong bulbs in the sockets. Your car likely uses an 1157 bulb, a bulb that has been in use since the '60's, but bulbs have been changed and part numbers superceded over the decades so it's...

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,...

Q: Will a very small crack in my intake manifold cause major damage if I wait about 3 months to fix it?

The intake has coolant cross over tubes that directs coolant from one cylinder head to the other. If you have a crack in the intake manifold and it is leaking coolant then when the engine is running and cooling system...

Related articles

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...
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.