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L6-4.9L

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Water pump leak
Hello. A very common concern and almost expected on earlier vehicles, the water pump is generally an easy fix. I will never recommend the use of a stop leak solution on any leak large or small. Leaks need to be...
Question
Rear brakes locking up.
If the ABS light is on, there will be diagnostic codes to access. Those codes will provide enough clues to dig into this. I would first obtain those codes simply because they will give a direct indication of what components...
Question
Power problems
You may have defective ignition module or distributor pip sensor. I would suggest having a mechanic like one from YourMechanic check the problem for you or you can start by replacing the ignition module and see if it helps? You...
Question
Ignition broke off
I believe the ignition lock cylinder is an integrated, non serviceable component in the steering column. The entire column may have to be replaced. I recommend having a qualified technician, like one from YourMechanic, take a look at it and...
Question
Hesitation when accelerating
There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...
Question
Engine takes to long to warm up I've replaced thermostat already and it misses horrible till it warms up its a 4.9 engine
This engine uses a cooling fan clutch that controls the fan speeds on demand when the engine radiator starts to get hot if increases air flow to cool the engine down and slows the fan when it needs to increase...
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engine rattling noise
Claimed by John Hege
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Engine problems
Hi Victor. Thanks for sending your question and posting the videos. It sounds as if you've got a rather serious engine knock, likely a damaged intake valve lifter or rocker arms that are loose. Usually, this type of damage occurs...
Question
Engine noise
There is a few tests that should be done for the engine noise and the first is to find out what cylinder is not working and doing a compression test to see if the noise is a stuck open valve...
Question
Check engine light on.
The testing you did using the CIL may not have been done correctly. During these tests you will need to cycle the clutch and accelerate the engine when the separator codes were received. This is done with a superstar 2...
Question
Airbag
Hello and thank you for your question. Air bags are a useful safety feature. If you live in a jurisdiction where auto inspections are mandated, the vehicle might fail inspection if any essential safety equipment is non functional. If you...
Question
Brake pedal won't come back up once pushed down
Do you have a Ford hydro-boost system? If so, faults in that system can cause no or poor pedal return; to resolve the issue with a hydro-boost type system, please refer to the detailed diagnostic decision tree in the factory...
Question
I just installed a new fuel pump on my 1995 f150 xl.. I had thought the pump was bad.. But come to find out that there is no power
Hi Micah. Thanks for contacting us today. Typically, when you have an issue like this, it's caused by either an exposed electrical wire that is creating a short or a blown fuse/relay. The best advice I can offer is for...
Question
Car clicks once but won’t start!
Considering everything that's been replaced, the most likely cause of this issue is faulty wiring or a loose connection somewhere on a part that has been replaced. My best recommendation would be to go over everything that has been replaced...
Question
Testing pickup coil with ohmn meter
If you can operate the engine to bring it to normal operating temperature, the ohm readings will be more accurate (the following readings are for a hot engine). For the pick up coil (magnetic pick up assembly), connect your ohmmeter...
Question
1995 f150 Possible blown head gasket
It sounds like you may in fact have a blown head gasket. A blown head gasket may cause a number of different symptoms. A head gasket that fails between cylinders will generally cause a misfire and potentially compression leaks from...
Question
replace oil pump and pick up tube
Hi there. Typically when the oil pressure changes based on the type of oil you are using, it's an issue with the pick-up itself. Quite often, the wrong sized or style of oil pump or a pick-up line that is...
Question
Cranks, will start if check engine light goes off. If light stays on, no start
If you have the ignition switch out of the vehicle then you may be getting a switch that is not making good contact internally. I would first recommend replacing the ignition switch and checking connector for any problems in the...
Question
Truck won't stay running no check engine codes
You should first identify if the vehicle has California emissions or not. The difference is one will have a mass air sensor in the air cleaner and the other will have a MAP sensor mounted on the a/c evaporator case...
Question
Dies when you stop pushing the gas.
Hi there. There could be an issue with the throttle body sticking and not adjusting correctly. Check the idle speed when the vehicle is parked in park and then in gear. The engine idle should be around 1000 rpm's in...

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