18

Since you lost power to your 12v accessory socket at the same time as the other systems, I can’t see this as being an computer malfunction. This sounds to me like you have a fault in your main fuse box which is taking out a number of circuits. There may be a bad connection of one of the main fusible links. Unbolting them and cleaning may fix it. You may ...


16

It sounds like the approach to solving your problem so far hasn't been very systematic or "evidence based" – at least the list of parts replaces suggests that the people working on it have been using a "shotgun" approaching, replacing parts in hopes that one (or more) of them will solve the problem. Start off by doing basic checks: Is there hot water ...


14

Number one answer is always Head Gasket. The reason is that there are oil and water passages in close proximity, being separated by a gasket (which might just be flimsy paper or rubber, but is often steel or copper) sandwiched between two pieces of metal with (usually) different thermal expansion rates. This means that any time your engine gets far enough ...


14

There are many leak down testers on the market. You can actually make your own with some hardware store parts and a fish tank. Operation of "most" leak down testers The procedure of operation depends on whether or not you have the cylinder head attached to the engine block or not. If the head is attached, your leak down tester should have an attachment ...


14

It wouldn't be the fuse which is causing the power drain, but the circuit the fuse is there to protect. (This is the reason why the copied area you have posted has 5 "Not Helpful" votes against it.) The fuse is only a conduit. It transmits electricity. When the circuit transmits too much electricity, the fuse heats up, then "pops", not allowing anymore ...


12

Basic Functionality Image In order to illustrate a typical Multimeter The Multimeter is specifically a multifunction tool. By definition it combines several, well defined instruments and multiplexes the controls for simplicity. Inputs Majority of Multimeters will have 3 input terminals. Typically you will only use COM and V/mA/Ohm input (often Black and Red ...


12

There are a few questions in there, so I will try to address them all. The Bueler Time Delay relays are unlike the vast majority of other relays you will find. The difference is that these relays are so-called "smart" relays. They have embedded circuitry that handles the triggering as well as the timing functions of the timed relay. For most relays (i.e. "...


11

1. How do I operate a leak down tester? Directions differ depending on whether it's a one gage or two gage system. It basically gets down pulling a spark plug, getting that piston to Top Dead Center (TDC), threading the tester into the spark plug hole, hooking up compressed air (at a minimum pressure), bringing the cylinder pressure up to a set amount, and ...


11

The computers in a car are constantly monitoring the operating conditions and sensors that are in the car. When a test fails or something goes out of a pre specified range a DTC is set. The biggest misconception about a DTC is that it tells you what to replace, it does not. A DTC tells you what test failed or what parameter went out of range. This ...


10

Much of what makes wheels appear dirty is brake dust. Brake dust is wear particles from the brake pads and rotors (or from linings and drums, in the case of drum brakes). The braking effort in most vehicles is not equally distributed between front and rear wheels--this is by design. Generally the front wheels do most of the braking work, since weight ...


10

I am presuming this is a gasoline engine. If so, the symptoms sound very much like the throttle internals are dirty. If gunge builds up on the butterfly valve, it can restrict the air required for a smooth idle when the butterfly is closed, so the engine ECU needs to open the Idle Air Valve more that it thinks it should have to and you get into a cycle of ...


10

You may have a loose or corroded engine ground connection. The next time you have the electrical failure, leave the ignition switch ON and, using a voltmeter, measure voltage between the negative post on the battery and any shiny clean metal part that is bolted to the engine block. This should always read zero volts, or nearly zero. If it reads something ...


9

When I looked online, here's what I found about the location of the MAP sensor in your car. As always, a picture is worth a thousand words: From looking at other info about that car it's port injected, not throttle body injected (individual injectors on each cylinder, not just one on the throttle body). As far as I know there should never be fuel in that ...


9

Pull the spark plugs and inspect them. Oil-fouled spark plugs will look wet and black.


9

This is what I can think of, in my limited knowledge. Overlaps with some existing answers. Trying to limit to things that aren't obvious, also trying to think of direct physical causes rather than things that may or may not trigger certain ECU software to make an explicit shutdown decision (I assume there's a lot of variation here, so it's kinda hard to ...


9

There are a number of possibilities here, including: bad tire bent rim unbalanced wheel bad shock absorber mount other suspension parts loose/worn/missing steering rack faulty wheel bearing warped brake rotors alignment problem Although you have just put on new tires, there is still a possibility that they weren't properly balanced or that they were, but ...


8

You asked What do these compression figures mean Response Not that much when the engine is cold. Background Based upon the information you have provided I see no indication that the rings are bad. You aren't burning any oil You do not have oily carbon buildup on your spark plugs Bad rings will almost always give you those two symptoms, if they aren't ...


8

If you are hearing the starter turn (typical starter whir), the most probable problem would be the one way clutch has gone out. It's the part of the starter with the teeth on it which engages the starter ring gear. If the solenoid has gone out, the starter motor will not spin, because the solenoid is the part which forces a large copper washer into the posts ...


8

I'm not a diesel mechanic but after a quick search the number one cause of no starts on the 6.0 is lack of oil pressure. The injectors need 500psi minimum to operate. This indicates there is not sufficient high pressure oil to properly operate the injectors. There needs to be a minimum of 500 PSI ICP pressure and it should always match the desired ...


7

If the picture you have attached is similar to the starter on you car, then the power to the starter motor is only delivered if the solenoid operates, so the solenoid must be working. However, the shift lever labelled in the picture, that pushes the pinion forward to engage with the flywheel may be broken, that would explain your problem. Your problem ...


7

You can test your rings and head gasket with a leak down tester Checking your spark plugs as shown in @Zaid's post is the first order of business. You will see it on the plugs. Now, if you do see an oil fouled plug, you will need to identify the source of the oil. Possible Sources of Oil Intake valve guide seal Rings Head gasket PCV valve Any of the ...


7

If you've changed the calipers and the pedal now goes all the way to the floor, chances are that you've introduced air into the system whilst you had the calipers off. To fix this, you need to "bleed" the braking system. At each brake caliper / wheel cylinder there is a bleed nipple or bleed screw. The basic procedure is to start at the wheel furthest ...


7

The bottom line is that if you venture below 10 volts, the battery is dead. Vampire dead. Done. Over. Kaput. There were some magic solutions back in the day to try and "restore" such a battery, but again I refer to my bottom line. You need a new battery. If you were ever down to 2 volts, the chemistry has shifted in such a way that there is no easy ...


7

While this is an educated guess, I'd put money on the fact this is oil coming from the oil filler cap. It appears the cap isn't sealing completely, or possibly the cap isn't screwed on tight enough. If tightening it a little more doesn't work, you'll need to replace the seal on this to get it to stop. The seal itself may be an o-ring type, or it could be ...


7

It would be good to ask the mechanic to explain to you how they are sure that it is the head gasket – head gasket problems often share symptoms with other problems. One way that a head gasket failure could cause overheating would be if the gasket failed between a combustion chamber and the cooling system. Combustion gasses could leak into the water jacket ...


6

Camber is the angle of the wheel on it's vertical axis - If you have wear on the outside of the tyre, then you have too much positive camber, i.e. the top of the wheel is further out than the bottom - the opposite of the diagram below (from Wikipedia), which shows negative camber. For it to be far enough out to cause such serious problems, I would surmise ...


6

The fault you describe appears to be a simple matter of 'parasitic drain' on the battery. Disconnect the battery earth terminal, connect a ampmeter between the cable and the battery post. Run the ampmeter to outside of the bonnet and close the bonnet without trapping the ampmeter wires. Make sure all doors are closed, they do not have to be locked. After ...


6

I pulled some information from another site (jeepz.com). It looks fairly exhaustive in what should be done to fix the dreaded death wobble. I originally thought the death wobble was only due to a bad wheel bearing, but it appears there is much more to it. I am going to pull what it says on the jeepz.com website. Here is what the site says about what exactly ...


6

OP answered his own question in the comments but is not responding. Placing the commented answer as THE answer. OP's Answer Found the problem. The air cleaner housing is electrically isolated by being mounted on rubber bushings. Pinched beneath it and chaffed is the main alternator wire and the oil pressure wire. They were shorted together. The Alt wire ...


6

According to the Fix-A-Flat website FAQ, it's still good once thawed: Yes, if the temperature falls below 32 degrees Fahrenheit it will freeze. The product in the can is not damaged and may be used after thawing. If the product is in the tire, and freezing weather is predicted, then immediately take the vehicle to a qualified tire professional for repair.


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