Easy tips

What kind of lug bolt does a Jeep Wrangler use?

What kind of lug bolt does a Jeep Wrangler use? Earlier TJ Wrangler models (1997-06) and YJ editions (1987-95) employ a 5x4.5 pattern. Other Jeeps may use different lug set ups, so our Jeep-specific chart below breaks down vehicle year/model and bolt pattern to help you decide which one exactly represents your vehicle. Do you have to use the same lug nuts on a wrangler? Wheels that don’t have the same bolt pattern as your stock rims will not fit, which is why it is vital to make sure you have the correct information before dropping a bunch of cash...
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How do you put a car in TPMS learn mode?

How do you put a car in TPMS learn mode? Turn the ignition switch to ON/RUN with the engine off. 3. Press and hold the keyless entry fob transmitter's LOCK and UNLOCK buttons, at the same time, for about five seconds to start the TPMS learn mode. The horn sounds twice indicating the TPMS receiver is ready and in learn mode. How do you reset the TPMS on a Dodge Caliber? Without starting the car, turn the key to the “On” position. Press the TPMS reset button and hold it until the light blinks three times, then release it. Start...
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How can I tell if my amp has a blown fuse?

How can I tell if my amp has a blown fuse? Also, listen for any noises the amp makes, since that could also help you determine the source of the problem. Car amps, for example, often have a green power LED light and a red “protect” light. The protect light often means a blown fuse, so you know to check the wiring when you see it. What causes a Mercedes C class to blow a fuse? In older cars, the power wire itself may work loose and chafe on the chassis. The wire insulation wears off, and the bare wire...
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How do I prime my Cummins 12v?

How do I prime my Cummins 12v? After you change the filter, turn the key to the on position, bump the starter and leave the truck in the on position. This will cause the lift pump to run for 30 seconds or so. Repeat 3-4 times and the lift pump will refill the canister and prime the system. What kind of fuel injection does a Cummins 12V use? Unlike Ford or GM’s 8 cylinder diesel pickups during the same time period, the 12v Cummins used direct injection. Direct fuel injection results in greater efficiency by injecting fuel directly into the...
Common questions

How does the clutch on an alternator work?

How does the clutch on an alternator work? An Overrunning Alternator Pulley (OAP) has a one-way clutch mechanism inside the hub that allows the belt to turn the alternator in one direction, but allows the alternator to free-wheel and spin at its own speed when the engine suddenly decelerates. Some replacement alternators come with pulleys and some do not. Should an alternator spin freely? It should turn quite easily but more important is it should be smooth. Very smooth. New bearings will sometimes feel a bit stiff and not turn freely because of the new seals and new grease that...
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What is the p0523 engine pressure sensor code?

What is the p0523 engine pressure sensor code? This specific P0523 engine code is triggered when the PCM sees too high of a value in the engine oil pressure sender/sensor. The oil pressure sensor operates on a 5 volt circuit. What are the causes of code p0521? What Is the Cause of Code P0521? 1 Low engine oil level 2 Faulty oil pressure sensor 3 Disconnected wiring in oil pressure circuit 4 Disconnected wiring in EGR circuit 5 Engine failure What are the symptoms of a p0523 DTC? This code is related to these other oil pressure DTCs: P0520, P0521,...
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What are the requirements for an emissions inspection?

What are the requirements for an emissions inspection? The emissions inspection includes an equipment check, a gas cap pressure test for 1974 and newer vehicles and an Onboard Diagnostics (OBD) inspection for 1996 and newer vehicles. Only diesel vehicles with a GVWR of more than 18,000 lbs are tested for emissions. Why does my car not pass the emissions test? (BTW, if you are disconnecting the battery to turn off the CEL in order to pass the test, this won’t work. Your car’s computer knows the battery was disconnected and tattles on you to the inspection station.) Since this is...
Easy tips

What causes AOD transmission to lose overdrive?

What causes AOD transmission to lose overdrive? My AOD shifts and works fine 1st through 3rd, but has lost overdrive, what could cause this? The two most likely possibilities are an overdrive band problem, or a stuck 3-4 shift valve. If the overdrive band is worn, when the transmission shifts into overdrive it will neutral out and start to rev freely, but not accelerate the vehicle. Can you add overdrive to a 3 speed transmission? It is NOT possible to add the overdrive component to an existing three speed transmission. The main reason you cannot add the OD parts to...
Common questions

What do you need to know about the DPF?

What do you need to know about the DPF? A Quick Guide to the Diesel Particulate Filter (DPF). What is it? The Diesel Particulate Filter (DPF) is a device designed to reduce emissions by removing diesel particulate matter (or soot) from the exhaust gas of a diesel engine. It is required for your vehicle to meet Euro 5 Emission Standards. What do you need to know about the DPF? What does the DPF light mean on a diesel? Diesel particulate filters are intended to reduce soot emissions by as much as 80%. When the filter fails, the DPF (diesel particulate...
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Is a 3 inch lift kit bad for your truck?

Is a 3 inch lift kit bad for your truck? three inches shouldnt hurt anything, maybe a decrease in gas mileage with the larger tires. Do you need a lift for a Dodge Ram 1500? A lift for your Dodge RAM 1500 can make all of the difference, especially if you want to head off road in your truck. A 1-2” lift kit is the exact product you need to provide your truck with a small lift up to ensure you can clear all of the obstacles you want. At American Trucks, we offer a wide variety of 1-2” lift...