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V8-5.7L

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Jerking apon acceleration
Further diagnosis as to why the check engine light is on should be done. A repeat code for the knock sensor may be caused by a wiring issue or even due to a faulty pcm (power control module). Odds are...
Question
How do you know if the ignition needs to be replaced when you replace the plugs on dodge 5.7 hemi?
Hi there. To determine if the ignition coils need to be replaced, remove one park plug wire at a time and hook it up to a spark tester gauge and set the gauge to 10 thousands gap and increase it...
Question
Reverse gear not working
To rule out a hydraulic fault, you can check for adequate line pressure, using external gauges, while in the various gear positions. If pressure is out of spec. you would then look at the valve body for leaks but it...
Question
My truck won't start. I put a new fuel pump, cam shaft sensor, cleaned my crank sensor, and put a new battery in it. It will crank but not start.
Check the exhaust system for any leaks before the oxygen sensors. This can contribute to having more oxygen in the exhaust stream causing the sensors to register a false reading. If there is no leaks in the exhaust, then check...
Question
If my wheel cylinder is bad and i am replacing how many do i purchase for a 1998 chevrolet 2500
Hello, thank you for writing in. You can replace just one brake cylinder at a time. If one has failed, the others are likely just as worn and may follow suit shortly. If you are in a position to replace...
Question
My truck is getting no spark
Hi there. If you are not getting ignition spark at all, the problem is typically going to be caused by a malfunctioning ignition coil or distributor. Depending on how severe the backfire might have been, it is possible that it...
Question
My 2007 Dodge Charger does not accelerate when i push the gas and the car won't crank either and when it does crank after sitting
Hi There, This can happen for a number of reasons and should have triggered a check engine light. Some of the things that may be causing this could be a failing catalytic converter, a faulty oxygen sensor or potentially a...
Question
I have changed battery. I think I put non compatible battery initially and it's start car alarm loud not turned off with remote ac
As long as the nominal voltage of the battery is 12 volts, it's compatible. Of course, you need sufficient energy storage capacity, too, which in your case is probably around 850 cold cranking amps. As long as you did not...
Question
Burning oil from engine and breathing the fumes within the vehicle
Hi Larry. Thanks for writing in to YourMechanic.com. Anytime you smell oil inside the cab of your vehicle it is a potential safety issue which should be addressed sooner rather than later. In some cases, the smell of oil is...
Question
My 97 yukon turns over but doesn't start I took the fuel pump it's not that
You will need to have the computer scanned to see if you are getting a crankshaft and camshaft sensor signal and giving the ignition spark. If not then replace the sensor that is not giving the signal so your engine...
Question
RPM fluctuates and stalls
What you are describing sounds like a dirty or faulty idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...
Question
Was driving down the road felt like i hit something car started amoking no lights after driving lights came on now wont start
I have never heard of someone running over a water bottle and it spray all over engine. You were obviously misdirected by someone at the parts store and now you have seized motor from overheating the engine. You most likely...
Question
I have a 98z chevy pickup, first thing in morning I cranks it up I hear bubbling noises in beater coil. When I put It in drive it
Hello, thank you for writing in. You are likely dealing with two separate issues. If you are loosing coolant that quickly, then you need to check for any external leaks in the system. If there are no signs of leaking,...
Question
I blew a brake line last night, replaced line.bled brakes from master cylinder, brakes very squishy
Both improper bleeding and a failed master cylinder could be the fault. Running the master cylinder dry can lead it to fail quickly. The primary seal on the master cylinder piston will tear easily. Make another attempt to bleed the...
Question
05 ram 4x4 Vibration in the floor during acceleration, and a vibration in​ steering at cruising speed that goes away when letting off the gas.
Hi there. This sounds like the tires on the front are out of balance and the ball joints are worn and need replaced. A out of balance wheel will cause the vehicle to vibrate and may change location to the...
Question
I have a 1993 GMC Suburban and the key will only turn forward like to start. It is in park but the key will not turn back to stop
Hello, thank you for writing in. Your key cylinder, or ignition cylinder, has likely failed. They can also get dirty and collect debris inside that may restrict them from working properly. The best option is to attempt to clean it...
Question
I just rebuilt my 65 RFE transmission and it works great but am getting the code 4th gear ratio incorrect.
Check the transmission fluid and see if its full and clean. If the fluid is original, then I suggest flushing out the fluid and changing the transmission oil filter. If the fluid is good and has been changed, then the...
Question
Hey there! I can't seem to find the location of my canister purge valve on my 91 Chevy G20 5.7L 350
On these vehicles, the canister purge valve is typically located either on top of, or just in front of, the fuel tank. It has been my experience that they are most commonly found mounted to the top of the fuel...
Question
1970 chevy silverado cranks but will not turn over
With this ignition system you most likely have issues with the ignition coil or the ignition module. Before this you will need to check to make sure the ignition cap and rotor are not burnt and need to be replaced...

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