Question about Cars & Trucks
Well oil on your plugs will not help this can limit the spark, if its leaking oil onto the spark plugs replace spark plugs and leads and the cam cover gasket. see how it goes from there, also check for air leaks in the vacuum lines and clean the intake out with some carb cleaner. i would think it should be fine then if these are cleaned and checked.
Posted on Jul 06, 2017
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Posted on Jan 02, 2017
try removing the bolts hold on the valve cover and once you do that take a razor blade and a little lube and careful scrape the old one off.
Posted on Mar 24, 2009
SOURCE: 95 Tahoe 5.7 putting too much fuel in the cylinders. Noticed vehicle running extremely rouch. Changed the plugs, distributor cap, rotor button, intake manifold gasket, fuel filter, fuel pump, EGR va
Pull the vacuum hose off of the fuel pressure regulator and the map sensor and if you see any fuel run out of either of them then replace the regulator.
Posted on Feb 24, 2012
I'm gonna try and help if I can. When you say "hesitate", do you mean when you are stopped and trying to take off there is a hesitation ? As far as "bottoms out", I'm not quite sure what you mean there. Are you talking about an idle problem and the idle drops ? Seems as if you have covered any ignition type problems so I would be leaning towards a fuel system or air induction problem. I have had in a number of cases the fuel injector resistor would get hot and not function properly but most of the time it just goes bad but as I said I have come across a few cases. After the vehicle is warmed up and the problem starts, test the resistor. Below are the instructions on how to do this. You will need an ohm meter (digital). When your vehicle is cold or not quite up to operating temp, it gives it more fuel through the fuel injectors so you may not notice any problems until then which seems to be the case here. In the bottom picture there is a picture of your throttle body. Inside the throtle body (red arrow) there is a "plate that opens and closes. Over time it gets a carbon build up which will send a wrong reading to the throtle position or angle sensor. I would try cleaning the plate and its mating surface to make sure it closes properly. You can use some carb or throttle body cleaner. Where the yellow arrow goes is a vacuum line to the canister. You may want to remove that hose and clean that as well for a blockage. At operating temp while at an idle you should have no vacuum. When you slightly start to idle up or give it gas there should be vacuum at the port. If not it's clogged. After cleaning the throttle body I would disconnect the battery for about 10 minutes so the vehicles computer can relearn its idle now that changes have been made. The last thing is, did you adjust the timing ? Some people don't know it and not sure if you are one of them but a service terminal located inside the vehicle has to be jumped with a jumper wire while adjusting timing to specs. If this isn't done, your timing will be off. Ok, I lied. One more thing and that is to check all vacuum lines for dry rot or leaks. There are many other sensors that could be the cause but I would start here. Is your check engine light on ? If you have any questions you can reply here or feel free to email me directly at email@example.com with all your information and what has been done so far and we can go to other tests to narrow down the problem before you start spending more money on not needed parts. There isn't a cost to you if you email me so no worries there. Don't mind helping. Hope this helps.
Posted on Jun 04, 2012
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