Re: 1995 blazer was running rough, now not starting
If you believe some one put water or bad gas in your tank, then you will have to drain the tank. however, to know if you have water in your gas, first disconnect fuel return line or the line that goes in to the fuel pressure regulator put some fuel in a clear glass and let it sit for 15min.if you see white cloud at the bottom of the glass or water. drain the tank. if not check for spark by removing one spark plug wire and spark plug. place the spark plug in the spark plug wire boot and touch it on the metal part of the car. do not touch the spark plug itself only the booth with the plug in the boot. have some one crank the car over. if you see spark, the spark part is ok. but if no spark, check the coil with a volt meter it should be 3 to 8 ohm if not replace the coil. if ok, check for fuel by removing one spark plug or two and see if they are wet,if wet pump is ok. if not check the fuel pump relay and fuse. if fuse is blown replace. check relay with a volt meter. resistance of the relay should be between 40 to 80 ohm. not mega ohm,if mega ohm, replace. if not , listen to the fuel pump while some one is cranking the car. if you donot hear the pump, disconnect the pump electrical connector and applive 12 volt and ground to the pump by using a jumper or any wire and listen for pump sound. if not replace the pump. if there is sound coming from the pump, it is ok. check the fuel pressure regulator with a fuel pressure gauge or simply disconnect the vaccum from the regulator and try starting the car. if fuel pump is ok and spark is ok. then it maybe the computer or the crank position signal. also check the fuel filter it may be clog.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Sounds like needs a tune up, New spark plugs-wires, could be running on 5 cil. put a new fuel filter on, this helps sometimes. Buy gas treatment at Autozone, you may have water in your gas, run all the gas out and buy gas at a different place than before. Try and get 91 oct. better fuel may help.
the fuel pump motor is lubricated by the gas in your tank when you ran out it sounds like the fuel pump motor seized and is stuck there.There is a little known thing that will get the pump unstuck if it's not burnt up . take a hammer,yep a hammer, have someone hit the bottom of the gas tank while someone cranks the engine,don't be afraid to hit it hard you want the fuel pump to feel the hit and loosen up,make sure your tapping the tank and not the metal strap that holds the tank up! That should get you going,
You need a new fuel filter or fuel pump. Listen by the gas tank while someone turns the key forward to the run position. NOT the start position. You should hear the fuel pump hum for about 20 seconds then stop. If you don't hear it you need a fuel pump. If you do hear it start with a fuel filter and go from there.
there is a vapour purge line from the tank to a charcoal cannister. The line& cannister has been contaminated with liquid gas. When the engine attempts a normal purge from cannister it gets loaded with raw gas, causing rough running and cherck engine light. Replace cannister. Never over fill gas tank, especially on hot sunny days
Your 95 Blazer does not have a carburetor (correct spelling too) It is fuel injected so injectors are used for each cylinder instead of a carburetor. If you run out of fuel and your vehicle is facing uphill when that happens you should have some fuel in the tank left. When leveling at a level position the vehicle will start again. You see the fuel pump is in the fuel tank and fuel is needed at all times to prime when starting. If on a grade the fuel goes to one end if only a gallon or two is left and the pump will **** air only causing a stalling problem I added all this in just so you remember this incase it ever happens to you
have you checked, cady, fuel tank, is it getting the right amount of gas and air? plugs and wires, go with general mantinence first then step up. i have a 85 s10 blazer that was a lemon off the lot but has over 300000 on it and it has the same prob i fix it tempurary by flipping the lid on the breather upside down so it gets more air
yea most american made cars have the fuel pump in the tank.....just drop the tank and replace....not that hard to do but you will need a helping hand...not something id attempt on my own......did you check the fuel pump relay and fuse.....that could be i too....try that first its cheaper....hope this helps :)