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I cant get my 1990 prelude to start i changed the coil fuel pump and fuel cut off relay and still does not start?
Wiki User
∙ 16y ago
An engine needs 3 things to operate, fuel, air ( compression ), and spark ( correctly timed ). Go about this methodically check for spark at the plugs, if yes then check timing, then look for fuel at the fuel rail and then whether it is getting into the engine, is it getting air? are there vacuum leaks? check compression, is the cat plugged? air needs to get out as much as it needs to get in.
If you spray a little fuel into the intake does it start? that is an easy way to tell if it is a fuel problem whether it is a sensor or injector not firing if it is fuel injected or plugged fuel filter, is the new fuel pump coming on? these are all things that need to be looked at.
It looks like you replaced some parts pertaining to both fuel and spark, eliminate one at a time, pull the fuel rail if you have to and watch the injectors fire if it is injected or check a plug for wetness if it is carbureted ( or look down the throttle body for fuel spray before moving on to the next idea.
Once you have completely eliminated one factor it has to be one of the remaining 2.
Think about what happened when it was last running for clues, what were the circumstances that made it quit?
Wiki User
∙ 16y ago
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Chevy cavlier 2001 changed fuel pump and car still want start?
check fuel pump relay!!
1992 Chevy S-10 Blazer will not start changed motor fuel pump and still will not start. Where is the relay switch?
The fuel pump relay on that 92 Blazer with the 4.3 engine is located under the hood, on the firewall, drivers side, if there is more than one relay there, it's the one closest to the drivers fender.
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Can a car start with the fuel pump relay out?
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Where is and how do you change the fuel pump relay on a 1995 Lebaron V6 you changed the fuel pump but the car is still hard to start and stalls but will restart if it sits?
that doesn't sound like the fuel pump relay...sounds like the fuel filter. look on the cross member immediately in front of the fuel tank
What should you check next if you already replaced the battery and the starter and your vehicle still will not start?
Since you changed your battery and starter I'm assuming you are getting fuel and spark is your problem. You should check your starter relay, the wires from the relay to your starter, the wires from your battery to the relay, the wires from your locking cylinder to the relay, and your locking cylinder. You might also check your alternator. You can take it to a parts store to have it bench tested for free.
Your 2000 ranger wont start you checked the fuel pump fuse and changed the relay you also reset the the reset swith still wont start you know you have spark but no fuel?
no fuel means check fuel pump for operation.also make sure fuel filter is not full of gunk
How do you reset fuel pump relay switch?
I have a 2004 ford f150 heritage supercab i changed the fuel pump because it did't have any power and still no power all fuse are good and relay
Cooling fans only comes on at 250 degrees if ac is on or when Coolant temp Sensor is unplugged. changed coolant temp relay still the same?
Might be the sensor, each fan has its own relay
