Question about Cars & Trucks
Runs great cold as soon as warm runs bad
What vehicle are you talking about? Is it carburetor or injection system fitted? Is it petrol engine or Diesel? Looking forward for your reply so we will be able to help you.
Posted on Jan 04, 2013
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Posted on Jan 02, 2017
SOURCE: bad idle running when cold
The first thing I would do is a compression test, even if you just do that hole, after that, just put a new plug in because you already have the old one out. If you have decent compression (anything over 125psi) and the new spark plug doesn't solve the problem, I would be very suspicious of the injector. When the engine is cold, the fuel must be atomized really well to support combustion. Typically fuel injectors do a great job of this because they spray a fine mist into the port. This is what makes injected engines so nice to start and drive in the cold weather. However, if the injector gets fouled or plugged, it will squirt a thin stream that does not ignite well unless the engine is hot. Sound familiar?
Posted on Apr 15, 2009
What you need to do is when it stalls out then check to see if your loosing fuel or spark.Check for spark at the spark plugs.don`t just check one.Check all the front 3 a least.If no spark then you probably have a bad ignition module.It is under the coils.Good luck.
Posted on Nov 24, 2009
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