96 ex stalling while idling
A friend of mine has a 96 ex and says when the engine is hot and he is
idling at a long traffic light sometimes the engine will just start idling really rough and then stall out. He starts the car and it's ok. Sometimes for the rest of the day. This happens more when it's hot. The car has 120K. No check engine light on and scanner shows no codes. What could be causing this? Thanks Larry |
Re: 96 ex stalling while idling
In article <RRkGd.9019$J36.1687@fe39.usenetserver.com>, "lrego"
<lrego@alltel.net> wrote: > A friend of mine has a 96 ex and says when the engine is hot and he is > idling at a long traffic light sometimes the engine will just start idling > really rough and then stall out. He starts the car and it's ok. Sometimes > for the rest of the day. This happens more when it's hot. The car has > 120K. No check engine light on and scanner shows no codes. What could be > causing this? Thanks Larry There are several possibilities. The best place to start would be to do a complete tune-up. If your friend does not know how to do it, he should have his favorite local mechanic or the local Honda shop mechanics do it. If he does not want to do that--tell him to go to a auto parts store like Auto Zone and get a can of chemicals that he pours into a full tank. The chemicals clean all items related to the fuel system--especially the injectors that can easily get clogged and cause all sorts of problems. -- NEWSGROUP SUBSCRIBERS MOTTO We respect those subscribers that ask for advice or provide advice. We do NOT respect the subscribers that enjoy criticizing people. |
Re: 96 ex stalling while idling
In article <RRkGd.9019$J36.1687@fe39.usenetserver.com>, "lrego"
<lrego@alltel.net> wrote: > A friend of mine has a 96 ex and says when the engine is hot and he is > idling at a long traffic light sometimes the engine will just start idling > really rough and then stall out. He starts the car and it's ok. Sometimes > for the rest of the day. This happens more when it's hot. The car has > 120K. No check engine light on and scanner shows no codes. What could be > causing this? Thanks Larry There are several possibilities. The best place to start would be to do a complete tune-up. If your friend does not know how to do it, he should have his favorite local mechanic or the local Honda shop mechanics do it. If he does not want to do that--tell him to go to a auto parts store like Auto Zone and get a can of chemicals that he pours into a full tank. The chemicals clean all items related to the fuel system--especially the injectors that can easily get clogged and cause all sorts of problems. -- NEWSGROUP SUBSCRIBERS MOTTO We respect those subscribers that ask for advice or provide advice. We do NOT respect the subscribers that enjoy criticizing people. |
Re: 96 ex stalling while idling
"lrego" <lrego@alltel.net> wrote in message
news:RRkGd.9019$J36.1687@fe39.usenetserver.com... >A friend of mine has a 96 ex and says when the engine is hot and he is > idling at a long traffic light sometimes the engine will just start idling > really rough and then stall out. He starts the car and it's ok. > Sometimes > for the rest of the day. This happens more when it's hot. The car has > 120K. No check engine light on and scanner shows no codes. What could be > causing this? Thanks Larry > > If it comes down to blind shotgunning of parts, I would start with the "main relay" for about $50 at NAPA. I'm not sure how hard it is to get to on the '96 (it is about an hour's job on my daughter's '93), but it is notorious enough for symptoms like this that it is a good suspect. The rough running before stalling, then works okay when restarted is especially suspicious for the main relay. In addition, lack of a "check engine" light suggests the problem is one the ECU has no knowledge of - often something between the ECU and the spark or between the ECU and the fuel spray. Fading away always makes me think loss of fuel pressure (ignition failure is more often like hitting a switch) and the immediate return of normal operation suggests the fuel pump itself isn't dying. The main relay is cycled every time the car is started, so it gets my "evil eye" award for this one. In addition, the age of the car makes sense for the main relay. I replaced the one in her '93 a couple weeks ago after resoldering it a few months ago. I am a new convert to the "replace if possible, resolder if you can't replace" crowd. Mike |
Re: 96 ex stalling while idling
"lrego" <lrego@alltel.net> wrote in message
news:RRkGd.9019$J36.1687@fe39.usenetserver.com... >A friend of mine has a 96 ex and says when the engine is hot and he is > idling at a long traffic light sometimes the engine will just start idling > really rough and then stall out. He starts the car and it's ok. > Sometimes > for the rest of the day. This happens more when it's hot. The car has > 120K. No check engine light on and scanner shows no codes. What could be > causing this? Thanks Larry > > If it comes down to blind shotgunning of parts, I would start with the "main relay" for about $50 at NAPA. I'm not sure how hard it is to get to on the '96 (it is about an hour's job on my daughter's '93), but it is notorious enough for symptoms like this that it is a good suspect. The rough running before stalling, then works okay when restarted is especially suspicious for the main relay. In addition, lack of a "check engine" light suggests the problem is one the ECU has no knowledge of - often something between the ECU and the spark or between the ECU and the fuel spray. Fading away always makes me think loss of fuel pressure (ignition failure is more often like hitting a switch) and the immediate return of normal operation suggests the fuel pump itself isn't dying. The main relay is cycled every time the car is started, so it gets my "evil eye" award for this one. In addition, the age of the car makes sense for the main relay. I replaced the one in her '93 a couple weeks ago after resoldering it a few months ago. I am a new convert to the "replace if possible, resolder if you can't replace" crowd. Mike |
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