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hard starting and sluggish v6 by jmbishop
Started on: 10-02-2007 01:23 PM
Replies: 5
Last post by: jmbishop on 10-14-2007 03:41 PM
jmbishop
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Report this Post10-02-2007 01:23 PM Click Here to See the Profile for jmbishopClick Here to Email jmbishopSend a Private Message to jmbishopDirect Link to This Post
I have replaced the ignition control module, cap, rotor, wires, plugs and coolant temp sensor. the car is hard to start when cold and runs a little rough when warming up, once warm the car is sometimes still a little sluggish and on rare occasion's the car will not start when warm. I took it to a shop today that couldn't figure it out.
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Dodgerunner
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Report this Post10-02-2007 02:22 PM Click Here to See the Profile for DodgerunnerClick Here to visit Dodgerunner's HomePageClick Here to Email DodgerunnerSend a Private Message to DodgerunnerDirect Link to This Post
Has anyone checked fuel pressure?
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jmbishop
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Report this Post10-02-2007 08:54 PM Click Here to See the Profile for jmbishopClick Here to Email jmbishopSend a Private Message to jmbishopDirect Link to This Post
yep, one of the first things checked
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Dodgerunner
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Report this Post10-02-2007 10:51 PM Click Here to See the Profile for DodgerunnerClick Here to visit Dodgerunner's HomePageClick Here to Email DodgerunnerSend a Private Message to DodgerunnerDirect Link to This Post
Have you check the IAC is clean and working and IAC port is clear.

The IAC port passage is what carries the cold start inj. fuel to the engine for starting if you have a idle air problem might explain some of your problems.

When running cold after a start only the fuel table controlled by the MAP and rpm, CTS and to a lesser extent the MAT are used before the engine goes into closed loop.


Might keep the CAT in mind also. Maybe getting plugged up.

[This message has been edited by Dodgerunner (edited 10-02-2007).]

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uhlanstan
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Report this Post10-03-2007 10:44 AM Click Here to See the Profile for uhlanstanClick Here to Email uhlanstanSend a Private Message to uhlanstanDirect Link to This Post
loosen bottom of Y pipe or loosen system in front of cat and muffler and start cold ,to eliminate this as problem
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jmbishop
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Report this Post10-14-2007 03:41 PM Click Here to See the Profile for jmbishopClick Here to Email jmbishopSend a Private Message to jmbishopDirect Link to This Post
Hard starting problem solved, added a fuel injector cleaner and now it starts right up. it still runs rough, I will probably replace all the injectors and the fuel pressure has started to drop so the pump is getting replaced also.

[This message has been edited by jmbishop (edited 10-14-2007).]

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