I have tried replacing the air filter and oil change added some zmax multi system microlubricant and I'm still having the same issues. The car idles rough, at stop lights, both when its cold and when its hot but more frequently when its hot. Occasionally while it's hot and I'm cruising at a steady speed there is hesitation in the engine. The engine is a 2.7 v6, on my 1999 Dodge Intrepid se. The engine is not throwing any codes.
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1999 Dodge Intrepid Question: why do I have a rough idle at stop lights an engine hesitation while cruising
Answer #1goodguy November 24, 2013, 07:38Master
check for a vacuum leak and clean throttle body
Replyixavion, November 24, 2013, 15:48Rookie
OK, I cleaned the throttle body, which did not look too bad. and that didn't help, in fact it feels as though it got worse. As for a vacuum leak, I do see 2 plastic 1/4" hoses, just above the passenger side of the engine. One of the hoses is connected and the other one is broken. Any idea what these hoses go to?