1993 Pontiac Sunbird runs rough on cold starts?

Question:
When the engine is cold started it acts like it's running on 3 cylinders until it runs for about 30-60 seconds, then smooths out and runs normally. It has the 2.0l FI engine with the small valve cover.

2002 Mazda MPV engine surges almost into stall when cooling fan turns on in gear at idle what causes this ?

I suspect a valve lifter isn't working right, but would like to hear other opinions.

Answers:

DVD upscalers?

Its also possible you have an injector thats failing. Sounds like the motor is loading up to me. That means its getting too much fuel. when the engine is in open loop it gives a certain amount of fuel to run the engine. then after it reaches a certain tempature it closes the loop. that means that its reading all the sensors and adjusting the fuel accordingly.

1989 toyota corolla 4dr sedan 2bl carb engine question?

If its a lifter it would make more noise until it smooths out.

---

Car Valeting for a garage is it usually good money or what ?

ok first things first when was this car last tuned up?
if it hsa been done then the first thing to look at is the coolant temp sensor (false readings?) i dint know yet not enough info

---

More Questions & Answers ...

ABS system failure?

I need help .?

Electric start crf230f?

Transmission does not work?

I have a 1996 camaro Z28 with an LT1 8 cyl. and i need to know if a 1997 at. transmission will fit into my car

Changed brake pads in front of my 1997 Ford taurus SHO and now the brake pedal goes all the way down?

1995 Ford Thunderbird Overdrive Light Flashing?

Buick Park Avenue 2000?

Car inspection Speedometer not working?

What fuse do i need to make my car cigarette lighter to work?

This article contents is post by this website user, CarQnA.com doesn't promise its accuracy.