Iddle RPM

J

JasonBourne

Member

:

2003 Mazdaspeed Protege

• Apr 6, 2009

• #1

hi, when i drive with the car cold the rpm was high, but when the car reach the work temp. the rpm goes down to 5000 rpm aproximatly, and when i turn on the lights in the night the rpm goes down even more to 4000 rpm i don't know what's wrong, because when i turn of the light the rpm goes up to 5000rpm again.
I appreciate any help

 

M

mazdaspeeeeed

Member

:

MSP 2003.5

• Apr 6, 2009

• #2

JasonBourne said:

hi, when i drive with the car cold the rpm was high, but when the car reach the work temp. the rpm goes down to 5000 rpm aproximatly, and when i turn on the lights in the night the rpm goes down even more to 4000 rpm i don't know what's wrong, because when i turn of the light the rpm goes up to 5000rpm again.
I appreciate any help

Click to expand...

5000? sure that isnt a typo?

 

J

JasonBourne

Member

:

2003 Mazdaspeed Protege

• Apr 6, 2009

• #3

sorry about that, you are right i was mean 500 rpm and 400 rpm
LOL

 

M

mazdaspeeeeed

Member

:

MSP 2003.5

• Apr 6, 2009

• #4

JasonBourne said:

sorry about that, you are right i was mean 500 rpm and 400 rpm
LOL

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ok lol i was about to say! uhhh lets see.... i would say to do a visual inspection on everything. check all your vacuum lines to make sure they arent cracked, check all your pipes and make sure they arent leaking.. only other thing i can think of is maybe your alternator is going bad but im afraid that is out of my lack of expertise...

 

J

JasonBourne

Member

:

2003 Mazdaspeed Protege

• Apr 6, 2009

• #5

i was thinking the same thing, but the alternator is the same of the regular protege??

 

O

orng1

Member

:

mazdaspeed protege

• Apr 6, 2009

• #6

Does it feel like the engine shakes rough at that low rpm? There aren't lines lower than 500rpm on the cluster. It starts at 500, 750 to 1k.

 

M

mazdaspeeeeed

Member

:

MSP 2003.5

• Apr 6, 2009

• #7

JasonBourne said:

i was thinking the same thing, but the alternator is the same of the regular protege??

Click to expand...

as far as i know they are the same. there is a way to test the alt but i dont know how... ask a mechanic. but first listen to what other ppl here say haha

 

O

orng1

Member

:

mazdaspeed protege

• Apr 6, 2009

• #8

14 volts with the car on, alternator is good. I had mine at 13.2 with a bad battery. Replaced the battery and it went to 14.2.

 

J

JasonBourne

Member

:

2003 Mazdaspeed Protege

• Apr 6, 2009

• #9

To be more specific:
1 when the car is warm
2 when the car is warm and i turn on the lights

 

K

KZL_99ES

Member

Contributor

:

2005 VW Golf TDI

• Apr 6, 2009

• #10

this is normal, your 1 and 2 lines are 750 and 700 rpms...

each tick mark line is 100 rpm, the think line right after the 0, IS 500 rpm

 

O

orng1

Member

:

mazdaspeed protege

• Apr 6, 2009

• #11

That's way normal, the first solid line from 0 is 500 the smaller lines are 100 intervals.

 

J

JB50

Member

:

2003 mazdaspeed

• Apr 10, 2009

• #12

Wish My Car Idled Like That