cold start troubles

bigdaddyD · 09-09-2008, 12:25 AM

i have an 03 with 92k miles on it. when ever i start the car from a cold start it has a rough idle and the car shakes alot. if i put it in reverse it acts like its gonna stall, if i put it in drive it does the same thing but its not as bad, but once i give it some gas in drive it stops. im thinking it might be bad/dirty injectors, ive tried sea foam but it didnt help. any ideas?

CactusWill · 09-09-2008, 04:07 AM

Thats interesting, seeing as how reverse is the most powerful gear in a car. I'd start out with the basics, like replacing your fuel filter, and go from there.

bigdaddyD · 09-09-2008, 04:29 AM

the fuel filter is only a couple of months old, i replaced the spark plugs from bosch plat +2 to ac delco last month and put new wires on to.

CactusWill · 09-09-2008, 05:08 AM

Quote:

Originally Posted by bigdaddyD

the fuel filter is only a couple of months old, i replaced the spark plugs from bosch plat +2 to ac delco last month and put new wires on to.

Hmm.... Have you had your codes scanned?

bigdaddyD · 09-09-2008, 05:30 AM

i have not i will the next time i pass an az but there are no light on right now

Midgear · 09-09-2008, 05:32 AM

try cleaning your mass air flow sensor and intake air temp sensor? did you put the seafoam directly into the throttle body or dump it into your gas tank?

bigdaddyD · 09-09-2008, 10:50 PM

i put seafoam in the gas tank crank case and pvc but i will clean the two sensors tomorrow. what do i use to clean them?

Midgear · 09-09-2008, 11:00 PM

hell I just had a can of air laying around and blew mine out.. lol

USsnipes · 09-09-2008, 11:07 PM

i have a similair prob. when i start up my car the rpms will go up to around 1k and drop to about 500 and it will do this for a bit until i rev the car or put it in a gear.

rustyballs_69 · 09-10-2008, 12:55 AM

Quote:

Originally Posted by bigdaddyD

i put seafoam in the gas tank crank case and pvc but i will clean the two sensors tomorrow. what do i use to clean them?

They sell MAF cleaner and throttlebody cleaner at pretty much any auto parts palce.

zzyzzx · 09-10-2008, 07:20 AM

Check for vacuum leaks.

-Alero- · 09-10-2008, 03:57 PM

clean your idle air control valve, its attatched to the throttle body its the black sensor at the top and held by 2 star screws

bigdaddyD · 09-25-2008, 02:45 AM

well after having my car scanned for codes, which came up empty, and cleaning the entire engine bay it turns out it was the fuel pump. i would have done it myself but i didnt have the time so i had a shop do it and it set me back $730.