3800 SES Light......

[xplicitt]

Yesterday morning my Service Engine Soon light came on while I was driving to work. Car seems to be running fine but I have no idea why this fricken light is on now?? Any suggestions??

Click to read more...

 

[SnM]

any recent modifications?

does autozone still offer free ses light checking?

 

[iliveonnitro]

Do you have a 160 or 180* thermostat? I had a 160 in, and it set an SES light saying the coolant temp something or other was too low...problem solved when I threw back in my stocker 195*.

Other mods might do it too.

And yes, Murrays and AutoZone both offer free OBDII scans.

 

[BumpinGTP]

find someone near you with an autotap or scanmaster and have them scan it for you

 

[ThaLord]

where do you live?

 

[sr71_rgl]

Originally posted by xplicitt@Dec 19 2003, 02:20 PM
Yesterday morning my Service Engine Soon light came on while I was driving to work. Car seems to be running fine but I have no idea why this fricken light is on now?? Any suggestions??

It's been pretty cold lately which could trip the light. I have a 180 stat and the rubber weather stripping removed. My light came on several times on the way home from work this morning. I also noticed the car was running around 170 degs and wouldn't blow hot air the whole ride home. Im putting that weather stripping back in today. The car heats up much faster with it in and its easy to remove when it the weather warms up in a couple months.

 

[J.E.T.]

Ony way to know is to scan the car. Sears has this cheap OBDII scanner for around $20. Or, find someone close to you with a scanner...

I thought AutoZone stopped scanning?

I'll be home all week. If you live close, feel free to stop by and we'll scan it. I live in Hanover Park.

J.E.T.
'97 Red GTP

 

[xplicitt]

well the light is no longer on, so in a couple of weeks when I go on vacation my buddy is going to take the car to his shop and check it out and give it a good tune-up. Thanks for the help.

 

[00 GTP Debadged]

If it gets in the 20's mine will come on with the 180 tsat in...

Randy

 

[iliveonnitro]

It has to get into the mid 40s to set my SES light for my 160* stat

 

[rob]

Did you have a hangover when the lamp came on? Need to know your upgrades.
The going consensus is a low coolent temp SES. Get it scanned at Autozone for free.

If it is a low temp and you want to continue running a cool engine. Like you SHOULD BE if your running higher psi. A resister can be spliced in to passify the PCM. Zooomer has the details.

It wont harm your engine-if in fact this is the problem. Or are the batterys in our cyristal balls low? <_< ROB

 

[xplicitt]

it was just my t-stat, it wasn't closing all the time.....Its all better now

 

[BumpinGTP]

it was just my t-stat, it wasn't closing all the time.....Its all better now

i had the same problem, my t stat was stuck open, so my car would never warm up, and it set codes constantly