ok so i went to see why my check engine light was on they did a smoke test checked fillters and oxygen sensors and as well the gas cap and was good but did not find any thing when disconectting the battrey the light will go of for about a week then comes back on what would be the problem?
check engine light on 1999 Dodge Ram 1500
by elim92 in Diamond Springs, CA on January 06, 2011
3 answers 6 comments
ANSWER by Visitor on January 06, 2011
I had the same problem. My gas cap was checked as good as well as all of your other items, Then the man tightened the gas cap real real tight and it went off forever!!! Try that.
hey it worked awsome thanks
ANSWER by ZeeTech on January 06, 2011
Do you know the diagnostic trouble codes that they pull out from the ECM?? Zee
they said nothing showed up on there code system
If the check engine light was on there must have been least one code in the ECM. Zee
they just told me they couldent find anything and no codes showed up showing why its on
ANSWER by candaautomotive on January 06, 2011
Take it to another shop to see what code is stored? Most computer have a PROM chip that stores memory regardless if you disconnect the battery or not? If a code is still not present you may have a shorted wire from the computer to dash or a bad dash module? They may need to check the BCM to see if a code is stored there? This is a computer that is separate from the PCM. The BCM is also call the Body Control Module.
I agree with c & a automotive, take it to another shop and get a second opinion. Zee
COMMENT by elim92 on January 07, 2011
i figured out what it was it was a timing shifter sensor in the trans mission went out i got it fixed
a local dealership says we need all new belts and hoses on this truck in order for the check engine light to stay off, and in order to get our inspection sticker renued. they gave us an estimate of $...
If a Check Engine Light illuminates indicating leak detection pump (LDP) failure, the cause is often pinched or disco...
...erous times and it always reads EVAP emissions. what can I do do elimanate this from having my check engine light to always come on
This problem has occured off and on.I had it cked.at Dodge service,they put some attachment to it and could not find any problem,Then the light went off.It is back on again,the truck is runing fine,