Questionhow do i clear the codes myself, to get the codes i was going to autozone and they hooked the computer to the car. so i want to do this myself how do i do it?
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i havent got a chance to replace the spark plugs and wires so yes it does still misfire, is this the reason it runs hot?. I dont know if both cooling fans work i need to check that.
same codes:
p0171
p0174
p0300
p0741
p1258
p1133
p1153
i havent got a chance to replace anything right now. it runs rough, and it uses alot of gas. and ot still runs hot. Question if i replace everything here will it run fine and normal?
im debating if i should sell it as is, or keeep and fix it? thanks tom
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tom your a lot of help. question today i drove the 98 seville and the temp gauge read hotter than normal it was one line before the red. then i got off the highway and slow down and it eventaully returned back to the half point. What does this mean?
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that is it just the water pump and some crossovergaskets, but you just said that i need to replace the etc engine temp sensor would this help it from rising at all?
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it did overheat and the cadillac dealership said it was the water pump so now it is running fine the temp gauge is at half way then rises a little bit but falls back down. is this normal?
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Sorry to bother you again, i recently asked about my 98 cadillac seville sts v8 4.6. and the codes it put out which were again:
p1153
p1133
p1258 along with these were codes for cylinder misfire and torque conter sensor. the guy said cylinder misfire is for new spark plugs.
I just spoke to a friend who is a tech for nissan, when i mentioned all these codes and problems he said this might be because i have a blown head gaskets. IS this true? do i really have a blown head gaskets? Does this mean i need a whole new engine? Or should i just fix these problems and then check for blown head gaskets? TOM please help me i love the seville!!
Answer -
Is your engine temp reading above normal ?. Normal is 220-240 degrees.
Are you USING and having to add coolant to the radiator and or overflow jug ?.
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Yes, this IS normal. What other parts did they replace besides the water pump ?. A faulty water pump seems kind of ODD.
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as long as it is working as you just described, Don't change or replace anything.
I am just a little skeptical about the cause being the water pump.
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To me it means you did NOT need a new water pump.
Question: are both cooling fans running when the temp gets real high ?.
Do you still have a slight missfire in the engine ?.
Are you getting the same or ANY codes ?.
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You need to CLEAR the codes from the computer and see which ones come back.
Answer1. Ignition ON, Engine OFF.
2. Simultaneously push the ON/OFF and INFO^(info/up) buttons for 3 seconds and release them.
3. It should be in the DTC check mode.
4. Use the ON/OFF button to select, When it lists a question, i.e CODES?
5. Push ON/OFF button to select CODES? and the codes will start to appear if there are any.
6. After it stops displaying, when it askjs you to CLEAR CODES push the ON/OFF button and the codes will clear. You want to clear the PCM CODES.
