Check the plug wires, (correct me if I am wrong, but I think it still has a distributor) cap and rotor button. It sounds like the moisture is causing a ...

ASTE25 · by **ASTE25** » Dec 07 2011, 6:23am

Check the plug wires, (correct me if I am wrong, but I think it still has a distributor) cap and rotor button. It sounds like the moisture is causing a miss. With it being so cold when it will not start, you may have a cracked dist. cap that the crack expands in the cold weather. If it has been missing for a while, you could have also killed the catylatic converter.

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jose1974 · by **jose1974** » Feb 05 2012, 12:57am

My 02 sierra 4.3l i parke tuesday was good friday it will turn over but it wont start check fuel pressure 62 psi i have fire but engine dont start i believe i have some electrical problem any help be good thanks. Also i check the timing look good i dont know what else to do. Any help thanks

ASTE25 · by **ASTE25** » Feb 05 2012, 4:08am

Sounds like you will have to have a diagnistic scanner hooked up to find out what it is. You only need 3 things for it to run: fuel, fire (in the right time) and compression. I have seen cran and camshaft sensors cause problems similar to what you describe.

jose1974 · by **jose1974** » Feb 05 2012, 4:16am

well i have one i cant get any code in the scanner i even unplug the cramshat sensor to see, them i got a fault in the scanner i even remove the fuel cap i have a code for that too but still nothing to put me back on running.

ASTE25 · by **ASTE25** » Feb 05 2012, 4:22am

Do you have a diagnostic scanner or a code reader? There is a big difference (about a $3200 difference). A code reader will not tell you what you need to know. A diagnostic scanner will.

jose1974 · by **jose1974** » Feb 05 2012, 4:25am

my scanner tell me the code # and description, also i can reset or delete any code. thanks

jose1974 · by **jose1974** » Feb 05 2012, 4:32am

i only pay like a $100 dollar allways help before i dont know right now i been working on it for a while i am tire i even replace the plugs tomorrow i will replaced the cramshaft, maybe fix my problem, i am open to any sugestion( no code no engine light on nothing, this never happen to me before. thanks

ASTE25 · by **ASTE25** » Feb 05 2012, 7:17am

A diagnostic scanner (not a code reader) will be able to show you a lot more information than just the codes. You can use it to actually see what sensor is reading what and other stuff besides just pending codes. It will help prevent you from doing what you are doing (throwing parts and money at the problem).

jose1974 · by **jose1974** » Feb 05 2012, 7:16pm

ASTE25 wrote:A diagnostic scanner (not a code reader) will be able to show you a lot more information than just the codes. You can use it to actually see what sensor is reading what and other stuff besides just pending codes. It will help prevent you from doing what you are doing (throwing parts and money at the problem).

U are right i will try tonigh went i get off at 7 pm to see what can i get thanks

ASTE25 · by **ASTE25** » Feb 05 2012, 9:26pm

OK, let me know what you find out.

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Check the plug wires, (correct me if I am wrong, but I think it still has a distributor) cap and rotor button. It sounds like the moisture is causing a ...

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