97 Blazer engine probs

Ok i toook it to the tranny shop cause i thougght the tranny was bad. One place told me that they wanted to do a complete overhaul for 1050. I told them im taking ot another place. They said there are no transmission issuess and they pulled a P0300. Got love how broad that is... So i am going to do spark plugs and wires (AC Delco- Platnium). But i have heard everyone talkin about the Ignition Switch.? some info on that would be helpful.

1997 Blazer 4.3l
Error Codde P0300
No SES light.

yep ... do a search on 97 1997 ignition switch ... also do the same in the GMC Jimmy forum.




Ok i toook it to the tranny shop cause i thougght the tranny was bad. One place told me that they wanted to do a complete overhaul for 1050. I told them im taking ot another place. They said there are no transmission issuess and they pulled a P0300. Got love how broad that is... So i am going to do spark plugs and wires (AC Delco- Platnium). But i have heard everyone talkin about the Ignition Switch.? some info on that would be helpful.

1997 Blazer 4.3l
Error Codde P0300
No SES light.

Ignition switch is that the part where u insert the key? every have a laugh on me .... ok cause i had that replaced a long time ago... key got stuck could pull it out u know the rest.... The car has a very sluggish accelration it is kind of bumping or jolting into second i get to 50 and it doesnt wanna go any faster. the rpms go up but not the speedometer...
Cleaned EGR valve
In process of switching out plugs and wires (Ac Delco platinums set @ .060)
Almost to the point to buy new car and stay away from chevy's uhhh HELP.....

Ignition switch is that the part where u insert the key? every have a laugh on me .... ok cause i had that replaced a long time ago... key got stuck could pull it out u know the rest.... The car has a very sluggish accelration it is kind of bumping or jolting into second i get to 50 and it doesnt wanna go any faster. the rpms go up but not the speedometer...
Cleaned EGR valve
In process of switching out plugs and wires (Ac Delco platinums set @ .060)
Almost to the point to buy new car and stay away from chevy's uhhh HELP.....

Sounds like a fuel starvation problem to me. Fuel filter may be clogged and it's a fairly simple replacement part. You may also have bad gas or plugged injectors. Try running some cleaner thru the gas.

No. Tranny codes with no tranny problems is not a sign of fuel starvation. It's a sign of the all-too-common 97 ignition switch failure. However, on a 97, if the fuel filter has never been changed, it should be done. The fuel injector cleaner couldn't hurt either on a 97.



Sounds like a fuel starvation problem to me. Fuel filter may be clogged and it's a fairly simple replacement part. You may also have bad gas or plugged injectors. Try running some cleaner thru the gas.

they told me the p0300 is a code for Cylinder misfire

yeah, I may have read your post too quickly. A tune-up should help the cylinder misfire. Keep an eye on that ignition switch though. Why did you think the tranny was bad?


they told me the p0300 is a code for Cylinder misfire

Sluggish acceleration. Tanny is shift kinda hard into 2, and the vehicle will notgot overr fifty it keeps bucking like it wants to shift but it cant. Rpms will go higher than normal when accelerator is floored then it shifts..

Yip, change the ignition switch, it is a black module in the steering colum. It is NOT the part you put the key into.

Also, maybe time to do a complete tuneup.

Plugs and wires is not a tuneup.