The Stupid Engine Questions Thread

[freeman35]

Probably a very stupid question but my truck has been running fine besides burning oil, I went to the store the other day and when I left the store it had a ticking sound, got home popped the hood and pulled the valve cover and found out one of the pushrods on the #3 cylinder is bent, can I replace just the pushrod or should I tear down and inspect cam?

 

[freeman35]

You must be registered for see images attach

 

[freeman35]

That's how it looked when I took the valve cover off, I only drive it a 1/4 mile like this

 

[MXR597]

Where exactly is the throttle position sensor on a 305 5.0L? How hard is it to replace?

 

[Cartoad]

I have a 95 K1500 with the 5.7 ... I have rebuilt the whole top end new heads push rods lifters and also new oil pump and rod bearing and I still have this terrible ticking/knocking noise coming from underneath cant seem to find out what it is has anyone heard of broken flexplates or bad torque converters? Iam stumped any help would be appreciated thanks in advance

 

[Cartoad]

I have a 95 K1500 with the 5.7 ... I have rebuilt the whole top end new heads push rods lifters and also new oil pump and rod bearing and I still have this terrible ticking/knocking noise coming from underneath cant seem to find out what it is has anyone heard of broken flexplates or bad torque converters? Iam stumped any help would be appreciated thanks in advance

 

[jrollings]

I have a 95 K1500 with the 5.7 ... I have rebuilt the whole top end new heads push rods lifters and also new oil pump and rod bearing and I still have this terrible ticking/knocking noise coming from underneath cant seem to find out what it is has anyone heard of broken flexplates or bad torque converters? Iam stumped any help would be appreciated thanks in advance

Have you check your torque converter bolts? Also have you isolated where the noise is coming from? Use a stethoscope or a long screwdriver?

 

[jrollings]

Probably a very stupid question but my truck has been running fine besides burning oil, I went to the store the other day and when I left the store it had a ticking sound, got home popped the hood and pulled the valve cover and found out one of the pushrods on the #3 cylinder is bent, can I replace just the pushrod or should I tear down and inspect cam?

I'd say you would be okay just replacing the pushrod. My concern is why it bent in the first place. Were your rocker arms loose? Definitely check your other rocker arms for the proper torque.

 

[Kamd90Chevy]

90 5.7, are these motors Hydraulic Flat Tappet or Mechanical Flat Tappet?

 

[YooperRicky]

I am buying a LO5 350 from a 92 K1500 to replace my LO3 305 in my 90 K1500. I know I need the ECU but should I get the wiring harness with the PROM also? And does anyone know the performance specs of the LO5? (HP & Torque)