302 won't stop pinging
Thread Starter
|
Senior User
Joined: Sep 2016
Posts: 219
Likes: 1
Absolutely. I was very impressed with how they actually diagnosed the problem and they did good work too.
Thread Starter
|
Senior User
Joined: Sep 2016
Posts: 219
Likes: 1
Just thought I would update this thread again. The pinging ended up returning a couple thousand miles later. The cause this time is the passenger side head gasket being blown. Thankfully it was leaking coolant to the outside of the engine and not into my oil. Remember to change your coolant!
Thread Starter
|
Senior User
Joined: Sep 2016
Posts: 219
Likes: 1
Finally got the truck back from the shop. They replaced the head gaskets, rebuilt the cylinder heads, replaced the exhaust manifolds, replaced timing cover gasket and timing chain, and replaced the harmonic balancer. Certainly spent some money, but it's running good now. The mechanic spent 5 hours cleaning rust out of the cylinder heads and block. He took a video, so I will see if I can get that and upload it next week.
Thread Starter
|
Senior User
Joined: Sep 2016
Posts: 219
Likes: 1
That's a good idea. I will get that uploaded tonight. They said the got a cup worth of flakes out of each side of the engine block too.
New User
Joined: May 2017
Posts: 22
Likes: 0
Traces of oil getting into the cylinder(s) will cause pinging; the oil effectively lowers the octane rating of the gas.
I had the same problem a couple of years ago. Changing to a colder plug helped........but a leaking intake valve stem seal that was allowing traces of oil into the cylinder, was the cause of the problem.
I had noticed one plug would sometimes look white, & sometimes match the other seven. The white ash was burnt oil coming past the stem seal; the ping slowly got worse.
I replaced it (& all the others while I was in there), & the problem was fixed.
Good luck
I had the same problem a couple of years ago. Changing to a colder plug helped........but a leaking intake valve stem seal that was allowing traces of oil into the cylinder, was the cause of the problem.
I had noticed one plug would sometimes look white, & sometimes match the other seven. The white ash was burnt oil coming past the stem seal; the ping slowly got worse.
I replaced it (& all the others while I was in there), & the problem was fixed.
Good luck
Thread Starter
|
Senior User
Joined: Sep 2016
Posts: 219
Likes: 1
Ding ding ding yes that or a very small leak head gasket check your spark plugs mine is head gasket started too small to notice then got worse change your foweled plugs mark the cylinders check your antifreeze and oil for a few weeks if missing head if not what he said or its the o2 sensors lol
Thread
Thread Starter
Forum
Replies
Last Post
tscholz2001
1987 - 1996 F150 & Larger F-Series Trucks
16
Feb 25, 2019 03:11 AM
anthonym92
1987 - 1996 F150 & Larger F-Series Trucks
14
Jun 2, 2015 02:01 PM
Sawbones25
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
6
Sep 10, 2003 03:23 PM