Pontiac When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

2000 Pontiac Bonneville V6-3.8, engine locked

Old 09-12-2016, 04:09 AM
  #1  
Junior Member
Thread Starter
 
rrwhitetale's Avatar
 
Join Date: Sep 2016
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
rrwhitetale is on a distinguished road
Default 2000 Pontiac Bonneville V6-3.8, engine locked

Hello everyone,

I drove my car to work on Thursday night, come home Friday morning on this last labor day weekend. Parked it, used my other vehicle for the holiday weekend, went to go back to work Tuesday night and it would not start. It sounded like a battery issue, so I charged it on slow for 8 hrs., tested it, it was 100%, installed it. No go. So probably the starter. Replaced it and the same. The starter wants to engage but will not turn over. I put the 1" socket and breaker to the crank and it would not go forward as the motor usually turns. So I reversed the moter probably 1 turn, hit the key and it started for 1 second till it stopped with a screech, locked form going forward. I took the serpentine belt off to check the AC pulley and it'* free. The car had run great, every time something looked to be going wrong, I put it in. No oil in Radiator, no anti-freeze in the oil. Cannot understand it run perfect, parked it for 4 days and this.

Any opinions? Torque Converter?

Thanks!
Old 09-12-2016, 10:47 AM
  #2  
Senior Member
True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,816
Received 241 Likes on 198 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

I suspect the lower intake manifold gasket has failed and the engine is hydrolocked with coolant. Try pulling the plugs and turning the engine over. When it previously sat overnight between operating the smaller amounts of coolant were insufficient to lock the engine and just burned off. After sitting for four days enough coolant gathered to lock the engine.

Last edited by 2kg4u; 09-12-2016 at 10:50 AM.
The following 2 users liked this post by 2kg4u:
GunsOfNavarone (09-12-2016), Mike (11-24-2020)
Old 09-12-2016, 03:33 PM
  #3  
Retired



Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Dark Side, AZ
Posts: 17,920
Received 1,780 Likes on 1,304 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

I agree, pull all the plugs and use the starter to turn the engine over. Check your coolant level too!
__________________
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel

The following users liked this post:
GunsOfNavarone (09-12-2016)
Old 09-12-2016, 06:20 PM
  #4  
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 7,270
Received 457 Likes on 359 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

A suggestion so nice, I shall share it thrice!

I agree, pull plugs, then hand crank over. You will either shed coolant, or it still wont turn. You'll want to be hoping for the former, because the latter can get downright expensive.

It'* possible that 4 days of leaking happened to finish it off, but I believe that this was likely the first day of a catastrophic failure. Usually if it'* going to leak bad like that, it'* with pressure in the cooling system. Then it blows, and no more goes, whether it'* sitting for 20 minutes, or 20 days.
The following users liked this post:
GunsOfNavarone (09-12-2016)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Lingren841
2000-2005
5
08-11-2011 09:25 AM
Goatcrazy
1992-1999
28
09-13-2006 04:49 PM
Rebel25A
2000-2005
29
06-02-2006 06:37 PM
hedy alison
Audio (and aftermarket electronics)
1
09-26-2003 06:19 AM
FattyMcbee
1992-1999
6
07-12-2003 12:35 AM


Thread Tools
Search this Thread
Quick Reply: 2000 Pontiac Bonneville V6-3.8, engine locked



All times are GMT -4. The time now is 10:15 AM.