Boats For Sale:
PCM GT40 |
Post Reply 
|
| Author | |
1765MB 
Newbie 
Joined: July-01-2011 Location: Massachusetts Status: Offline Points: 5 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: PCM GT40Posted: July-01-2011 at 10:04am |
|
I just bought a model year 2001 ski nautique with a PCM GT-40 w/ fuel injection that sat is storage for 1 year. I put a couple of hours on it with no issues. However, last night I took it out and it ran fine until I got to about 2600 rpms and then it bogged down. When I brought it back under 2600 rpms it ran fine again. Any Ideas? By the way the boat has only 70 hours on it and has been professionally maintained.
|
|
 |
|
|
horkn
Platinum Member 
Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
Post Options
Thanks(0)
Quote Reply
Posted: July-01-2011 at 11:47am |
|
Sounds like it isn't getting the fuel it needs.
|
|
|
78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
|
|
|
|
scottb
Senior Member 
Joined: July-05-2006 Location: Bolingbrook, IL Status: Offline Points: 376 |
Post Options
Thanks(0)
Quote Reply
Posted: July-01-2011 at 1:49pm |
|
Is the check engine light on? If it will not go above 2500 rmp, then it sounds like it may be in SLOW mode, which means you probably have a problem with your oil pressure switch or temp switch. I think there is a GT-40 service manual in the reference section. The service manual will help you locate the switches. If the problem is caused by one of these switches, you can disconnect one at a time to isolate the problem. Start with the oil pressure switch.
|
|
|
|
|
1765MB
Newbie
Joined: July-01-2011 Location: Massachusetts Status: Offline Points: 5 |
Post Options
Thanks(0)
Quote Reply
Posted: July-01-2011 at 3:47pm |
|
The check engine light did not come on but I will follow your suggestion and reference the service manual to isolate the switches
Thanks |
|
|
|
|
Luchog
Grand Poobah 
Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
Post Options
Thanks(0)
Quote Reply
Posted: July-02-2011 at 2:59pm |
|
did you ever look at the fuel filter?
|
|
|
|
|
1765MB
Newbie
Joined: July-01-2011 Location: Massachusetts Status: Offline Points: 5 |
Post Options
Thanks(0)
Quote Reply
Posted: July-02-2011 at 4:06pm |
|
The fuel filter is good, this issue is very consistent at 2600 rpm and seems like the engine goes into a safety mode. I think the advice to check the oil and temp switches is on the right track. Its probably a sender thats gone bad, or something along that line. I won't know for a few days as other events will keep me from foolin around with the boat but I'll post the solution when I get it.
|
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options