1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

Surge After Shifting

Old Jan 27, 2021 | 10:50 AM
  #11  
Red 94's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2021
Posts: 8
Likes: 0
Default

I wasn't able to get my hands on an OBD I scanner, but I did find a test involving a paper clip and a list of codes on this forum. Based on the flashes I got it is the TPS sensor. I will be ordering that and getting it swapped. Thank you for your help!
Reply
Old Feb 22, 2021 | 10:38 AM
  #12  
Red 94's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2021
Posts: 8
Likes: 0
Default

Well, I replaced the TPS and it ran well for a week or two. Going to work today, taking off from red lights and stop signs it started acting up again. Any other thoughts or ideas to try?
Reply
Old Feb 22, 2021 | 11:15 AM
  #13  
Mr. Dude with a face's Avatar
CF Active Member
5 Year Member
 
Joined: Jun 2018
Posts: 206
Likes: 36
From: Utah, USA
Default

I know it sounds elementery, but give your connections a check, see if they are working their way loose. Remember, they are as old as the truck, so they may be a bit of a pain.
Reply
Old Feb 22, 2021 | 12:38 PM
  #14  
Red 94's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2021
Posts: 8
Likes: 0
Default

Originally Posted by Mr. Dude with a face
I know it sounds elementery, but give your connections a check, see if they are working their way loose. Remember, they are as old as the truck, so they may be a bit of a pain.
It's a place to start. I thought I had a good click when I put it back together, but with my luck it did work it's way loose.
Reply
Old Mar 1, 2021 | 5:06 PM
  #15  
Red 94's Avatar
Thread Starter
CF Beginner
 
Joined: Jan 2021
Posts: 8
Likes: 0
Default

So the plug is together, but has a little play. I pressed it together as tight as I could get it. Seemed to run fine right after starting while everything was cold, once it warmed up to operating temp though it started acting up again. Could it be a MAP sensor? All the vacuum lines look to be in decent shape, but the sensor itself seems to be pretty bouncy on it's mount.
Reply
Old Mar 2, 2021 | 1:16 PM
  #16  
oilcanhenry's Avatar
CF Monarch
 
Joined: Oct 2017
Posts: 4,605
Likes: 269
From: USA
Default

Originally Posted by Red 94
I wasn't able to get my hands on an OBD I scanner, but I did find a test involving a paper clip and a list of codes on this forum. Based on the flashes I got it is the TPS sensor. I will be ordering that and getting it swapped. Thank you for your help!
Yeah the OBD I scanners came with so many adapters. I have an OBD I kit myself, and I'm not even an ASE tech!!

Working on a Husky 125B leaf blower now. It's getting spark, but I don't enough under pressure. Might have to get a new coil for $32 bucks!!!! Ouch!!

Last edited by oilcanhenry; Mar 2, 2021 at 1:20 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
niceguypmp3
Uplander
3
Jun 18, 2020 6:43 PM
Erik Jorgensen
Tahoe & Suburban
1
Apr 30, 2020 1:07 AM
niceguypmp3
Uplander
6
Sep 2, 2019 2:51 PM
cbrum1
Silverado, Sierra & Fullsize Pick-ups
1
Jul 12, 2014 5:22 AM
popcorn89
S-10 & Blazer
1
Feb 6, 2011 7:12 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 12:53 PM.