Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



Username Post: Still can't figure this out        (Topic#350623)
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-14-18 02:23 PM - Post#2730972    

Ok so ive posted before and got some answers as far as what my problem was and ive changed everything i thought was the problem. its a 1988 Scottsdale 5.7L and if i start the truck in the morning and drive 3 to 4 miles straight then stop at a stop sign or red light and go to take off it almost always dies or idles so low it seems like its going to die. it will start right back but this is becoming increasingly more dangerous.

Alright so what ive changed is Spark plugs, wires, cap and rotor, fuel pump, IAC valve, TPS, and coolant temp sensor. yet not one of those fixed the problem. i dont see anything else it could be.



 
454cid 
Valued Contributor
Posts: 2666
454cid
Age: 45
Loc: West Michigan
Reg: 02-18-12
04-14-18 03:11 PM - Post#2730979    
    In response to PolarBadger

EGR sticking open? I've run my truck down the highway before, and had it stumble a lot after exiting, but it hasn't happened enough for me to look into it.


99 K3500 RCLB


 
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-14-18 04:12 PM - Post#2730984    
    In response to 454cid

do you think that would happen after it warms up?cause once the trucks warmed up all the way its fine it wont die or hesitate or anything. but i could see it warming up and somehow causing the egr to work right compared to cold



 
rockfangd 
"5th Year" Gold Supporting Member
Posts: 2354
rockfangd
Age: 32
Loc: Utica ny
Reg: 04-13-10
04-14-18 05:04 PM - Post#2730990    
    In response to PolarBadger

Which coolant temp sensor did you replace?
The one on the intake or the one on the left head?

Old School GM fan FOREVER


 
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-14-18 06:31 PM - Post#2730994    
    In response to rockfangd

intake



 
Ryan53 
Infrequent Contributer
Posts: 41

Loc: South Dakota
Reg: 07-15-16
04-14-18 07:39 PM - Post#2730999    
    In response to PolarBadger

  • PolarBadger Said:
Ok so ive posted before and got some answers as far as what my problem was and ive changed everything i thought was the problem. its a 1988 Scottsdale 5.7L and if i start the truck in the morning and drive 3 to 4 miles straight then stop at a stop sign or red light and go to take off it almost always dies or idles so low it seems like its going to die. it will start right back but this is becoming increasingly more dangerous.

Alright so what ive changed is Spark plugs, wires, cap and rotor, fuel pump, IAC valve, TPS, and coolant temp sensor. yet not one of those fixed the problem. i dont see anything else it could be.



Have you checked for broken/cracked plastic vacuum lines or bad gasket under the throttle body?

1953 Chevy Belair 2dr sedan, 235/3speed 6volt
2000 (gmt400) K2500 CCSB 350/auto


 
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-15-18 05:40 AM - Post#2731017    
    In response to Ryan53

i had replaced some lines that went to the egr and we have took the throttle body off a couple of times. so we finally replaced the gasket on it but i am going to go get some vacuum line today. ill just replace all of that cause you know the ones near the egr those crappy plastic lines im just going to replace them and any others that look even remotely bad



 
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-15-18 05:02 PM - Post#2731087    
    In response to PolarBadger

Ok parts store cant get egr valve till tomorrow so will have update tomorrow



 
454cid 
Valued Contributor
Posts: 2666
454cid
Age: 45
Loc: West Michigan
Reg: 02-18-12
04-15-18 05:43 PM - Post#2731097    
    In response to PolarBadger

  • PolarBadger Said:
Ok parts store cant get egr valve till tomorrow so will have update tomorrow



Why don't you block the EGR off, and see if it's stops happening? If it's blocked it can't stick open. Then if it doesn't help, you don't buy a new EGR valve that you don't need.


99 K3500 RCLB


 
PolarBadger 
Infrequent Contributer
Posts: 24

Loc: Tennessee
Reg: 10-30-16
04-16-18 12:00 PM - Post#2731173    
    In response to 454cid

Well i tried that although the egr looks rough it fine however ive found some new problems and i did fix the main problem of this post. new problems are my steering rod where that bushing deal is is loosened up so i have slack in the steering and there is a crack in my exhaust manifold on the passenger side. my original problem is that is was about 6 notches back in my timing. as soon as i drove it down the road when the timing was set right i could tell the difference and tell how bad the crack was in the manifold. wish i has some headers or could find some cheap but i guess a junkyard manifold will work.



 
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

242 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.209 seconds.   Total Queries: 16   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 11:01 AM
Top