Hydrospec2001
TYF Newbie
- Joined
- Jul 17, 2018
- Posts
- 8
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Hey y’all back again with another issue that we can’t seem to figure out.
After the work on my a/c system in my Escalade and adding the auxiliary condensor fan it’s really cold driving but at idle in park it will slowly creep back up to 78. It will hold steady there unless I switch off the recirculation button. I live in Arizona and the temperature outside was well over 100 so I’m not sure if this is normal or if it should still blow colder.
The issue I noticed is that while running the a/c and driving in town the Escalade runs like crap at intersections or at a stop. It sounds like a diesel, almost like a loose rocker arm, and when I go to accelerate there is hesitation before it wants to go. Once going it seems to be ok and will even kick down into a passing gear but as soon as I get to the next light it will idle rough again with the noise occasionally coming back. Even today while it was in park and running for about 45 minutes it sounded ok but when I put it in gear to leave it wanted to die. It appears to only do this while the a/c is on though and when it is hot outside. Even with the a/c off taking off from a stoplight seems to be somewhat slow but I bought it used so I’m really not sure what to expect.
So far I have had a diagnostic run and the mechanic said the motor was running excellent as far as no misfires, fuel trims, and no codes. I cleaned the throttle body thinking maybe this was the issue as it seems like it fixes most peoples problems. It didn’t help. I also did a relearn on the throttlebody. My throttle body is the electronic one with the sensor on the pedal and on the throttle body. I’ve checked the ignition system along with the mechanic and there seems to be no issues. The fuel pressure was tested as well although the pump is a little noisy but I’ve heard it normal.
I’ve been searching for 3 days now trying to find somebody else with the similar issue but no luck. And to top it all off with no codes I have no idea what to try next. I’ve been throwing money at it for weeks now and I’m trying to avoid having to take it to another shop. Any ideas?
After the work on my a/c system in my Escalade and adding the auxiliary condensor fan it’s really cold driving but at idle in park it will slowly creep back up to 78. It will hold steady there unless I switch off the recirculation button. I live in Arizona and the temperature outside was well over 100 so I’m not sure if this is normal or if it should still blow colder.
The issue I noticed is that while running the a/c and driving in town the Escalade runs like crap at intersections or at a stop. It sounds like a diesel, almost like a loose rocker arm, and when I go to accelerate there is hesitation before it wants to go. Once going it seems to be ok and will even kick down into a passing gear but as soon as I get to the next light it will idle rough again with the noise occasionally coming back. Even today while it was in park and running for about 45 minutes it sounded ok but when I put it in gear to leave it wanted to die. It appears to only do this while the a/c is on though and when it is hot outside. Even with the a/c off taking off from a stoplight seems to be somewhat slow but I bought it used so I’m really not sure what to expect.
So far I have had a diagnostic run and the mechanic said the motor was running excellent as far as no misfires, fuel trims, and no codes. I cleaned the throttle body thinking maybe this was the issue as it seems like it fixes most peoples problems. It didn’t help. I also did a relearn on the throttlebody. My throttle body is the electronic one with the sensor on the pedal and on the throttle body. I’ve checked the ignition system along with the mechanic and there seems to be no issues. The fuel pressure was tested as well although the pump is a little noisy but I’ve heard it normal.
I’ve been searching for 3 days now trying to find somebody else with the similar issue but no luck. And to top it all off with no codes I have no idea what to try next. I’ve been throwing money at it for weeks now and I’m trying to avoid having to take it to another shop. Any ideas?
