I cleaned my throttle body, MAF, & new filter but my truck still accelerates slowly. Going from 0 to 30 it moves VERY slow & when I get near 30mph it accelerates normal. In Reverse, it accelerates like normal. I'm a woman so I'm doing my best to tackle the issue without BUYING A $30,000 vehicle! I don't want notes! What can I fix next that may be the issue(s)?

 

I cleaned my throttle body, MAF, & new filter but my truck still accelerates slowly. Going from 0 to 30 it moves VERY slow & when I get near 30mph it accelerates normal. In Reverse, it accelerates like normal. I'm a woman so I'm doing my best to tackle the issue without BUYING A $30,000 vehicle! I don't want notes! What can I fix next that may be the issue(s)?

 

if the rpms are high but the truck is slow then your transmission might be slipping. check the transmission fluid level.

 

Try manual shift. Start @0mph in 1 while accelerating @15mph, shift to 2, and @25mph shift to 3. Any difference?

 

Welcome to HF. The HF Help & Suggestion Center is for asking questions about how to use forum features, not for anything to do with vehicles.

How many miles on the H3? I would check the Trans Fluid Level and Quality using a white paper towel to wipr off the dip stick.

 

I have 158,000 miles. Thanks everyone! I will try EVERYTHING that you guys recommended & I'll get back ASAP.

In my absence from here I put in a new MAF sensor MAP sensor CamShaft Variable Valve Timing Solenoid & changed my oil, plus put in a new oil filter. Those all were between 10,000 to 30,000 miles over due.

​Again, thanks!

Debo!

 

I will try checking the transmission fluid now. I'll flush it too.

 

I have 196,506 sorry I thought it was 158,000. And I'm about to do what you suggested.

 

 

What is this whole component called? What's the BROWN connector object called. I need to replace it because it's broken in one small area.

The broken part is highlighted in red. The whole object is highlighted in yellow. What's it called? Any idea where I can get a picture of the whole thing labeled piece by piece in case I need to change a part? Thanks! I have a 2007 H3 Hummer 160K miles & no, I don't wanna new vehicle. I don't wanna junk my truck because I had it about 8 years & this is my first major problem. THANKS!