Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
what is a control module?
I know my vehicle is a 2003 chevy suburban c1500. I took it to a local technician to find out what was wrong with it. He said it the computer is showing the "U1301" code and that there was a class 2 cummunication circuit low voltage. He said he didn't know what that meant, so I am not letting him tamper with my car. I need to know what is wrong with it so I can get it fixed. took it to get checked because every time I turn the wheel to make a left or a right turn, the whole car turns off on me. It just started doing so after I had to get it jumped by another car because my headlights were left on.
I believe it was the engine control module.
no, but I have ABS light on and the (P) light on.
Ok, the code U1301 is a communication fault code, is set when one control module is not talking to another control module. these codes normally dont cause a running problem. this code may be why the abs light is on, but doupt it is causing the stall problem. this code probably set while jumping starting. it probably is a history code and not current. dont think I would be to concerned with this code. besides requires a high end scan tool to properly check out.
as far as the stall, does this seem to happen at slow speeds?
try cleaning the throttle body with some carb cleaner or throttle body cleaner. real simple job.
there are several things, lean engine, low fuel pressure, intake gaskets leaking vacuum. dirty injectors. but normally if something is wrong, you would have other running problems and a check engine light on. also I have included some info on fuels and injectors
#04-06-04-047I: TOP TIER Detergent Gasoline (Deposits, Fuel Economy, No Start, Power, Performance, Stall Concerns) - U.S. Only - (Aug 17, 2009)
This bulletin is being revised to add model years and additional sources to the Top Tier Fuel Retailers list. Please discard Corporate Bulletin Number 04-06-04-047H (Section 06 - Engine/Propulsion System). In Canada, refer to Corporate Bulletin Number 05-06-04-022F.
A new class of fuel called TOP TIER Detergent Gasoline is appearing at retail stations of some fuel marketers. This gasoline meets detergency standards developed by six automotive companies. All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest Additive Concentration" set by the EPA. Those vehicles that have experienced deposit related concerns may especially benefit from the use of TOP TIER Detergent Gasoline.
As of August 1, 2009, all grades of the following gasoline brands meet the TOP TIER Detergent Gasoline Standards:
TOP TIER Detergent Gasoline is a new class of gasoline with enhanced detergency. It meets new, voluntary deposit control standards developed by six automotive companies that exceed the detergent requirements imposed by the EPA.
The TOP TIER program began on May 3, 2004 and many fuel marketers have joined the program and have introduced TOP TIER Detergent Gasoline. This is a voluntary program and not all fuel marketers will offer this product. Once fuel marketers make public announcements, they will appear on a list of brands that meet the TOP TIER standards.
On the web, please visit www.toptiergas.com for additional information and updated retailer lists.
TOP TIER Detergent Gasoline standards were developed by six automotive companies: Audi, BMW, General Motors, Honda, Toyota and Volkswagen.
TOP TIER Detergent Gasoline was developed to increase the level of detergent additive in gasoline. The EPA requires that all gasoline sold in the U.S. contain a detergent additive. However, the requirement is minimal and in many cases, is not sufficient to keep engines clean. In order to meet TOP TIER Detergent Gasoline standards, a higher level of detergent is needed than what is required by the EPA. Also, TOP TIER was developed to give fuel marketers the opportunity to differentiate their product.
All six corporations recognized the benefits to both the vehicle and the consumer. Also, joining together emphasized that low detergency is an issue of concern to several automotive companies.
TOP TIER Detergent Gasoline will help keep engines cleaner than gasoline containing the "Lowest Additive Concentration" set by the EPA. Clean engines help provide optimal fuel economy and performance and reduced emissions. Also, use of TOP TIER Detergent Gasoline will help reduce deposit related concerns.
Is the throttle body hard to reach to take out and clean? or is eveything about it a fairly easy job?
What do you mean by "engine misses?"